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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.calcite.rel.hint</a></div> |
| <h1 title="Class HintStrategy" class="title">Class HintStrategy</h1> |
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| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">java.lang.Object</a> |
| <div class="inheritance">org.apache.calcite.rel.hint.HintStrategy</div> |
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| <section class="description"> |
| <hr> |
| <pre>public class <span class="typeNameLabel">HintStrategy</span> |
| extends <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></pre> |
| <div class="block">Represents a hint strategy entry of <a href="HintStrategyTable.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategyTable</code></a>. |
| |
| <p>A <code>HintStrategy</code> defines: |
| |
| <ul> |
| <li><a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint"><code>HintPredicate</code></a>: tests whether a hint should apply to |
| a relational expression;</li> |
| <li><a href="HintOptionChecker.html" title="interface in org.apache.calcite.rel.hint"><code>HintOptionChecker</code></a>: validates the hint options;</li> |
| <li><code>excludedRules</code>: rules to exclude when a relational expression |
| is going to apply a planner rule;</li> |
| <li><code>converterRules</code>: fallback rules to apply when there are |
| no proper implementations after excluding the <code>excludedRules</code>.</li> |
| </ul> |
| |
| <p>The <a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint"><code>HintPredicate</code></a> is required, all the other items are optional. |
| |
| <p><a href="HintStrategy.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategy</code></a> is immutable.</div> |
| </section> |
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| <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> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="HintStrategy.Builder.html" title="class in org.apache.calcite.rel.hint">HintStrategy.Builder</a></span></code></th> |
| <td class="colLast"> |
| <div class="block">Builder for <a href="HintStrategy.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategy</code></a>.</div> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
| <th class="colSecond" scope="col">Field</th> |
| <th class="colLast" scope="col">Description</th> |
| </tr> |
| </thead> |
| <tbody> |
| <tr class="altColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableSet<<a href="../convert/ConverterRule.html" title="class in org.apache.calcite.rel.convert">ConverterRule</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#converterRules">converterRules</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableSet<<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#excludedRules">excludedRules</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>@Nullable <a href="HintOptionChecker.html" title="interface in org.apache.calcite.rel.hint">HintOptionChecker</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hintOptionChecker">hintOptionChecker</a></span></code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code><a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint">HintPredicate</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#predicate">predicate</a></span></code></th> |
| <td class="colLast"> </td> |
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| <td class="colFirst"><code>static <a href="HintStrategy.Builder.html" title="class in org.apache.calcite.rel.hint">HintStrategy.Builder</a></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#builder(org.apache.calcite.rel.hint.HintPredicate)">builder</a></span>​(<a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint">HintPredicate</a> hintPredicate)</code></th> |
| <td class="colLast"> |
| <div class="block">Returns a <a href="HintStrategy.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategy</code></a> builder with given hint predicate.</div> |
| </td> |
| </tr> |
| </tbody> |
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| <div class="inheritedList"> |
| <h3>Methods inherited from class java.lang.<a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang" class="externalLink">Object</a></h3> |
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| <!-- --> |
| </a><code><a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang" class="externalLink">clone</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang" class="externalLink">equals</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang" class="externalLink">finalize</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang" class="externalLink">getClass</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang" class="externalLink">hashCode</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang" class="externalLink">notify</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang" class="externalLink">notifyAll</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang" class="externalLink">toString</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang" class="externalLink">wait</a>, <a href="https://docs.oracle.com/javase/9/docs/api/java/lang/Object.html?is-external=true#wait(long,int)" title="class or interface in java.lang" class="externalLink">wait</a></code></div> |
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| <h3><a id="predicate">predicate</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType"><a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint">HintPredicate</a></span> <span class="memberName">predicate</span></div> |
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| <h3><a id="hintOptionChecker">hintOptionChecker</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">@Nullable <a href="HintOptionChecker.html" title="interface in org.apache.calcite.rel.hint">HintOptionChecker</a></span> <span class="memberName">hintOptionChecker</span></div> |
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| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">com.google.common.collect.ImmutableSet<<a href="../../plan/RelOptRule.html" title="class in org.apache.calcite.plan">RelOptRule</a>></span> <span class="memberName">excludedRules</span></div> |
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| <h3><a id="converterRules">converterRules</a></h3> |
| <div class="memberSignature"><span class="modifiers">public final</span> <span class="returnType">com.google.common.collect.ImmutableSet<<a href="../convert/ConverterRule.html" title="class in org.apache.calcite.rel.convert">ConverterRule</a>></span> <span class="memberName">converterRules</span></div> |
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| <h3><a id="builder(org.apache.calcite.rel.hint.HintPredicate)">builder</a></h3> |
| <div class="memberSignature"><span class="modifiers">public static</span> <span class="returnType"><a href="HintStrategy.Builder.html" title="class in org.apache.calcite.rel.hint">HintStrategy.Builder</a></span> <span class="memberName">builder</span>​(<span class="arguments"><a href="HintPredicate.html" title="interface in org.apache.calcite.rel.hint">HintPredicate</a> hintPredicate)</span></div> |
| <div class="block">Returns a <a href="HintStrategy.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategy</code></a> builder with given hint predicate.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>hintPredicate</code> - hint predicate</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd><a href="HintStrategy.Builder.html" title="class in org.apache.calcite.rel.hint"><code>HintStrategy.Builder</code></a> instance</dd> |
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