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| <li>Summary: </li> |
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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.sql</a></div> |
| <h2 title="Class SqlOperator" class="title">Class SqlOperator</h2> |
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| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.sql.SqlOperator</li> |
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| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="SqlBinaryOperator.html" title="class in org.apache.calcite.sql">SqlBinaryOperator</a></code>, <code><a href="fun/SqlCaseOperator.html" title="class in org.apache.calcite.sql.fun">SqlCaseOperator</a></code>, <code><a href="SqlFunction.html" title="class in org.apache.calcite.sql">SqlFunction</a></code>, <code><a href="SqlJoin.SqlJoinOperator.html" title="class in org.apache.calcite.sql">SqlJoin.SqlJoinOperator</a></code>, <code><a href="SqlMatchRecognize.SqlMatchRecognizeOperator.html" title="class in org.apache.calcite.sql">SqlMatchRecognize.SqlMatchRecognizeOperator</a></code>, <code><a href="SqlPostfixOperator.html" title="class in org.apache.calcite.sql">SqlPostfixOperator</a></code>, <code><a href="SqlPrefixOperator.html" title="class in org.apache.calcite.sql">SqlPrefixOperator</a></code>, <code><a href="SqlSelectOperator.html" title="class in org.apache.calcite.sql">SqlSelectOperator</a></code>, <code><a href="SqlSnapshot.SqlSnapshotOperator.html" title="class in org.apache.calcite.sql">SqlSnapshot.SqlSnapshotOperator</a></code>, <code><a href="SqlSpecialOperator.html" title="class in org.apache.calcite.sql">SqlSpecialOperator</a></code>, <code><a href="SqlWindow.SqlWindowOperator.html" title="class in org.apache.calcite.sql">SqlWindow.SqlWindowOperator</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public abstract class <span class="typeNameLabel">SqlOperator</span> |
| extends java.lang.Object</pre> |
| <div class="block">A <code>SqlOperator</code> is a type of node in a SQL parse tree (it is NOT a |
| node in a SQL parse tree). It includes functions, operators such as '=', and |
| syntactic constructs such as 'case' statements. Operators may represent |
| query-level expressions (e.g. <a href="SqlSelectOperator.html" title="class in org.apache.calcite.sql"><code>SqlSelectOperator</code></a> or row-level |
| expressions (e.g. <a href="fun/SqlBetweenOperator.html" title="class in org.apache.calcite.sql.fun"><code>SqlBetweenOperator</code></a>. |
| |
| <p>Operators have <em>formal operands</em>, meaning ordered (and optionally |
| named) placeholders for the values they operate on. For example, the division |
| operator takes two operands; the first is the numerator and the second is the |
| denominator. In the context of subclass <a href="SqlFunction.html" title="class in org.apache.calcite.sql"><code>SqlFunction</code></a>, formal operands |
| are referred to as <em>parameters</em>. |
| |
| <p>When an operator is instantiated via a <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a>, it is supplied |
| with <em>actual operands</em>. For example, in the expression <code>3 / |
| 5</code>, the literal expression <code>3</code> is the actual operand |
| corresponding to the numerator, and <code>5</code> is the actual operand |
| corresponding to the denominator. In the context of SqlFunction, actual |
| operands are referred to as <em>arguments</em> |
| |
| <p>In many cases, the formal/actual distinction is clear from context, in |
| which case we drop these qualifiers.</div> |
| </li> |
| </ul> |
| </div> |
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| <!-- =========== FIELD SUMMARY =========== --> |
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| </a> |
| <h3>Field Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Fields</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code><a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#kind">kind</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">See <a href="SqlKind.html" title="enum in org.apache.calcite.sql"><code>SqlKind</code></a>.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#leftPrec">leftPrec</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The precedence with which this operator binds to the expression to the |
| left.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#MDX_PRECEDENCE">MDX_PRECEDENCE</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Maximum precedence.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#name">name</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The name of the operator/function.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#NL">NL</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#operandTypeChecker">operandTypeChecker</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">used to validate operand types</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#operandTypeInference">operandTypeInference</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">used to infer types of unknown operands</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#returnTypeInference">returnTypeInference</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">used to infer the return type of a call to this operator</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>private int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rightPrec">rightPrec</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">The precedence with which this operator binds to the expression to the |
| right.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <!-- --> |
| </a> |
| <h3>Constructor Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Constructors</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier</th> |
| <th class="colSecond" scope="col">Constructor</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,org.apache.calcite.sql.SqlKind,int,boolean,org.apache.calcite.sql.type.SqlReturnTypeInference,org.apache.calcite.sql.type.SqlOperandTypeInference,org.apache.calcite.sql.type.SqlOperandTypeChecker)">SqlOperator</a></span>​(java.lang.String name, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> kind, |
| int prec, |
| boolean leftAssoc, |
| <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> returnTypeInference, |
| <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> operandTypeInference, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> operandTypeChecker)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates an operator specifying left/right associativity.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <th class="colConstructorName" scope="row"><code><span class="memberNameLink"><a href="#%3Cinit%3E(java.lang.String,org.apache.calcite.sql.SqlKind,int,int,org.apache.calcite.sql.type.SqlReturnTypeInference,org.apache.calcite.sql.type.SqlOperandTypeInference,org.apache.calcite.sql.type.SqlOperandTypeChecker)">SqlOperator</a></span>​(java.lang.String name, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> kind, |
| int leftPrecedence, |
| int rightPrecedence, |
| <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> returnTypeInference, |
| <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> operandTypeInference, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> operandTypeChecker)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates an operator.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">Deprecated Methods</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Method</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><R> R</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall)">acceptCall</a></span>​(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a><R> visitor, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, visiting each operand of a call.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><R> void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)">acceptCall</a></span>​(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a><R> visitor, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| boolean onlyExpressions, |
| <a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util">SqlBasicVisitor.ArgHandler</a><R> argHandler)</code></th> |
| <td class="colLast"> |
| <div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, directing an |
| <a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util"><code>SqlBasicVisitor.ArgHandler</code></a> |
| to visit an operand of a call.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#adjustType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,org.apache.calcite.rel.type.RelDataType)">adjustType</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</code></th> |
| <td class="colLast"> |
| <div class="block">Validates and determines coercibility and resulting collation name of |
| binary operator if needed.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#allowsFraming()">allowsFraming</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this is a window function that allows framing (i.e.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#argumentMustBeScalar(int)">argumentMustBeScalar</a></span>​(int ordinal)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether the <code>ordinal</code>th argument to this operator must |
| be scalar (as opposed to a query).</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkOperandCount(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.type.SqlOperandTypeChecker,org.apache.calcite.sql.SqlCall)">checkOperandCount</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> argType, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)">checkOperandTypes</a></span>​(<a href="SqlCallBinding.html" title="class in org.apache.calcite.sql">SqlCallBinding</a> callBinding, |
| boolean throwOnFailure)</code></th> |
| <td class="colLast"> |
| <div class="block">Checks that the operand values in a <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> to this operator are |
| valid.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>protected java.util.List<java.lang.String></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constructArgNameList(org.apache.calcite.sql.SqlCall)">constructArgNameList</a></span>​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>protected java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constructArgTypeList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall,java.util.List,boolean)">constructArgTypeList</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| java.util.List<<a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>> args, |
| boolean convertRowArgToColumnList)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code>protected java.util.List<<a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#constructOperandList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,java.util.List)">constructOperandList</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| java.util.List<java.lang.String> argNames)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createCall(org.apache.calcite.sql.parser.SqlParserPos,java.util.List)">createCall</a></span>​(<a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| java.util.List<? extends <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>> operandList)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a call to this operand with a list of operands.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createCall(org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)">createCall</a></span>​(<a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>... operands)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a call to this operand with an array of operands.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createCall(org.apache.calcite.sql.SqlLiteral,org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)">createCall</a></span>​(<a href="SqlLiteral.html" title="class in org.apache.calcite.sql">SqlLiteral</a> functionQualifier, |
| <a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>... operands)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a call to this operand with an array of operands.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#createCall(org.apache.calcite.sql.SqlNodeList)">createCall</a></span>​(<a href="SqlNodeList.html" title="class in org.apache.calcite.sql">SqlNodeList</a> nodeList)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a call to this operand with a list of operands contained in a |
| <a href="SqlNodeList.html" title="class in org.apache.calcite.sql"><code>SqlNodeList</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">deriveType</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Derives the type of a call to this operator.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#equals(java.lang.Object)">equals</a></span>​(java.lang.Object obj)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getAllowedSignatures()">getAllowedSignatures</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a string describing the expected operand types of a call, e.g.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getAllowedSignatures(java.lang.String)">getAllowedSignatures</a></span>​(java.lang.String opNameToUse)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a string describing the expected operand types of a call, e.g.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code><a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getKind()">getKind</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getLeftPrec()">getLeftPrec</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code><a href="validate/SqlMonotonicity.html" title="enum in org.apache.calcite.sql.validate">SqlMonotonicity</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMonotonicity(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidatorScope)">getMonotonicity</a></span>​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope)</code></th> |
| <td class="colLast"> |
| <div class="block"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Use <a href="#getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)"><code>getMonotonicity(SqlOperatorBinding)</code></a></div> |
| </div> |
| </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code><a href="validate/SqlMonotonicity.html" title="enum in org.apache.calcite.sql.validate">SqlMonotonicity</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)">getMonotonicity</a></span>​(<a href="SqlOperatorBinding.html" title="class in org.apache.calcite.sql">SqlOperatorBinding</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether a call to this operator is monotonic.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getName()">getName</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="SqlIdentifier.html" title="class in org.apache.calcite.sql">SqlIdentifier</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getNameAsId()">getNameAsId</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the fully-qualified name of this operator.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code><a href="SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperandCountRange()">getOperandCountRange</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a constraint on the number of operands expected by this operator.</div> |
| </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code><a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperandTypeChecker()">getOperandTypeChecker</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code><a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getOperandTypeInference()">getOperandTypeInference</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code><a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getReturnTypeInference()">getReturnTypeInference</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getRightPrec()">getRightPrec</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i29" class="rowColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSignatureTemplate(int)">getSignatureTemplate</a></span>​(int operandsCount)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a template describing how the operator signature is to be built.</div> |
| </td> |
| </tr> |
| <tr id="i30" class="altColor"> |
| <td class="colFirst"><code>abstract <a href="SqlSyntax.html" title="enum in org.apache.calcite.sql">SqlSyntax</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getSyntax()">getSyntax</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the syntactic type of this operator, never null.</div> |
| </td> |
| </tr> |
| <tr id="i31" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hashCode()">hashCode</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i32" class="altColor"> |
| <td class="colFirst"><code><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inferReturnType(org.apache.calcite.rel.type.RelDataTypeFactory,java.util.List)">inferReturnType</a></span>​(<a href="../rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a> typeFactory, |
| java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> operandTypes)</code></th> |
| <td class="colLast"> |
| <div class="block">Infers the type of a call to this operator with a given set of operand |
| types.</div> |
| </td> |
| </tr> |
| <tr id="i33" class="rowColor"> |
| <td class="colFirst"><code><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)">inferReturnType</a></span>​(<a href="SqlOperatorBinding.html" title="class in org.apache.calcite.sql">SqlOperatorBinding</a> opBinding)</code></th> |
| <td class="colLast"> |
| <div class="block">Infers the return type of an invocation of this operator; only called |
| after the number and types of operands have already been validated.</div> |
| </td> |
| </tr> |
| <tr id="i34" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isAggregator()">isAggregator</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this operator is an aggregate function.</div> |
| </td> |
| </tr> |
| <tr id="i35" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isDeterministic()">isDeterministic</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i36" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isDynamicFunction()">isDynamicFunction</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i37" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isGroup()">isGroup</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this is a group function.</div> |
| </td> |
| </tr> |
| <tr id="i38" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isGroupAuxiliary()">isGroupAuxiliary</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this is an group auxiliary function.</div> |
| </td> |
| </tr> |
| <tr id="i39" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isName(java.lang.String,boolean)">isName</a></span>​(java.lang.String testName, |
| boolean caseSensitive)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i40" class="altColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#leftPrec(int,boolean)">leftPrec</a></span>​(int prec, |
| boolean leftAssoc)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i41" class="rowColor"> |
| <td class="colFirst"><code>(package private) boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#needsSpace()">needsSpace</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this operator should be surrounded by space when |
| unparsed.</div> |
| </td> |
| </tr> |
| <tr id="i42" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#preValidateCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">preValidateCall</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Receives notification that validation of a call to this operator is |
| beginning.</div> |
| </td> |
| </tr> |
| <tr id="i43" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#requiresDecimalExpansion()">requiresDecimalExpansion</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Method to check if call requires expansion when it has decimal operands.</div> |
| </td> |
| </tr> |
| <tr id="i44" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#requiresOrder()">requiresOrder</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this is a window function that requires ordering.</div> |
| </td> |
| </tr> |
| <tr id="i45" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#requiresOver()">requiresOver</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether this is a window function that requires an OVER clause.</div> |
| </td> |
| </tr> |
| <tr id="i46" class="altColor"> |
| <td class="colFirst"><code><a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)">rewriteCall</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Rewrites a call to this operator.</div> |
| </td> |
| </tr> |
| <tr id="i47" class="rowColor"> |
| <td class="colFirst"><code>protected static int</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#rightPrec(int,boolean)">rightPrec</a></span>​(int prec, |
| boolean leftAssoc)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i48" class="altColor"> |
| <td class="colFirst"><code>java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toString()">toString</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i49" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unparse(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlCall,int,int)">unparse</a></span>​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| int leftPrec, |
| int rightPrec)</code></th> |
| <td class="colLast"> |
| <div class="block">Writes a SQL representation of a call to this operator to a writer, |
| including parentheses if the operators on either side are of greater |
| precedence.</div> |
| </td> |
| </tr> |
| <tr id="i50" class="altColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode)">unparseListClause</a></span>​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> clause)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i51" class="rowColor"> |
| <td class="colFirst"><code>protected void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.SqlKind)">unparseListClause</a></span>​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> clause, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> sepKind)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i52" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)">validateCall</a></span>​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> operandScope)</code></th> |
| <td class="colLast"> |
| <div class="block">Validates a call to this operator.</div> |
| </td> |
| </tr> |
| <tr id="i53" class="rowColor"> |
| <td class="colFirst"><code><a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validateOperands(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)">validateOperands</a></span>​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</code></th> |
| <td class="colLast"> |
| <div class="block">Validates the operands of a call, inferring the return type in the |
| process.</div> |
| </td> |
| </tr> |
| <tr id="i54" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validRexOperands(int,org.apache.calcite.util.Litmus)">validRexOperands</a></span>​(int count, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether the given operands are valid.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.Object</h3> |
| <code>clone, finalize, getClass, notify, notifyAll, wait, wait, wait</code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| <!-- ============ FIELD DETAIL =========== --> |
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| </a> |
| <h3>Field Detail</h3> |
| <a id="NL"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>NL</h4> |
| <pre>public static final java.lang.String NL</pre> |
| </li> |
| </ul> |
| <a id="MDX_PRECEDENCE"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>MDX_PRECEDENCE</h4> |
| <pre>public static final int MDX_PRECEDENCE</pre> |
| <div class="block">Maximum precedence.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../constant-values.html#org.apache.calcite.sql.SqlOperator.MDX_PRECEDENCE">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="name"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>name</h4> |
| <pre>private final java.lang.String name</pre> |
| <div class="block">The name of the operator/function. Ex. "OVERLAY" or "TRIM"</div> |
| </li> |
| </ul> |
| <a id="kind"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>kind</h4> |
| <pre>public final <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> kind</pre> |
| <div class="block">See <a href="SqlKind.html" title="enum in org.apache.calcite.sql"><code>SqlKind</code></a>. It's possible to have a name that doesn't match the |
| kind</div> |
| </li> |
| </ul> |
| <a id="leftPrec"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>leftPrec</h4> |
| <pre>private final int leftPrec</pre> |
| <div class="block">The precedence with which this operator binds to the expression to the |
| left. This is less than the right precedence if the operator is |
| left-associative.</div> |
| </li> |
| </ul> |
| <a id="rightPrec"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rightPrec</h4> |
| <pre>private final int rightPrec</pre> |
| <div class="block">The precedence with which this operator binds to the expression to the |
| right. This is more than the left precedence if the operator is |
| left-associative.</div> |
| </li> |
| </ul> |
| <a id="returnTypeInference"> |
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| </a> |
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| <h4>returnTypeInference</h4> |
| <pre>private final <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> returnTypeInference</pre> |
| <div class="block">used to infer the return type of a call to this operator</div> |
| </li> |
| </ul> |
| <a id="operandTypeInference"> |
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| </a> |
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| <li class="blockList"> |
| <h4>operandTypeInference</h4> |
| <pre>private final <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> operandTypeInference</pre> |
| <div class="block">used to infer types of unknown operands</div> |
| </li> |
| </ul> |
| <a id="operandTypeChecker"> |
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| <h4>operandTypeChecker</h4> |
| <pre>private final <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> operandTypeChecker</pre> |
| <div class="block">used to validate operand types</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
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| <li class="blockList"><a id="constructor.detail"> |
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| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(java.lang.String,org.apache.calcite.sql.SqlKind,int,int,org.apache.calcite.sql.type.SqlReturnTypeInference,org.apache.calcite.sql.type.SqlOperandTypeInference,org.apache.calcite.sql.type.SqlOperandTypeChecker)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>SqlOperator</h4> |
| <pre>protected SqlOperator​(java.lang.String name, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> kind, |
| int leftPrecedence, |
| int rightPrecedence, |
| <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> returnTypeInference, |
| <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> operandTypeInference, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> operandTypeChecker)</pre> |
| <div class="block">Creates an operator.</div> |
| </li> |
| </ul> |
| <a id="<init>(java.lang.String,org.apache.calcite.sql.SqlKind,int,boolean,org.apache.calcite.sql.type.SqlReturnTypeInference,org.apache.calcite.sql.type.SqlOperandTypeInference,org.apache.calcite.sql.type.SqlOperandTypeChecker)"> |
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| </a> |
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| <h4>SqlOperator</h4> |
| <pre>protected SqlOperator​(java.lang.String name, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> kind, |
| int prec, |
| boolean leftAssoc, |
| <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> returnTypeInference, |
| <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> operandTypeInference, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> operandTypeChecker)</pre> |
| <div class="block">Creates an operator specifying left/right associativity.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section role="region"> |
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| </a> |
| <h3>Method Detail</h3> |
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| </a> |
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| <li class="blockList"> |
| <h4>leftPrec</h4> |
| <pre class="methodSignature">protected static int leftPrec​(int prec, |
| boolean leftAssoc)</pre> |
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| </ul> |
| <a id="rightPrec(int,boolean)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rightPrec</h4> |
| <pre class="methodSignature">protected static int rightPrec​(int prec, |
| boolean leftAssoc)</pre> |
| </li> |
| </ul> |
| <a id="getOperandTypeChecker()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOperandTypeChecker</h4> |
| <pre class="methodSignature">public <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> getOperandTypeChecker()</pre> |
| </li> |
| </ul> |
| <a id="getOperandCountRange()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOperandCountRange</h4> |
| <pre class="methodSignature">public <a href="SqlOperandCountRange.html" title="interface in org.apache.calcite.sql">SqlOperandCountRange</a> getOperandCountRange()</pre> |
| <div class="block">Returns a constraint on the number of operands expected by this operator. |
| Subclasses may override this method; when they don't, the range is |
| derived from the <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type"><code>SqlOperandTypeChecker</code></a> associated with this |
| operator.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>acceptable range</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getName()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getName</h4> |
| <pre class="methodSignature">public java.lang.String getName()</pre> |
| </li> |
| </ul> |
| <a id="getNameAsId()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getNameAsId</h4> |
| <pre class="methodSignature">public <a href="SqlIdentifier.html" title="class in org.apache.calcite.sql">SqlIdentifier</a> getNameAsId()</pre> |
| <div class="block">Returns the fully-qualified name of this operator.</div> |
| </li> |
| </ul> |
| <a id="getKind()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getKind</h4> |
| <pre class="methodSignature">public <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> getKind()</pre> |
| </li> |
| </ul> |
| <a id="toString()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>toString</h4> |
| <pre class="methodSignature">public java.lang.String toString()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>toString</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getLeftPrec()"> |
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| </a> |
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| <li class="blockList"> |
| <h4>getLeftPrec</h4> |
| <pre class="methodSignature">public int getLeftPrec()</pre> |
| </li> |
| </ul> |
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| </a> |
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| <h4>getRightPrec</h4> |
| <pre class="methodSignature">public int getRightPrec()</pre> |
| </li> |
| </ul> |
| <a id="getSyntax()"> |
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| </a> |
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| <li class="blockList"> |
| <h4>getSyntax</h4> |
| <pre class="methodSignature">public abstract <a href="SqlSyntax.html" title="enum in org.apache.calcite.sql">SqlSyntax</a> getSyntax()</pre> |
| <div class="block">Returns the syntactic type of this operator, never null.</div> |
| </li> |
| </ul> |
| <a id="createCall(org.apache.calcite.sql.SqlLiteral,org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createCall</h4> |
| <pre class="methodSignature">public <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> createCall​(<a href="SqlLiteral.html" title="class in org.apache.calcite.sql">SqlLiteral</a> functionQualifier, |
| <a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>... operands)</pre> |
| <div class="block">Creates a call to this operand with an array of operands. |
| |
| <p>The position of the resulting call is the union of the <code> |
| pos</code> and the positions of all of the operands.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>functionQualifier</code> - function qualifier (e.g. "DISTINCT"), may be</dd> |
| <dd><code>pos</code> - parser position of the identifier of the call</dd> |
| <dd><code>operands</code> - array of operands</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createCall(org.apache.calcite.sql.parser.SqlParserPos,org.apache.calcite.sql.SqlNode...)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createCall</h4> |
| <pre class="methodSignature">public final <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> createCall​(<a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>... operands)</pre> |
| <div class="block">Creates a call to this operand with an array of operands. |
| |
| <p>The position of the resulting call is the union of the <code> |
| pos</code> and the positions of all of the operands.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>pos</code> - Parser position</dd> |
| <dd><code>operands</code> - List of arguments</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>call to this operator</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createCall(org.apache.calcite.sql.SqlNodeList)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createCall</h4> |
| <pre class="methodSignature">public final <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> createCall​(<a href="SqlNodeList.html" title="class in org.apache.calcite.sql">SqlNodeList</a> nodeList)</pre> |
| <div class="block">Creates a call to this operand with a list of operands contained in a |
| <a href="SqlNodeList.html" title="class in org.apache.calcite.sql"><code>SqlNodeList</code></a>. |
| |
| <p>The position of the resulting call inferred from the SqlNodeList.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>nodeList</code> - List of arguments</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>call to this operator</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createCall(org.apache.calcite.sql.parser.SqlParserPos,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createCall</h4> |
| <pre class="methodSignature">public final <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> createCall​(<a href="parser/SqlParserPos.html" title="class in org.apache.calcite.sql.parser">SqlParserPos</a> pos, |
| java.util.List<? extends <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>> operandList)</pre> |
| <div class="block">Creates a call to this operand with a list of operands. |
| |
| <p>The position of the resulting call is the union of the <code> |
| pos</code> and the positions of all of the operands.</div> |
| </li> |
| </ul> |
| <a id="rewriteCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>rewriteCall</h4> |
| <pre class="methodSignature">public <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> rewriteCall​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block">Rewrites a call to this operator. Some operators are implemented as |
| trivial rewrites (e.g. NULLIF becomes CASE). However, we don't do this at |
| createCall time because we want to preserve the original SQL syntax as |
| much as possible; instead, we do this before the call is validated (so |
| the trivial operator doesn't need its own implementation of type |
| derivation methods). The default implementation is to just return the |
| original call without any rewrite.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>validator</code> - Validator</dd> |
| <dd><code>call</code> - Call to be rewritten</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>rewritten call</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="unparse(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlCall,int,int)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparse</h4> |
| <pre class="methodSignature">public void unparse​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| int leftPrec, |
| int rightPrec)</pre> |
| <div class="block">Writes a SQL representation of a call to this operator to a writer, |
| including parentheses if the operators on either side are of greater |
| precedence. |
| |
| <p>The default implementation of this method delegates to |
| <a href="SqlSyntax.html#unparse(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlOperator,org.apache.calcite.sql.SqlCall,int,int)"><code>SqlSyntax.unparse(org.apache.calcite.sql.SqlWriter, org.apache.calcite.sql.SqlOperator, org.apache.calcite.sql.SqlCall, int, int)</code></a>.</div> |
| </li> |
| </ul> |
| <a id="unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseListClause</h4> |
| <pre class="methodSignature">protected void unparseListClause​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> clause)</pre> |
| </li> |
| </ul> |
| <a id="unparseListClause(org.apache.calcite.sql.SqlWriter,org.apache.calcite.sql.SqlNode,org.apache.calcite.sql.SqlKind)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>unparseListClause</h4> |
| <pre class="methodSignature">protected void unparseListClause​(<a href="SqlWriter.html" title="interface in org.apache.calcite.sql">SqlWriter</a> writer, |
| <a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a> clause, |
| <a href="SqlKind.html" title="enum in org.apache.calcite.sql">SqlKind</a> sepKind)</pre> |
| </li> |
| </ul> |
| <a id="equals(java.lang.Object)"> |
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| </a> |
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| <li class="blockList"> |
| <h4>equals</h4> |
| <pre class="methodSignature">public boolean equals​(java.lang.Object obj)</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>equals</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isName(java.lang.String,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isName</h4> |
| <pre class="methodSignature">public boolean isName​(java.lang.String testName, |
| boolean caseSensitive)</pre> |
| </li> |
| </ul> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>hashCode</h4> |
| <pre class="methodSignature">public int hashCode()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Overrides:</span></dt> |
| <dd><code>hashCode</code> in class <code>java.lang.Object</code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateCall(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.validate.SqlValidatorScope)"> |
| <!-- --> |
| </a> |
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| <h4>validateCall</h4> |
| <pre class="methodSignature">public void validateCall​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> operandScope)</pre> |
| <div class="block">Validates a call to this operator. |
| |
| <p>This method should not perform type-derivation or perform validation |
| related related to types. That is done later, by |
| <a href="#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"><code>deriveType(SqlValidator, SqlValidatorScope, SqlCall)</code></a>. This method |
| should focus on structural validation. |
| |
| <p>A typical implementation of this method first validates the operands, |
| then performs some operator-specific logic. The default implementation |
| just validates the operands. |
| |
| <p>This method is the default implementation of <a href="SqlCall.html#validate(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope)"><code>SqlCall.validate(org.apache.calcite.sql.validate.SqlValidator, org.apache.calcite.sql.validate.SqlValidatorScope)</code></a>; |
| but note that some sub-classes of <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> never call this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - the call to this operator</dd> |
| <dd><code>validator</code> - the active validator</dd> |
| <dd><code>scope</code> - validator scope</dd> |
| <dd><code>operandScope</code> - validator scope in which to validate operands to this |
| call; usually equal to scope, but not always because |
| some operators introduce new scopes</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="SqlNode.html#validateExpr(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope)"><code>SqlNode.validateExpr(SqlValidator, SqlValidatorScope)</code></a>, |
| <a href="#deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"><code>deriveType(SqlValidator, SqlValidatorScope, SqlCall)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="validateOperands(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validateOperands</h4> |
| <pre class="methodSignature">public final <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> validateOperands​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block">Validates the operands of a call, inferring the return type in the |
| process.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>validator</code> - active validator</dd> |
| <dd><code>scope</code> - validation scope</dd> |
| <dd><code>call</code> - call to be validated</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>inferred type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="preValidateCall(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>preValidateCall</h4> |
| <pre class="methodSignature">protected void preValidateCall​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block">Receives notification that validation of a call to this operator is |
| beginning. Subclasses can supply custom behavior; default implementation |
| does nothing.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>validator</code> - invoking validator</dd> |
| <dd><code>scope</code> - validation scope</dd> |
| <dd><code>call</code> - the call being validated</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>inferReturnType</h4> |
| <pre class="methodSignature">public <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inferReturnType​(<a href="SqlOperatorBinding.html" title="class in org.apache.calcite.sql">SqlOperatorBinding</a> opBinding)</pre> |
| <div class="block">Infers the return type of an invocation of this operator; only called |
| after the number and types of operands have already been validated. |
| Subclasses must either override this method or supply an instance of |
| <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type"><code>SqlReturnTypeInference</code></a> to the constructor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>opBinding</code> - description of invocation (not necessarily a |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a>)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>inferred return type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="deriveType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>deriveType</h4> |
| <pre class="methodSignature">public <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> deriveType​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block">Derives the type of a call to this operator. |
| |
| <p>This method is an intrinsic part of the validation process so, unlike |
| <a href="#inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)"><code>inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)</code></a>, specific operators would not typically override |
| this method.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>validator</code> - Validator</dd> |
| <dd><code>scope</code> - Scope of validation</dd> |
| <dd><code>call</code> - Call to this operator</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Type of call</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="constructArgNameList(org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>constructArgNameList</h4> |
| <pre class="methodSignature">protected java.util.List<java.lang.String> constructArgNameList​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| </li> |
| </ul> |
| <a id="constructOperandList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>constructOperandList</h4> |
| <pre class="methodSignature">protected java.util.List<<a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>> constructOperandList​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| java.util.List<java.lang.String> argNames)</pre> |
| </li> |
| </ul> |
| <a id="constructArgTypeList(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.validate.SqlValidatorScope,org.apache.calcite.sql.SqlCall,java.util.List,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>constructArgTypeList</h4> |
| <pre class="methodSignature">protected java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> constructArgTypeList​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| java.util.List<<a href="SqlNode.html" title="class in org.apache.calcite.sql">SqlNode</a>> args, |
| boolean convertRowArgToColumnList)</pre> |
| </li> |
| </ul> |
| <a id="needsSpace()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>needsSpace</h4> |
| <pre class="methodSignature">boolean needsSpace()</pre> |
| <div class="block">Returns whether this operator should be surrounded by space when |
| unparsed.</div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether this operator should be surrounded by space</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="adjustType(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.SqlCall,org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>adjustType</h4> |
| <pre class="methodSignature">protected <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> adjustType​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</pre> |
| <div class="block">Validates and determines coercibility and resulting collation name of |
| binary operator if needed.</div> |
| </li> |
| </ul> |
| <a id="inferReturnType(org.apache.calcite.rel.type.RelDataTypeFactory,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>inferReturnType</h4> |
| <pre class="methodSignature">public final <a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> inferReturnType​(<a href="../rel/type/RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a> typeFactory, |
| java.util.List<<a href="../rel/type/RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> operandTypes)</pre> |
| <div class="block">Infers the type of a call to this operator with a given set of operand |
| types. Shorthand for <a href="#inferReturnType(org.apache.calcite.sql.SqlOperatorBinding)"><code>inferReturnType(SqlOperatorBinding)</code></a>.</div> |
| </li> |
| </ul> |
| <a id="checkOperandTypes(org.apache.calcite.sql.SqlCallBinding,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>checkOperandTypes</h4> |
| <pre class="methodSignature">public boolean checkOperandTypes​(<a href="SqlCallBinding.html" title="class in org.apache.calcite.sql">SqlCallBinding</a> callBinding, |
| boolean throwOnFailure)</pre> |
| <div class="block">Checks that the operand values in a <a href="SqlCall.html" title="class in org.apache.calcite.sql"><code>SqlCall</code></a> to this operator are |
| valid. Subclasses must either override this method or supply an instance |
| of <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type"><code>SqlOperandTypeChecker</code></a> to the constructor.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>callBinding</code> - description of call</dd> |
| <dd><code>throwOnFailure</code> - whether to throw an exception if check fails |
| (otherwise returns false in that case)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether check succeeded</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="checkOperandCount(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.type.SqlOperandTypeChecker,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>checkOperandCount</h4> |
| <pre class="methodSignature">protected void checkOperandCount​(<a href="validate/SqlValidator.html" title="interface in org.apache.calcite.sql.validate">SqlValidator</a> validator, |
| <a href="type/SqlOperandTypeChecker.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeChecker</a> argType, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| </li> |
| </ul> |
| <a id="validRexOperands(int,org.apache.calcite.util.Litmus)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>validRexOperands</h4> |
| <pre class="methodSignature">public boolean validRexOperands​(int count, |
| <a href="../util/Litmus.html" title="interface in org.apache.calcite.util">Litmus</a> litmus)</pre> |
| <div class="block">Returns whether the given operands are valid. If not valid and |
| <code>fail</code>, throws an assertion error. |
| |
| <p>Similar to <a href="#checkOperandCount(org.apache.calcite.sql.validate.SqlValidator,org.apache.calcite.sql.type.SqlOperandTypeChecker,org.apache.calcite.sql.SqlCall)"><code>checkOperandCount(org.apache.calcite.sql.validate.SqlValidator, org.apache.calcite.sql.type.SqlOperandTypeChecker, org.apache.calcite.sql.SqlCall)</code></a>, but some operators may have |
| different valid operands in <a href="SqlNode.html" title="class in org.apache.calcite.sql"><code>SqlNode</code></a> and <code>RexNode</code> formats |
| (some examples are CAST and AND), and this method throws internal errors, |
| not user errors.</p></div> |
| </li> |
| </ul> |
| <a id="getSignatureTemplate(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSignatureTemplate</h4> |
| <pre class="methodSignature">public java.lang.String getSignatureTemplate​(int operandsCount)</pre> |
| <div class="block">Returns a template describing how the operator signature is to be built. |
| E.g for the binary + operator the template looks like "{1} {0} {2}" {0} |
| is the operator, subsequent numbers are operands.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>operandsCount</code> - is used with functions that can take a variable |
| number of operands</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>signature template, or null to indicate that a default template |
| will suffice</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getAllowedSignatures()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAllowedSignatures</h4> |
| <pre class="methodSignature">public final java.lang.String getAllowedSignatures()</pre> |
| <div class="block">Returns a string describing the expected operand types of a call, e.g. |
| "SUBSTR(VARCHAR, INTEGER, INTEGER)".</div> |
| </li> |
| </ul> |
| <a id="getAllowedSignatures(java.lang.String)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getAllowedSignatures</h4> |
| <pre class="methodSignature">public java.lang.String getAllowedSignatures​(java.lang.String opNameToUse)</pre> |
| <div class="block">Returns a string describing the expected operand types of a call, e.g. |
| "SUBSTRING(VARCHAR, INTEGER, INTEGER)" where the name (SUBSTRING in this |
| example) can be replaced by a specified name.</div> |
| </li> |
| </ul> |
| <a id="getOperandTypeInference()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getOperandTypeInference</h4> |
| <pre class="methodSignature">public <a href="type/SqlOperandTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlOperandTypeInference</a> getOperandTypeInference()</pre> |
| </li> |
| </ul> |
| <a id="isAggregator()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isAggregator</h4> |
| <pre class="methodSignature">public boolean isAggregator()</pre> |
| <div class="block">Returns whether this operator is an aggregate function. By default, |
| subclass type is used (an instance of SqlAggFunction is assumed to be an |
| aggregator; anything else is not). |
| |
| <p>Per SQL:2011, there are <dfn>aggregate functions</dfn> and |
| <dfn>window functions</dfn>. |
| Every aggregate function (e.g. SUM) is also a window function. |
| There are window functions that are not aggregate functions, e.g. RANK, |
| NTILE, LEAD, FIRST_VALUE.</p> |
| |
| <p>Collectively, aggregate and window functions are called <dfn>analytic |
| functions</dfn>. Despite its name, this method returns true for every |
| analytic function.</p></div> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>whether this operator is an analytic function (aggregate function |
| or window function)</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#requiresOrder()"><code>requiresOrder()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="requiresOver()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requiresOver</h4> |
| <pre class="methodSignature">public boolean requiresOver()</pre> |
| <div class="block">Returns whether this is a window function that requires an OVER clause. |
| |
| <p>For example, returns true for <code>RANK</code>, <code>DENSE_RANK</code> and |
| other ranking functions; returns false for <code>SUM</code>, <code>COUNT</code>, |
| <code>MIN</code>, <code>MAX</code>, <code>AVG</code> (they can be used as non-window |
| aggregate functions). |
| |
| <p>If <code>requiresOver</code> returns true, then <a href="#isAggregator()"><code>isAggregator()</code></a> must |
| also return true.</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#allowsFraming()"><code>allowsFraming()</code></a>, |
| <a href="#requiresOrder()"><code>requiresOrder()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="requiresOrder()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requiresOrder</h4> |
| <pre class="methodSignature">public boolean requiresOrder()</pre> |
| <div class="block">Returns whether this is a window function that requires ordering. |
| |
| <p>Per SQL:2011, 2, 6.10: "If <ntile function>, <lead or lag |
| function>, RANK or DENSE_RANK is specified, then the window ordering |
| clause shall be present."</p></div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#isAggregator()"><code>isAggregator()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="allowsFraming()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>allowsFraming</h4> |
| <pre class="methodSignature">public boolean allowsFraming()</pre> |
| <div class="block">Returns whether this is a window function that allows framing (i.e. a |
| ROWS or RANGE clause in the window specification).</div> |
| </li> |
| </ul> |
| <a id="isGroup()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isGroup</h4> |
| <pre class="methodSignature">public boolean isGroup()</pre> |
| <div class="block">Returns whether this is a group function. |
| |
| <p>Group functions can only appear in the GROUP BY clause. |
| |
| <p>Examples are <code>HOP</code>, <code>TUMBLE</code>, <code>SESSION</code>. |
| |
| <p>Group functions have auxiliary functions, e.g. <code>HOP_START</code>, but |
| these are not group functions.</div> |
| </li> |
| </ul> |
| <a id="isGroupAuxiliary()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isGroupAuxiliary</h4> |
| <pre class="methodSignature">public boolean isGroupAuxiliary()</pre> |
| <div class="block">Returns whether this is an group auxiliary function. |
| |
| <p>Examples are <code>HOP_START</code> and <code>HOP_END</code> (both auxiliary to |
| <code>HOP</code>).</div> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="#isGroup()"><code>isGroup()</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>acceptCall</h4> |
| <pre class="methodSignature">public <R> R acceptCall​(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a><R> visitor, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call)</pre> |
| <div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, visiting each operand of a call. Returns |
| null.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>visitor</code> - Visitor</dd> |
| <dd><code>call</code> - Call to visit</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="acceptCall(org.apache.calcite.sql.util.SqlVisitor,org.apache.calcite.sql.SqlCall,boolean,org.apache.calcite.sql.util.SqlBasicVisitor.ArgHandler)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>acceptCall</h4> |
| <pre class="methodSignature">public <R> void acceptCall​(<a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util">SqlVisitor</a><R> visitor, |
| <a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| boolean onlyExpressions, |
| <a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util">SqlBasicVisitor.ArgHandler</a><R> argHandler)</pre> |
| <div class="block">Accepts a <a href="util/SqlVisitor.html" title="interface in org.apache.calcite.sql.util"><code>SqlVisitor</code></a>, directing an |
| <a href="util/SqlBasicVisitor.ArgHandler.html" title="interface in org.apache.calcite.sql.util"><code>SqlBasicVisitor.ArgHandler</code></a> |
| to visit an operand of a call. |
| |
| <p>The argument handler allows fine control about how the operands are |
| visited, and how the results are combined.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>visitor</code> - Visitor</dd> |
| <dd><code>call</code> - Call to visit</dd> |
| <dd><code>onlyExpressions</code> - If true, ignores operands which are not |
| expressions. For example, in the call to the |
| <code>AS</code> operator</dd> |
| <dd><code>argHandler</code> - Called for each operand</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getReturnTypeInference()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getReturnTypeInference</h4> |
| <pre class="methodSignature">public <a href="type/SqlReturnTypeInference.html" title="interface in org.apache.calcite.sql.type">SqlReturnTypeInference</a> getReturnTypeInference()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the return type inference strategy for this operator, or null if |
| return type inference is implemented by a subclass override</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getMonotonicity(org.apache.calcite.sql.SqlCall,org.apache.calcite.sql.validate.SqlValidatorScope)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMonotonicity</h4> |
| <pre class="methodSignature">@Deprecated |
| public <a href="validate/SqlMonotonicity.html" title="enum in org.apache.calcite.sql.validate">SqlMonotonicity</a> getMonotonicity​(<a href="SqlCall.html" title="class in org.apache.calcite.sql">SqlCall</a> call, |
| <a href="validate/SqlValidatorScope.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorScope</a> scope)</pre> |
| <div class="deprecationBlock"><span class="deprecatedLabel">Deprecated.</span> |
| <div class="deprecationComment">Use <a href="#getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)"><code>getMonotonicity(SqlOperatorBinding)</code></a></div> |
| </div> |
| <div class="block">Returns whether this operator is monotonic. |
| |
| <p>Default implementation returns <a href="validate/SqlMonotonicity.html#NOT_MONOTONIC"><code>SqlMonotonicity.NOT_MONOTONIC</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - Call to this operator</dd> |
| <dd><code>scope</code> - Scope in which the call occurs</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getMonotonicity(org.apache.calcite.sql.SqlOperatorBinding)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getMonotonicity</h4> |
| <pre class="methodSignature">public <a href="validate/SqlMonotonicity.html" title="enum in org.apache.calcite.sql.validate">SqlMonotonicity</a> getMonotonicity​(<a href="SqlOperatorBinding.html" title="class in org.apache.calcite.sql">SqlOperatorBinding</a> call)</pre> |
| <div class="block">Returns whether a call to this operator is monotonic. |
| |
| <p>Default implementation returns <a href="validate/SqlMonotonicity.html#NOT_MONOTONIC"><code>SqlMonotonicity.NOT_MONOTONIC</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>call</code> - Call to this operator with particular arguments and information |
| about the monotonicity of the arguments</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isDeterministic()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDeterministic</h4> |
| <pre class="methodSignature">public boolean isDeterministic()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true iff a call to this operator is guaranteed to always return |
| the same result given the same operands; true is assumed by default</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="isDynamicFunction()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isDynamicFunction</h4> |
| <pre class="methodSignature">public boolean isDynamicFunction()</pre> |
| <dl> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>true iff it is unsafe to cache query plans referencing this |
| operator; false is assumed by default</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="requiresDecimalExpansion()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>requiresDecimalExpansion</h4> |
| <pre class="methodSignature">public boolean requiresDecimalExpansion()</pre> |
| <div class="block">Method to check if call requires expansion when it has decimal operands. |
| The default implementation is to return true.</div> |
| </li> |
| </ul> |
| <a id="argumentMustBeScalar(int)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>argumentMustBeScalar</h4> |
| <pre class="methodSignature">public boolean argumentMustBeScalar​(int ordinal)</pre> |
| <div class="block">Returns whether the <code>ordinal</code>th argument to this operator must |
| be scalar (as opposed to a query). |
| |
| <p>If true (the default), the validator will attempt to convert the |
| argument into a scalar sub-query, which must have one column and return at |
| most one row. |
| |
| <p>Operators such as <code>SELECT</code> and <code>EXISTS</code> override |
| this method.</div> |
| </li> |
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