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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.calcite.linq4j</a></div> |
| <h1 title="Class QueryProviderImpl" class="title">Class QueryProviderImpl</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance">org.apache.calcite.linq4j.QueryProviderImpl</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></dd> |
| </dl> |
| <dl class="notes"> |
| <dt>Direct Known Subclasses:</dt> |
| <dd><code><a href="../adapter/jdbc/JdbcQueryProvider.html" title="class in org.apache.calcite.adapter.jdbc">JdbcQueryProvider</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">QueryProviderImpl</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a> |
| implements <a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></span></div> |
| <div class="block">Partial implementation of <a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j"><code>QueryProvider</code></a>. |
| |
| <p>Derived class needs to implement <a href="QueryProvider.html#executeQuery(org.apache.calcite.linq4j.Queryable)"><code>QueryProvider.executeQuery(org.apache.calcite.linq4j.Queryable<T>)</code></a>.</p></div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <li> |
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| <h2>Nested Class Summary</h2> |
| <div class="caption"><span>Nested Classes</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static class </code></div> |
| <div class="col-second even-row-color"><code><a href="QueryProviderImpl.QueryableImpl.html" class="type-name-link" title="class in org.apache.calcite.linq4j">QueryProviderImpl.QueryableImpl</a><<a href="QueryProviderImpl.QueryableImpl.html" title="type parameter in QueryProviderImpl.QueryableImpl">T</a>></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Binds an expression to this query provider.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor-summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier</div> |
| <div class="table-header col-second">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>protected </code></div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E()" class="member-name-link">QueryProviderImpl</a>()</code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Creates a QueryProviderImpl.</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><T> <a href="Queryable.html" title="interface in org.apache.calcite.linq4j">Queryable</a><T></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)" class="member-name-link">createQuery</a><wbr>(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T> rowType)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Constructs a <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object that can evaluate the query |
| represented by a specified expression tree.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><T> <a href="Queryable.html" title="interface in org.apache.calcite.linq4j">Queryable</a><T></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)" class="member-name-link">createQuery</a><wbr>(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> rowType)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Constructs a <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object that can evaluate the query |
| represented by a specified expression tree.</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><T> T</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)" class="member-name-link">execute</a><wbr>(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T> type)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Executes the query represented by a specified expression tree.</div> |
| </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><T> T</code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)" class="member-name-link">execute</a><wbr>(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> type)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">Executes the query represented by a specified expression tree.</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-org.apache.calcite.linq4j.QueryProvider">Methods inherited from interface org.apache.calcite.linq4j.<a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></h3> |
| <code><a href="QueryProvider.html#executeQuery(org.apache.calcite.linq4j.Queryable)">executeQuery</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor-detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>()"> |
| <h3>QueryProviderImpl</h3> |
| <div class="member-signature"><span class="modifiers">protected</span> <span class="element-name">QueryProviderImpl</span>()</div> |
| <div class="block">Creates a QueryProviderImpl.</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)"> |
| <h3>createQuery</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="Queryable.html" title="interface in org.apache.calcite.linq4j">Queryable</a><T></span> <span class="element-name">createQuery</span><wbr><span class="parameters">(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T> rowType)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="QueryProvider.html#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)">QueryProvider</a></code></span></div> |
| <div class="block">Constructs a <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object that can evaluate the query |
| represented by a specified expression tree. |
| |
| <p>NOTE: The <a href="RawQueryable.html#getExpression()"><code>RawQueryable.getExpression()</code></a> |
| property of the returned <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object is equal to |
| <code>expression</code>.</p></div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="QueryProvider.html#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)">createQuery</a></code> in interface <code><a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></dd> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - Row type</dd> |
| <dt>Parameters:</dt> |
| <dd><code>expression</code> - Expression</dd> |
| <dd><code>rowType</code> - Row type</dd> |
| <dt>Returns:</dt> |
| <dd>Queryable</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)"> |
| <h3>createQuery</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="type-parameters"><T></span> <span class="return-type"><a href="Queryable.html" title="interface in org.apache.calcite.linq4j">Queryable</a><T></span> <span class="element-name">createQuery</span><wbr><span class="parameters">(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> rowType)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="QueryProvider.html#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)">QueryProvider</a></code></span></div> |
| <div class="block">Constructs a <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object that can evaluate the query |
| represented by a specified expression tree. The row type may contain |
| generic information.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="QueryProvider.html#createQuery(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)">createQuery</a></code> in interface <code><a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></dd> |
| <dt>Type Parameters:</dt> |
| <dd><code>T</code> - Row type</dd> |
| <dt>Parameters:</dt> |
| <dd><code>expression</code> - Expression</dd> |
| <dd><code>rowType</code> - Row type</dd> |
| <dt>Returns:</dt> |
| <dd>Queryable</dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="execute(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)"> |
| <h3>execute</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="type-parameters"><T></span> <span class="return-type">T</span> <span class="element-name">execute</span><wbr><span class="parameters">(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><T> type)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="QueryProvider.html#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)">QueryProvider</a></code></span></div> |
| <div class="block">Executes the query represented by a specified expression tree. |
| |
| <p>This method executes queries that return a single value |
| (instead of an enumerable sequence of values). Expression trees that |
| represent queries that return enumerable results are executed when the |
| <a href="Queryable.html" title="interface in org.apache.calcite.linq4j"><code>Queryable</code></a> object that contains the expression tree is |
| enumerated.</p> |
| |
| <p>The Queryable standard query operator methods that return singleton |
| results call <code>execute</code>. They pass it a |
| <a href="tree/MethodCallExpression.html" title="class in org.apache.calcite.linq4j.tree"><code>MethodCallExpression</code></a> |
| that represents a linq4j query.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="QueryProvider.html#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.Class)">execute</a></code> in interface <code><a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="execute(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)"> |
| <h3>execute</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="type-parameters"><T></span> <span class="return-type">T</span> <span class="element-name">execute</span><wbr><span class="parameters">(<a href="tree/Expression.html" title="class in org.apache.calcite.linq4j.tree">Expression</a> expression, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/reflect/Type.html" title="class or interface in java.lang.reflect" class="external-link">Type</a> type)</span></div> |
| <div class="block"><span class="descfrm-type-label">Description copied from interface: <code><a href="QueryProvider.html#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)">QueryProvider</a></code></span></div> |
| <div class="block">Executes the query represented by a specified expression tree. |
| The row type may contain type parameters.</div> |
| <dl class="notes"> |
| <dt>Specified by:</dt> |
| <dd><code><a href="QueryProvider.html#execute(org.apache.calcite.linq4j.tree.Expression,java.lang.reflect.Type)">execute</a></code> in interface <code><a href="QueryProvider.html" title="interface in org.apache.calcite.linq4j">QueryProvider</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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