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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.type</a></div> |
| <h2 title="Class RelDataTypeFactoryImpl" class="title">Class RelDataTypeFactoryImpl</h2> |
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| <ul class="inheritance"> |
| <li>java.lang.Object</li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.type.RelDataTypeFactoryImpl</li> |
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| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| </dl> |
| <dl> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="../../sql/type/SqlTypeFactoryImpl.html" title="class in org.apache.calcite.sql.type">SqlTypeFactoryImpl</a></code></dd> |
| </dl> |
| <hr> |
| <pre>public abstract class <span class="typeNameLabel">RelDataTypeFactoryImpl</span> |
| extends java.lang.Object |
| implements <a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></pre> |
| <div class="block">Abstract base for implementations of <a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type"><code>RelDataTypeFactory</code></a>.</div> |
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| <h3>Nested Class Summary</h3> |
| <table class="memberSummary"> |
| <caption><span>Nested Classes</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Class</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RelDataTypeFactoryImpl.JavaType.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl.JavaType</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Type which is based upon a Java class.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="RelDataTypeFactoryImpl.Key.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactoryImpl.Key</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Key to the data type cache.</div> |
| </td> |
| </tr> |
| </table> |
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| </a> |
| <h3>Nested classes/interfaces inherited from interface org.apache.calcite.rel.type.<a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></h3> |
| <code><a href="RelDataTypeFactory.Builder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.Builder</a>, <a href="RelDataTypeFactory.FieldInfo.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfo</a>, <a href="RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfoBuilder</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- =========== 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>private static com.google.common.cache.LoadingCache<java.lang.Object,​<a href="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="#CACHE">CACHE</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Global cache.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>private static java.util.Map<java.lang.Class,​<a href="RelDataTypeFamily.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFamily</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#CLASS_FAMILIES">CLASS_FAMILIES</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected <a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#typeSystem">typeSystem</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| </section> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| <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(org.apache.calcite.rel.type.RelDataTypeSystem)">RelDataTypeFactoryImpl</a></span>​(<a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a> typeSystem)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type factory.</div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
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| <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="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete 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>private static void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#addFields(org.apache.calcite.rel.type.RelDataType,java.util.List)">addFields</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| java.util.List<<a href="RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>> fieldList)</code></th> |
| <td class="colLast"> |
| <div class="block">Adds all fields in <code>type</code> to <code>fieldList</code>, |
| renumbering the fields (if necessary) to ensure that their index |
| matches their position in the list.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfoBuilder</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#builder()">builder</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a |
| <a href="RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type"><code>RelDataTypeFactory.FieldInfoBuilder</code></a>.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>protected <a href="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="#canonize(org.apache.calcite.rel.type.RelDataType)">canonize</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</code></th> |
| <td class="colLast"> |
| <div class="block">Registers a type, or returns the existing type if it is already |
| registered.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="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="#canonize(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)">canonize</a></span>​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<java.lang.String> names, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>protected <a href="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="#canonize(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List,boolean)">canonize</a></span>​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<java.lang.String> names, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types, |
| boolean nullable)</code></th> |
| <td class="colLast"> |
| <div class="block">Looks up a type using a temporary key, and if not present, creates |
| a permanent key and type.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>private <a href="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="#copyRecordType(org.apache.calcite.rel.type.RelRecordType,boolean,boolean)">copyRecordType</a></span>​(<a href="RelRecordType.html" title="class in org.apache.calcite.rel.type">RelRecordType</a> type, |
| boolean ignoreNullable, |
| boolean nullable)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>private <a href="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="#copySimpleType(org.apache.calcite.rel.type.RelDataType,boolean)">copySimpleType</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| boolean nullable)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code><a href="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="#copyType(org.apache.calcite.rel.type.RelDataType)">copyType</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</code></th> |
| <td class="colLast"> |
| <div class="block">Duplicates a type, making a deep copy.</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createDecimalProduct(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">createDecimalProduct</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</code></th> |
| <td class="colLast"> |
| <div class="block">Infers the return type of a decimal multiplication.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="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="#createDecimalQuotient(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">createDecimalQuotient</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</code></th> |
| <td class="colLast"> |
| <div class="block">Rules: |
| |
| |
| Let p1, s1 be the precision and scale of the first operand |
| Let p2, s2 be the precision and scale of the second operand |
| Let p, s be the precision and scale of the result |
| Let d be the number of whole digits in the result |
| Then the result type is a decimal with: |
| |
| d = p1 - s1 + s2 |
| s < max(6, s1 + p2 + 1) |
| p = d + s |
| |
| |
| p and s are capped at their maximum values |
| </div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createJavaType(java.lang.Class)">createJavaType</a></span>​(java.lang.Class clazz)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that corresponds to a Java class.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="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="#createJoinType(org.apache.calcite.rel.type.RelDataType...)">createJoinType</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>... types)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a cartesian product type.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createStructType(java.util.List)">createStructType</a></span>​(java.util.List<? extends java.util.Map.Entry<java.lang.String,​<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>>> fieldList)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that represents a structured collection of fieldList, |
| obtaining the field information from a list of (name, type) pairs.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code>private <a href="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="#createStructType(java.util.List,boolean)">createStructType</a></span>​(java.util.List<? extends java.util.Map.Entry<java.lang.String,​<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>>> fieldList, |
| boolean nullable)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createStructType(java.util.List,java.util.List)">createStructType</a></span>​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that represents a structured collection of fields.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="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="#createStructType(org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfo)">createStructType</a></span>​(<a href="RelDataTypeFactory.FieldInfo.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfo</a> fieldInfo)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that represents a structured collection of fields, |
| obtaining the field information via a callback.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)">createStructType</a></span>​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that represents a structured collection of fields, given |
| lists of the names and types of the fields.</div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>private <a href="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="#createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List,boolean)">createStructType</a></span>​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList, |
| boolean nullable)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code><a href="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="#createTypeWithNullability(org.apache.calcite.rel.type.RelDataType,boolean)">createTypeWithNullability</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| boolean nullable)</code></th> |
| <td class="colLast"> |
| <div class="block">Creates a type that is the same as another type but with possibly |
| different nullability.</div> |
| </td> |
| </tr> |
| <tr id="i19" class="rowColor"> |
| <td class="colFirst"><code>private java.util.List<<a href="RelDataTypeFieldImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFieldImpl</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#fieldsOf(java.lang.Class)">fieldsOf</a></span>​(java.lang.Class clazz)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i20" class="altColor"> |
| <td class="colFirst"><code>java.nio.charset.Charset</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getDefaultCharset()">getDefaultCharset</a></span>()</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i21" class="rowColor"> |
| <td class="colFirst"><code>private static java.util.List<<a href="RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getFieldList(java.util.List)">getFieldList</a></span>​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list of the fields in a list of types.</div> |
| </td> |
| </tr> |
| <tr id="i22" class="altColor"> |
| <td class="colFirst"><code>private static void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTypeList(com.google.common.collect.ImmutableList,java.util.List)">getTypeList</a></span>​(com.google.common.collect.ImmutableList<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> inTypes, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> flatTypes)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a list of all atomic types in a list.</div> |
| </td> |
| </tr> |
| <tr id="i23" class="rowColor"> |
| <td class="colFirst"><code><a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#getTypeSystem()">getTypeSystem</a></span>()</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the type system.</div> |
| </td> |
| </tr> |
| <tr id="i24" class="altColor"> |
| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#isJavaType(org.apache.calcite.rel.type.RelDataType)">isJavaType</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> t)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i25" class="rowColor"> |
| <td class="colFirst"><code>private static <a href="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="#keyToType(java.lang.Object)">keyToType</a></span>​(java.lang.Object k)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i26" class="altColor"> |
| <td class="colFirst"><code><a href="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="#leastRestrictive(java.util.List)">leastRestrictive</a></span>​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns the most general of a set of types (that is, one type to which |
| they can all be cast), or null if conversion is not possible.</div> |
| </td> |
| </tr> |
| <tr id="i27" class="rowColor"> |
| <td class="colFirst"><code>protected <a href="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="#leastRestrictiveStructuredType(java.util.List)">leastRestrictiveStructuredType</a></span>​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i28" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#useDoubleMultiplication(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">useDoubleMultiplication</a></span>​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns whether a decimal multiplication should be implemented by casting |
| arguments to double values.</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, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a id="methods.inherited.from.class.org.apache.calcite.rel.type.RelDataTypeFactory"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from interface org.apache.calcite.rel.type.<a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></h3> |
| <code><a href="RelDataTypeFactory.html#createArrayType(org.apache.calcite.rel.type.RelDataType,long)">createArrayType</a>, <a href="RelDataTypeFactory.html#createMapType(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">createMapType</a>, <a href="RelDataTypeFactory.html#createMultisetType(org.apache.calcite.rel.type.RelDataType,long)">createMultisetType</a>, <a href="RelDataTypeFactory.html#createSqlIntervalType(org.apache.calcite.sql.SqlIntervalQualifier)">createSqlIntervalType</a>, <a href="RelDataTypeFactory.html#createSqlType(org.apache.calcite.sql.type.SqlTypeName)">createSqlType</a>, <a href="RelDataTypeFactory.html#createSqlType(org.apache.calcite.sql.type.SqlTypeName,int)">createSqlType</a>, <a href="RelDataTypeFactory.html#createSqlType(org.apache.calcite.sql.type.SqlTypeName,int,int)">createSqlType</a>, <a href="RelDataTypeFactory.html#createTypeWithCharsetAndCollation(org.apache.calcite.rel.type.RelDataType,java.nio.charset.Charset,org.apache.calcite.sql.SqlCollation)">createTypeWithCharsetAndCollation</a>, <a href="RelDataTypeFactory.html#createUnknownType()">createUnknownType</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="field.detail"> |
| <!-- --> |
| </a> |
| <h3>Field Detail</h3> |
| <a id="CACHE"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>CACHE</h4> |
| <pre>private static final com.google.common.cache.LoadingCache<java.lang.Object,​<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> CACHE</pre> |
| <div class="block">Global cache. Uses soft values to allow GC.</div> |
| </li> |
| </ul> |
| <a id="CLASS_FAMILIES"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>CLASS_FAMILIES</h4> |
| <pre>private static final java.util.Map<java.lang.Class,​<a href="RelDataTypeFamily.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFamily</a>> CLASS_FAMILIES</pre> |
| </li> |
| </ul> |
| <a id="typeSystem"> |
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| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>typeSystem</h4> |
| <pre>protected final <a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a> typeSystem</pre> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <section role="region"> |
| <ul class="blockList"> |
| <li class="blockList"><a id="constructor.detail"> |
| <!-- --> |
| </a> |
| <h3>Constructor Detail</h3> |
| <a id="<init>(org.apache.calcite.rel.type.RelDataTypeSystem)"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>RelDataTypeFactoryImpl</h4> |
| <pre>protected RelDataTypeFactoryImpl​(<a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a> typeSystem)</pre> |
| <div class="block">Creates a type factory.</div> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| <!-- ============ METHOD DETAIL ========== --> |
| <section role="region"> |
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| <li class="blockList"><a id="method.detail"> |
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| </a> |
| <h3>Method Detail</h3> |
| <a id="keyToType(java.lang.Object)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>keyToType</h4> |
| <pre class="methodSignature">private static <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> keyToType​(@Nonnull |
| java.lang.Object k)</pre> |
| </li> |
| </ul> |
| <a id="getTypeSystem()"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTypeSystem</h4> |
| <pre class="methodSignature">public <a href="RelDataTypeSystem.html" title="interface in org.apache.calcite.rel.type">RelDataTypeSystem</a> getTypeSystem()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#getTypeSystem()">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Returns the type system.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#getTypeSystem()">getTypeSystem</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>Type system</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createJavaType(java.lang.Class)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createJavaType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createJavaType​(java.lang.Class clazz)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createJavaType(java.lang.Class)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that corresponds to a Java class.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createJavaType(java.lang.Class)">createJavaType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>clazz</code> - the Java class used to define the type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical Java type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createJoinType(org.apache.calcite.rel.type.RelDataType...)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createJoinType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createJoinType​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>... types)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createJoinType(org.apache.calcite.rel.type.RelDataType...)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a cartesian product type.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createJoinType(org.apache.calcite.rel.type.RelDataType...)">createJoinType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>types</code> - array of types to be joined</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical join type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createStructType(java.util.List,java.util.List)"> |
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| </a> |
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| <h4>createStructType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createStructType(java.util.List,java.util.List)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that represents a structured collection of fields. |
| Shorthand for <code>createStructType(StructKind.FULLY_QUALIFIED, typeList, |
| fieldNameList)</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createStructType(java.util.List,java.util.List)">createStructType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>createStructType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that represents a structured collection of fields, given |
| lists of the names and types of the fields.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)">createStructType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>kind</code> - Name resolution policy</dd> |
| <dd><code>typeList</code> - types of the fields</dd> |
| <dd><code>fieldNameList</code> - names of the fields</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical struct type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createStructType(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List,boolean)"> |
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| </a> |
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| <h4>createStructType</h4> |
| <pre class="methodSignature">private <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> typeList, |
| java.util.List<java.lang.String> fieldNameList, |
| boolean nullable)</pre> |
| </li> |
| </ul> |
| <a id="createStructType(org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfo)"> |
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| <h4>createStructType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(<a href="RelDataTypeFactory.FieldInfo.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfo</a> fieldInfo)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createStructType(org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfo)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that represents a structured collection of fields, |
| obtaining the field information via a callback.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createStructType(org.apache.calcite.rel.type.RelDataTypeFactory.FieldInfo)">createStructType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fieldInfo</code> - callback for field information</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical struct type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createStructType(java.util.List)"> |
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| </a> |
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| <h4>createStructType</h4> |
| <pre class="methodSignature">public final <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(java.util.List<? extends java.util.Map.Entry<java.lang.String,​<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>>> fieldList)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createStructType(java.util.List)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that represents a structured collection of fieldList, |
| obtaining the field information from a list of (name, type) pairs.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createStructType(java.util.List)">createStructType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fieldList</code> - List of (name, type) pairs</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical struct type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createStructType(java.util.List,boolean)"> |
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| <li class="blockList"> |
| <h4>createStructType</h4> |
| <pre class="methodSignature">private <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createStructType​(java.util.List<? extends java.util.Map.Entry<java.lang.String,​<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>>> fieldList, |
| boolean nullable)</pre> |
| </li> |
| </ul> |
| <a id="leastRestrictive(java.util.List)"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>leastRestrictive</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> leastRestrictive​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#leastRestrictive(java.util.List)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Returns the most general of a set of types (that is, one type to which |
| they can all be cast), or null if conversion is not possible. The result |
| may be a new type that is less restrictive than any of the input types, |
| e.g. <code>leastRestrictive(INT, NUMERIC(3, 2))</code> could be |
| <code>NUMERIC(12, 2)</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#leastRestrictive(java.util.List)">leastRestrictive</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>types</code> - input types to be combined using union (not null, not empty)</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>canonical union type descriptor</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="leastRestrictiveStructuredType(java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>leastRestrictiveStructuredType</h4> |
| <pre class="methodSignature">protected <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> leastRestrictiveStructuredType​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</pre> |
| </li> |
| </ul> |
| <a id="copySimpleType(org.apache.calcite.rel.type.RelDataType,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>copySimpleType</h4> |
| <pre class="methodSignature">private <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> copySimpleType​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| boolean nullable)</pre> |
| </li> |
| </ul> |
| <a id="copyRecordType(org.apache.calcite.rel.type.RelRecordType,boolean,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>copyRecordType</h4> |
| <pre class="methodSignature">private <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> copyRecordType​(<a href="RelRecordType.html" title="class in org.apache.calcite.rel.type">RelRecordType</a> type, |
| boolean ignoreNullable, |
| boolean nullable)</pre> |
| </li> |
| </ul> |
| <a id="copyType(org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>copyType</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> copyType​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#copyType(org.apache.calcite.rel.type.RelDataType)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Duplicates a type, making a deep copy. Normally, this is a no-op, since |
| canonical type objects are returned. However, it is useful when copying a |
| type from one factory to another.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#copyType(org.apache.calcite.rel.type.RelDataType)">copyType</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - input type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>output type, a new object equivalent to input type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createTypeWithNullability(org.apache.calcite.rel.type.RelDataType,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createTypeWithNullability</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createTypeWithNullability​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| boolean nullable)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#createTypeWithNullability(org.apache.calcite.rel.type.RelDataType,boolean)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a type that is the same as another type but with possibly |
| different nullability. The output type may be identical to the input |
| type. For type systems without a concept of nullability, the return value |
| is always the same as the input.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createTypeWithNullability(org.apache.calcite.rel.type.RelDataType,boolean)">createTypeWithNullability</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type</code> - input type</dd> |
| <dd><code>nullable</code> - true to request a nullable type; false to request a NOT |
| NULL type</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>output type, same as input type except with specified nullability</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="canonize(org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>canonize</h4> |
| <pre class="methodSignature">protected <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> canonize​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type)</pre> |
| <div class="block">Registers a type, or returns the existing type if it is already |
| registered.</div> |
| <dl> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.NullPointerException</code> - if type is null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="canonize(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List,boolean)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>canonize</h4> |
| <pre class="methodSignature">protected <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> canonize​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<java.lang.String> names, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types, |
| boolean nullable)</pre> |
| <div class="block">Looks up a type using a temporary key, and if not present, creates |
| a permanent key and type. |
| |
| <p>This approach allows us to use a cheap temporary key. A permanent |
| key is more expensive, because it must be immutable and not hold |
| references into other data structures.</p></div> |
| </li> |
| </ul> |
| <a id="canonize(org.apache.calcite.rel.type.StructKind,java.util.List,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>canonize</h4> |
| <pre class="methodSignature">protected <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> canonize​(<a href="StructKind.html" title="enum in org.apache.calcite.rel.type">StructKind</a> kind, |
| java.util.List<java.lang.String> names, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</pre> |
| </li> |
| </ul> |
| <a id="getFieldList(java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getFieldList</h4> |
| <pre class="methodSignature">private static java.util.List<<a href="RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>> getFieldList​(java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> types)</pre> |
| <div class="block">Returns a list of the fields in a list of types.</div> |
| </li> |
| </ul> |
| <a id="getTypeList(com.google.common.collect.ImmutableList,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getTypeList</h4> |
| <pre class="methodSignature">private static void getTypeList​(com.google.common.collect.ImmutableList<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> inTypes, |
| java.util.List<<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a>> flatTypes)</pre> |
| <div class="block">Returns a list of all atomic types in a list.</div> |
| </li> |
| </ul> |
| <a id="addFields(org.apache.calcite.rel.type.RelDataType,java.util.List)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>addFields</h4> |
| <pre class="methodSignature">private static void addFields​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type, |
| java.util.List<<a href="RelDataTypeField.html" title="interface in org.apache.calcite.rel.type">RelDataTypeField</a>> fieldList)</pre> |
| <div class="block">Adds all fields in <code>type</code> to <code>fieldList</code>, |
| renumbering the fields (if necessary) to ensure that their index |
| matches their position in the list.</div> |
| </li> |
| </ul> |
| <a id="isJavaType(org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>isJavaType</h4> |
| <pre class="methodSignature">public static boolean isJavaType​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> t)</pre> |
| </li> |
| </ul> |
| <a id="fieldsOf(java.lang.Class)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>fieldsOf</h4> |
| <pre class="methodSignature">private java.util.List<<a href="RelDataTypeFieldImpl.html" title="class in org.apache.calcite.rel.type">RelDataTypeFieldImpl</a>> fieldsOf​(java.lang.Class clazz)</pre> |
| </li> |
| </ul> |
| <a id="createDecimalProduct(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createDecimalProduct</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createDecimalProduct​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</pre> |
| <div class="block">Infers the return type of a decimal multiplication. Decimal |
| multiplication involves at least one decimal operand and requires both |
| operands to have exact numeric types. |
| |
| <p>Implement RelDataTypeFactory with SQL 2003 compliant behavior. Let p1, |
| s1 be the precision and scale of the first operand Let p2, s2 be the |
| precision and scale of the second operand Let p, s be the precision and |
| scale of the result, Then the result type is a decimal with: |
| |
| <ul> |
| <li>p = p1 + p2</li> |
| <li>s = s1 + s2</li> |
| </ul> |
| |
| <p>p and s are capped at their maximum values</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createDecimalProduct(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">createDecimalProduct</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type1</code> - type of the first operand</dd> |
| <dd><code>type2</code> - type of the second operand</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the result type for a decimal multiplication, or null if decimal |
| multiplication should not be applied to the operands.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../util/Glossary.html#SQL2003"><code>SQL:2003 Part 2 Section 6.26</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="useDoubleMultiplication(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>useDoubleMultiplication</h4> |
| <pre class="methodSignature">public boolean useDoubleMultiplication​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#useDoubleMultiplication(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Returns whether a decimal multiplication should be implemented by casting |
| arguments to double values. |
| |
| <p>Pre-condition: <code>createDecimalProduct(type1, type2) != null</code></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#useDoubleMultiplication(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">useDoubleMultiplication</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="createDecimalQuotient(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>createDecimalQuotient</h4> |
| <pre class="methodSignature">public <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> createDecimalQuotient​(<a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type1, |
| <a href="RelDataType.html" title="interface in org.apache.calcite.rel.type">RelDataType</a> type2)</pre> |
| <div class="block">Rules: |
| |
| <ul> |
| <li>Let p1, s1 be the precision and scale of the first operand |
| <li>Let p2, s2 be the precision and scale of the second operand |
| <li>Let p, s be the precision and scale of the result |
| <li>Let d be the number of whole digits in the result |
| <li>Then the result type is a decimal with: |
| <ul> |
| <li>d = p1 - s1 + s2</li> |
| <li>s < max(6, s1 + p2 + 1)</li> |
| <li>p = d + s</li> |
| </ul> |
| </li> |
| <li>p and s are capped at their maximum values</li> |
| </ul></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#createDecimalQuotient(org.apache.calcite.rel.type.RelDataType,org.apache.calcite.rel.type.RelDataType)">createDecimalQuotient</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>type1</code> - type of the first operand</dd> |
| <dd><code>type2</code> - type of the second operand</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the result type for a decimal division, or null if decimal |
| division should not be applied to the operands.</dd> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../util/Glossary.html#SQL2003"><code>SQL:2003 Part 2 Section 6.26</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="getDefaultCharset()"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getDefaultCharset</h4> |
| <pre class="methodSignature">public java.nio.charset.Charset getDefaultCharset()</pre> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#getDefaultCharset()">getDefaultCharset</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the default <code>Charset</code> for string types</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="builder()"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>builder</h4> |
| <pre class="methodSignature">public <a href="RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type">RelDataTypeFactory.FieldInfoBuilder</a> builder()</pre> |
| <div class="block"><span class="descfrmTypeLabel">Description copied from interface: <code><a href="RelDataTypeFactory.html#builder()">RelDataTypeFactory</a></code></span></div> |
| <div class="block">Creates a |
| <a href="RelDataTypeFactory.FieldInfoBuilder.html" title="class in org.apache.calcite.rel.type"><code>RelDataTypeFactory.FieldInfoBuilder</code></a>. |
| But since <code>FieldInfoBuilder</code> is deprecated, we recommend that you use |
| its base class <a href="RelDataTypeFactory.Builder.html" title="class in org.apache.calcite.rel.type"><code>RelDataTypeFactory.Builder</code></a>, which is not deprecated.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">Specified by:</span></dt> |
| <dd><code><a href="RelDataTypeFactory.html#builder()">builder</a></code> in interface <code><a href="RelDataTypeFactory.html" title="interface in org.apache.calcite.rel.type">RelDataTypeFactory</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </div> |
| </div> |
| </main> |
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