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| <li><a href="../../../../../org/apache/calcite/rel/core/Minus.html" title="org.apache.calcite.rel.core中的类"><span class="typeNameLink">上一个类</span></a></li> |
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| <ul class="subNavList"> |
| <li>概要: </li> |
| <li><a href="#nested.class.summary">嵌套</a> | </li> |
| <li><a href="#field.summary">字段</a> | </li> |
| <li><a href="#constructor.summary">构造器</a> | </li> |
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| <!-- ======== START OF CLASS DATA ======== --> |
| <div class="header"> |
| <div class="subTitle">org.apache.calcite.rel.core</div> |
| <h2 title="类 Project" class="title">类 Project</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">java.lang.Object</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">org.apache.calcite.rel.AbstractRelNode</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li><a href="../../../../../org/apache/calcite/rel/SingleRel.html" title="org.apache.calcite.rel中的类">org.apache.calcite.rel.SingleRel</a></li> |
| <li> |
| <ul class="inheritance"> |
| <li>org.apache.calcite.rel.core.Project</li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <dl> |
| <dt>所有已实现的接口:</dt> |
| <dd><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Cloneable.html?is-external=true" title="java.lang中的类或接口">Cloneable</a>, <a href="../../../../../org/apache/calcite/plan/RelOptNode.html" title="org.apache.calcite.plan中的接口">RelOptNode</a>, <a href="../../../../../org/apache/calcite/rel/hint/Hintable.html" title="org.apache.calcite.rel.hint中的接口">Hintable</a>, <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></dd> |
| </dl> |
| <dl> |
| <dt>直接已知子类:</dt> |
| <dd><a href="../../../../../org/apache/calcite/interpreter/Bindables.BindableProject.html" title="org.apache.calcite.interpreter中的类">Bindables.BindableProject</a>, <a href="../../../../../org/apache/calcite/adapter/cassandra/CassandraProject.html" title="org.apache.calcite.adapter.cassandra中的类">CassandraProject</a>, <a href="../../../../../org/apache/calcite/adapter/elasticsearch/ElasticsearchProject.html" title="org.apache.calcite.adapter.elasticsearch中的类">ElasticsearchProject</a>, <a href="../../../../../org/apache/calcite/adapter/enumerable/EnumerableProject.html" title="org.apache.calcite.adapter.enumerable中的类">EnumerableProject</a>, <a href="../../../../../org/apache/calcite/adapter/geode/rel/GeodeProject.html" title="org.apache.calcite.adapter.geode.rel中的类">GeodeProject</a>, <a href="../../../../../org/apache/calcite/adapter/jdbc/JdbcRules.JdbcProject.html" title="org.apache.calcite.adapter.jdbc中的类">JdbcRules.JdbcProject</a>, <a href="../../../../../org/apache/calcite/rel/logical/LogicalProject.html" title="org.apache.calcite.rel.logical中的类">LogicalProject</a>, <a href="../../../../../org/apache/calcite/adapter/mongodb/MongoProject.html" title="org.apache.calcite.adapter.mongodb中的类">MongoProject</a>, <a href="../../../../../org/apache/calcite/adapter/pig/PigProject.html" title="org.apache.calcite.adapter.pig中的类">PigProject</a></dd> |
| </dl> |
| <hr> |
| <br> |
| <pre>public abstract class <span class="typeNameLabel">Project</span> |
| extends <a href="../../../../../org/apache/calcite/rel/SingleRel.html" title="org.apache.calcite.rel中的类">SingleRel</a> |
| implements <a href="../../../../../org/apache/calcite/rel/hint/Hintable.html" title="org.apache.calcite.rel.hint中的接口">Hintable</a></pre> |
| <div class="block">Relational expression that computes a set of |
| 'select expressions' from its input relational expression.</div> |
| <dl> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../../org/apache/calcite/rel/logical/LogicalProject.html" title="org.apache.calcite.rel.logical中的类"><code>LogicalProject</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.class.summary"> |
| <!-- --> |
| </a> |
| <h3>嵌套类概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="嵌套类概要表, 列表嵌套类和解释"> |
| <caption><span>嵌套类</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">类和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>static class </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.Flags.html" title="org.apache.calcite.rel.core中的类">Project.Flags</a></span></code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="nested.classes.inherited.from.class.org.apache.calcite.rel.RelNode"> |
| <!-- --> |
| </a> |
| <h3>从接口继承的嵌套类/接口 org.apache.calcite.rel.<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/RelNode.Context.html" title="org.apache.calcite.rel中的接口">RelNode.Context</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.summary"> |
| <!-- --> |
| </a> |
| <h3>字段概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="字段概要表, 列表字段和解释"> |
| <caption><span>字段</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">字段和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#exps">exps</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#hints">hints</a></span></code> </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.rel.SingleRel"> |
| <!-- --> |
| </a> |
| <h3>从类继承的字段 org.apache.calcite.rel.<a href="../../../../../org/apache/calcite/rel/SingleRel.html" title="org.apache.calcite.rel中的类">SingleRel</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/SingleRel.html#input">input</a></code></li> |
| </ul> |
| <ul class="blockList"> |
| <li class="blockList"><a name="fields.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>从类继承的字段 org.apache.calcite.rel.<a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#digest">digest</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#id">id</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#rowType">rowType</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#traitSet">traitSet</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="constructor.summary"> |
| <!-- --> |
| </a> |
| <h3>构造器概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="构造器概要表, 列表构造器和解释"> |
| <caption><span>构造器</span><span class="tabEnd"> </span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符</th> |
| <th class="colLast" scope="col">构造器和说明</th> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#Project-org.apache.calcite.rel.RelInput-">Project</a></span>(<a href="../../../../../org/apache/calcite/rel/RelInput.html" title="org.apache.calcite.rel中的接口">RelInput</a> input)</code> |
| <div class="block">Creates a Project by parsing serialized output.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-java.util.List-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-">Project</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>> hints, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</code> |
| <div class="block">Creates a Project.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-">Project</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>protected </code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-int-">Project</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType, |
| int flags)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>方法概要</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="方法概要表, 列表方法和解释"> |
| <caption><span id="t0" class="activeTableTab"><span>所有方法</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd"> </span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd"> </span></span><span id="t6" class="tableTab"><span><a href="javascript:show(32);">已过时的方法</a></span><span class="tabEnd"> </span></span></caption> |
| <tr> |
| <th class="colFirst" scope="col">限定符和类型</th> |
| <th class="colLast" scope="col">方法和说明</th> |
| </tr> |
| <tr id="i0" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#accept-org.apache.calcite.rex.RexShuttle-">accept</a></span>(<a href="../../../../../org/apache/calcite/rex/RexShuttle.html" title="org.apache.calcite.rex中的类">RexShuttle</a> shuttle)</code> |
| <div class="block">Accepts a visit from a shuttle.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/plan/RelOptCost.html" title="org.apache.calcite.plan中的接口">RelOptCost</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#computeSelfCost-org.apache.calcite.plan.RelOptPlanner-org.apache.calcite.rel.metadata.RelMetadataQuery-">computeSelfCost</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a> planner, |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="org.apache.calcite.rel.metadata中的类">RelMetadataQuery</a> mq)</code> |
| <div class="block">Returns the cost of this plan (not including children).</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#copy-org.apache.calcite.plan.RelTraitSet-java.util.List-">copy</a></span>(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a>> inputs)</code> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs.</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>abstract <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类">Project</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#copy-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-">copy</a></span>(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</code> |
| <div class="block">Copies a project.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类">Project</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#copy-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-int-">copy</a></span>(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType, |
| int flags)</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/RelWriter.html" title="org.apache.calcite.rel中的接口">RelWriter</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#explainTerms-org.apache.calcite.rel.RelWriter-">explainTerms</a></span>(<a href="../../../../../org/apache/calcite/rel/RelWriter.html" title="org.apache.calcite.rel中的接口">RelWriter</a> pw)</code> |
| <div class="block">Describes the inputs and attributes of this relational expression.</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getChildExps--">getChildExps</a></span>()</code> |
| <div class="block">Returns a list of this relational expression's child expressions.</div> |
| </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>int</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getFlags--">getFlags</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getHints--">getHints</a></span>()</code> |
| <div class="block">Returns the hints of this relational expressions as an immutable list.</div> |
| </td> |
| </tr> |
| <tr id="i9" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getMapping--">getMapping</a></span>()</code> |
| <div class="block">Returns a mapping, or null if this projection is not a mapping.</div> |
| </td> |
| </tr> |
| <tr id="i10" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getMapping-int-java.util.List-">getMapping</a></span>(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</code> |
| <div class="block">Returns a mapping of a set of project expressions.</div> |
| </td> |
| </tr> |
| <tr id="i11" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/util/Pair.html" title="org.apache.calcite.util中的类">Pair</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getNamedProjects--">getNamedProjects</a></span>()</code> |
| <div class="block">Returns a list of (expression, name) pairs.</div> |
| </td> |
| </tr> |
| <tr id="i12" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getPartialMapping-int-java.util.List-">getPartialMapping</a></span>(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</code> |
| <div class="block">Returns a partial mapping of a set of project expressions.</div> |
| </td> |
| </tr> |
| <tr id="i13" class="rowColor"> |
| <td class="colFirst"><code><a href="../../../../../org/apache/calcite/util/Permutation.html" title="org.apache.calcite.util中的类">Permutation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getPermutation--">getPermutation</a></span>()</code> |
| <div class="block">Returns a permutation, if this projection is merely a permutation of its |
| input fields; otherwise null.</div> |
| </td> |
| </tr> |
| <tr id="i14" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/util/Permutation.html" title="org.apache.calcite.util中的类">Permutation</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getPermutation-int-java.util.List-">getPermutation</a></span>(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</code> |
| <div class="block">Returns a permutation, if this projection is merely a permutation of its |
| input fields; otherwise null.</div> |
| </td> |
| </tr> |
| <tr id="i15" class="rowColor"> |
| <td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#getProjects--">getProjects</a></span>()</code> |
| <div class="block">Returns the project expressions.</div> |
| </td> |
| </tr> |
| <tr id="i16" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#isBoxed--">isBoxed</a></span>()</code> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </td> |
| </tr> |
| <tr id="i17" class="rowColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#isMapping--">isMapping</a></span>()</code> |
| <div class="block">Checks whether this is a functional mapping.</div> |
| </td> |
| </tr> |
| <tr id="i18" class="altColor"> |
| <td class="colFirst"><code>boolean</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/core/Project.html#isValid-org.apache.calcite.util.Litmus-org.apache.calcite.rel.RelNode.Context-">isValid</a></span>(<a href="../../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a> litmus, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.Context.html" title="org.apache.calcite.rel中的接口">RelNode.Context</a> context)</code> |
| <div class="block">Returns whether this relational expression is valid.</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.org.apache.calcite.rel.SingleRel"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 org.apache.calcite.rel.<a href="../../../../../org/apache/calcite/rel/SingleRel.html" title="org.apache.calcite.rel中的类">SingleRel</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/SingleRel.html#childrenAccept-org.apache.calcite.rel.RelVisitor-">childrenAccept</a>, <a href="../../../../../org/apache/calcite/rel/SingleRel.html#deriveRowType--">deriveRowType</a>, <a href="../../../../../org/apache/calcite/rel/SingleRel.html#estimateRowCount-org.apache.calcite.rel.metadata.RelMetadataQuery-">estimateRowCount</a>, <a href="../../../../../org/apache/calcite/rel/SingleRel.html#getInput--">getInput</a>, <a href="../../../../../org/apache/calcite/rel/SingleRel.html#getInputs--">getInputs</a>, <a href="../../../../../org/apache/calcite/rel/SingleRel.html#replaceInput-int-org.apache.calcite.rel.RelNode-">replaceInput</a></code></li> |
| </ul> |
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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.calcite.rel.AbstractRelNode"> |
| <!-- --> |
| </a> |
| <h3>从类继承的方法 org.apache.calcite.rel.<a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#accept-org.apache.calcite.rel.RelShuttle-">accept</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#collectVariablesSet-java.util.Set-">collectVariablesSet</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#collectVariablesUsed-java.util.Set-">collectVariablesUsed</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#computeDigest--">computeDigest</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#computeSelfCost-org.apache.calcite.plan.RelOptPlanner-">computeSelfCost</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#equals-java.lang.Object-">equals</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#explain-org.apache.calcite.rel.RelWriter-">explain</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getCluster--">getCluster</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getCollationList--">getCollationList</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getConvention--">getConvention</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getCorrelVariable--">getCorrelVariable</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getDescription--">getDescription</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getDigest--">getDigest</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getExpectedInputRowType-int-">getExpectedInputRowType</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getId--">getId</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getInput-int-">getInput</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getQuery--">getQuery</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getRelTypeName--">getRelTypeName</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getRows--">getRows</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getRowType--">getRowType</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getTable--">getTable</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getTraitSet--">getTraitSet</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getVariablesSet--">getVariablesSet</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getVariablesStopped--">getVariablesStopped</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#hashCode--">hashCode</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#isDistinct--">isDistinct</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#isKey-org.apache.calcite.util.ImmutableBitSet-">isKey</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#isValid-boolean-">isValid</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#metadata-java.lang.Class-org.apache.calcite.rel.metadata.RelMetadataQuery-">metadata</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#onRegister-org.apache.calcite.plan.RelOptPlanner-">onRegister</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#recomputeDigest--">recomputeDigest</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#register-org.apache.calcite.plan.RelOptPlanner-">register</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#sole-java.util.List-">sole</a>, <a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#toString--">toString</a></code></li> |
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| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
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| </a> |
| <h3>从类继承的方法 java.lang.<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="java.lang中的类或接口">Object</a></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="java.lang中的类或接口">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="java.lang中的类或接口">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="java.lang中的类或接口">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="java.lang中的类或接口">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="java.lang中的类或接口">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="java.lang中的类或接口">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="java.lang中的类或接口">wait</a></code></li> |
| </ul> |
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| <li class="blockList"><a name="methods.inherited.from.class.org.apache.calcite.rel.hint.Hintable"> |
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| </a> |
| <h3>从接口继承的方法 org.apache.calcite.rel.hint.<a href="../../../../../org/apache/calcite/rel/hint/Hintable.html" title="org.apache.calcite.rel.hint中的接口">Hintable</a></h3> |
| <code><a href="../../../../../org/apache/calcite/rel/hint/Hintable.html#attachHints-java.util.List-">attachHints</a>, <a href="../../../../../org/apache/calcite/rel/hint/Hintable.html#withHints-java.util.List-">withHints</a></code></li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
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| </a> |
| <h3>字段详细资料</h3> |
| <a name="exps"> |
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| <h4>exps</h4> |
| <pre>protected final com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> exps</pre> |
| </li> |
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| </a> |
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| <li class="blockList"> |
| <h4>hints</h4> |
| <pre>protected final com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>> hints</pre> |
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| <h3>构造器详细资料</h3> |
| <a name="Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-java.util.List-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-"> |
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| <h4>Project</h4> |
| <pre>protected Project(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>> hints, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</pre> |
| <div class="block">Creates a Project.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>cluster</code> - Cluster that this relational expression belongs to</dd> |
| <dd><code>traits</code> - Traits of this relational expression</dd> |
| <dd><code>hints</code> - Hints of this relation expression</dd> |
| <dd><code>input</code> - Input relational expression</dd> |
| <dd><code>projects</code> - List of expressions for the input columns</dd> |
| <dd><code>rowType</code> - Output row type</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-"> |
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| </a> |
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| <h4>Project</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| protected Project(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traits, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
| <a name="Project-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-int-"> |
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| <h4>Project</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| protected Project(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster, |
| <a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType, |
| int flags)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
| <a name="Project-org.apache.calcite.rel.RelInput-"> |
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| <h4>Project</h4> |
| <pre>protected Project(<a href="../../../../../org/apache/calcite/rel/RelInput.html" title="org.apache.calcite.rel中的接口">RelInput</a> input)</pre> |
| <div class="block">Creates a Project by parsing serialized output.</div> |
| </li> |
| </ul> |
| </li> |
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| <h3>方法详细资料</h3> |
| <a name="copy-org.apache.calcite.plan.RelTraitSet-java.util.List-"> |
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| <pre>public final <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> copy(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a>> inputs)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/RelNode.html#copy-org.apache.calcite.plan.RelTraitSet-java.util.List-">RelNode</a></code></span></div> |
| <div class="block">Creates a copy of this relational expression, perhaps changing traits and |
| inputs. |
| |
| <p>Sub-classes with other important attributes are encouraged to create |
| variants of this method with more parameters.</p></div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/RelNode.html#copy-org.apache.calcite.plan.RelTraitSet-java.util.List-">copy</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#copy-org.apache.calcite.plan.RelTraitSet-java.util.List-">copy</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>traitSet</code> - Trait set</dd> |
| <dd><code>inputs</code> - Inputs</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Copy of this relational expression, substituting traits and |
| inputs</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="copy-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-"> |
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| <pre>public abstract <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类">Project</a> copy(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType)</pre> |
| <div class="block">Copies a project.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>traitSet</code> - Traits</dd> |
| <dd><code>input</code> - Input</dd> |
| <dd><code>projects</code> - Project expressions</dd> |
| <dd><code>rowType</code> - Output row type</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>New <code>Project</code> if any parameter differs from the value of this |
| <code>Project</code>, or just <code>this</code> if all the parameters are |
| the same</dd> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../../org/apache/calcite/rel/core/Project.html#copy-org.apache.calcite.plan.RelTraitSet-java.util.List-"><code>copy(RelTraitSet, List)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="copy-org.apache.calcite.plan.RelTraitSet-org.apache.calcite.rel.RelNode-java.util.List-org.apache.calcite.rel.type.RelDataType-int-"> |
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| <h4>copy</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public <a href="../../../../../org/apache/calcite/rel/core/Project.html" title="org.apache.calcite.rel.core中的类">Project</a> copy(<a href="../../../../../org/apache/calcite/plan/RelTraitSet.html" title="org.apache.calcite.plan中的类">RelTraitSet</a> traitSet, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> input, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects, |
| <a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType, |
| int flags)</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
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| <h4>isBoxed</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public boolean isBoxed()</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
| <a name="getChildExps--"> |
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| <h4>getChildExps</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> getChildExps()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/RelNode.html#getChildExps--">RelNode</a></code></span></div> |
| <div class="block">Returns a list of this relational expression's child expressions. |
| (These are scalar expressions, and so do not include the relational |
| inputs that are returned by <a href="../../../../../org/apache/calcite/rel/RelNode.html#getInputs--"><code>RelNode.getInputs()</code></a>. |
| |
| <p>The caller should treat the list as unmodifiable; typical |
| implementations will return an immutable list. If there are no |
| child expressions, returns an empty list, not <code>null</code>.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/RelNode.html#getChildExps--">getChildExps</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#getChildExps--">getChildExps</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></code></dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>List of this relational expression's child expressions</dd> |
| <dt><span class="seeLabel">另请参阅:</span></dt> |
| <dd><a href="../../../../../org/apache/calcite/rel/RelNode.html#accept-org.apache.calcite.rex.RexShuttle-"><code>RelNode.accept(org.apache.calcite.rex.RexShuttle)</code></a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="accept-org.apache.calcite.rex.RexShuttle-"> |
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| <h4>accept</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a> accept(<a href="../../../../../org/apache/calcite/rex/RexShuttle.html" title="org.apache.calcite.rex中的类">RexShuttle</a> shuttle)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/RelNode.html#accept-org.apache.calcite.rex.RexShuttle-">RelNode</a></code></span></div> |
| <div class="block">Accepts a visit from a shuttle. If the shuttle updates expression, then |
| a copy of the relation should be created. This new relation might have |
| a different row-type.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/RelNode.html#accept-org.apache.calcite.rex.RexShuttle-">accept</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#accept-org.apache.calcite.rex.RexShuttle-">accept</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>shuttle</code> - Shuttle</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>A copy of this node incorporating changes made by the shuttle to |
| this node's children</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getProjects--"> |
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| <h4>getProjects</h4> |
| <pre>public <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> getProjects()</pre> |
| <div class="block">Returns the project expressions.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Project expressions</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getNamedProjects--"> |
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| </a> |
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| <h4>getNamedProjects</h4> |
| <pre>public final <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><<a href="../../../../../org/apache/calcite/util/Pair.html" title="org.apache.calcite.util中的类">Pair</a><<a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>>> getNamedProjects()</pre> |
| <div class="block">Returns a list of (expression, name) pairs. Convenient for various |
| transformations.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>List of (expression, name) pairs</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getHints--"> |
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| <h4>getHints</h4> |
| <pre>public com.google.common.collect.ImmutableList<<a href="../../../../../org/apache/calcite/rel/hint/RelHint.html" title="org.apache.calcite.rel.hint中的类">RelHint</a>> getHints()</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/hint/Hintable.html#getHints--">Hintable</a></code></span></div> |
| <div class="block">Returns the hints of this relational expressions as an immutable list.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/hint/Hintable.html#getHints--">getHints</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/hint/Hintable.html" title="org.apache.calcite.rel.hint中的接口">Hintable</a></code></dd> |
| </dl> |
| </li> |
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| <h4>getFlags</h4> |
| <pre><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Deprecated.html?is-external=true" title="java.lang中的类或接口">@Deprecated</a> |
| public int getFlags()</pre> |
| <div class="block"><span class="deprecatedLabel">已过时。</span> </div> |
| </li> |
| </ul> |
| <a name="isValid-org.apache.calcite.util.Litmus-org.apache.calcite.rel.RelNode.Context-"> |
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| <h4>isValid</h4> |
| <pre>public boolean isValid(<a href="../../../../../org/apache/calcite/util/Litmus.html" title="org.apache.calcite.util中的接口">Litmus</a> litmus, |
| <a href="../../../../../org/apache/calcite/rel/RelNode.Context.html" title="org.apache.calcite.rel中的接口">RelNode.Context</a> context)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/RelNode.html#isValid-org.apache.calcite.util.Litmus-org.apache.calcite.rel.RelNode.Context-">RelNode</a></code></span></div> |
| <div class="block">Returns whether this relational expression is valid. |
| |
| <p>If assertions are enabled, this method is typically called with <code> |
| litmus</code> = <code>THROW</code>, as follows: |
| |
| <blockquote> |
| <pre>assert rel.isValid(Litmus.THROW)</pre> |
| </blockquote> |
| |
| <p>This signals that the method can throw an <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/AssertionError.html?is-external=true" title="java.lang中的类或接口"><code>AssertionError</code></a> if it |
| is not valid.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/RelNode.html#isValid-org.apache.calcite.util.Litmus-org.apache.calcite.rel.RelNode.Context-">isValid</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#isValid-org.apache.calcite.util.Litmus-org.apache.calcite.rel.RelNode.Context-">isValid</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>litmus</code> - What to do if invalid</dd> |
| <dd><code>context</code> - Context for validity checking</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Whether relational expression is valid</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="computeSelfCost-org.apache.calcite.plan.RelOptPlanner-org.apache.calcite.rel.metadata.RelMetadataQuery-"> |
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| <h4>computeSelfCost</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/plan/RelOptCost.html" title="org.apache.calcite.plan中的接口">RelOptCost</a> computeSelfCost(<a href="../../../../../org/apache/calcite/plan/RelOptPlanner.html" title="org.apache.calcite.plan中的接口">RelOptPlanner</a> planner, |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html" title="org.apache.calcite.rel.metadata中的类">RelMetadataQuery</a> mq)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从接口复制的说明: <code><a href="../../../../../org/apache/calcite/rel/RelNode.html#computeSelfCost-org.apache.calcite.plan.RelOptPlanner-org.apache.calcite.rel.metadata.RelMetadataQuery-">RelNode</a></code></span></div> |
| <div class="block">Returns the cost of this plan (not including children). The base |
| implementation throws an error; derived classes should override. |
| |
| <p>NOTE jvs 29-Mar-2006: Don't call this method directly. Instead, use |
| <a href="../../../../../org/apache/calcite/rel/metadata/RelMetadataQuery.html#getNonCumulativeCost-org.apache.calcite.rel.RelNode-"><code>RelMetadataQuery.getNonCumulativeCost(org.apache.calcite.rel.RelNode)</code></a>, which gives plugins a |
| chance to override the rel's default ideas about cost.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">指定者:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/RelNode.html#computeSelfCost-org.apache.calcite.plan.RelOptPlanner-org.apache.calcite.rel.metadata.RelMetadataQuery-">computeSelfCost</a></code> 在接口中 <code><a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口">RelNode</a></code></dd> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#computeSelfCost-org.apache.calcite.plan.RelOptPlanner-org.apache.calcite.rel.metadata.RelMetadataQuery-">computeSelfCost</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html" title="org.apache.calcite.rel中的类">AbstractRelNode</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>planner</code> - Planner for cost calculation</dd> |
| <dd><code>mq</code> - Metadata query</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Cost of this plan (not including children)</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="explainTerms-org.apache.calcite.rel.RelWriter-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
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| <h4>explainTerms</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/rel/RelWriter.html" title="org.apache.calcite.rel中的接口">RelWriter</a> explainTerms(<a href="../../../../../org/apache/calcite/rel/RelWriter.html" title="org.apache.calcite.rel中的接口">RelWriter</a> pw)</pre> |
| <div class="block"><span class="descfrmTypeLabel">从类复制的说明: <code><a href="../../../../../org/apache/calcite/rel/AbstractRelNode.html#explainTerms-org.apache.calcite.rel.RelWriter-">AbstractRelNode</a></code></span></div> |
| <div class="block">Describes the inputs and attributes of this relational expression. |
| Each node should call <code>super.explainTerms</code>, then call the |
| <a href="../../../../../org/apache/calcite/rel/RelWriter.html#input-java.lang.String-org.apache.calcite.rel.RelNode-"><code>RelWriter.input(String, RelNode)</code></a> |
| and |
| <a href="../../../../../org/apache/calcite/rel/externalize/RelWriterImpl.html#item-java.lang.String-java.lang.Object-"><code>RelWriterImpl.item(String, Object)</code></a> |
| methods for each input and attribute.</div> |
| <dl> |
| <dt><span class="overrideSpecifyLabel">覆盖:</span></dt> |
| <dd><code><a href="../../../../../org/apache/calcite/rel/SingleRel.html#explainTerms-org.apache.calcite.rel.RelWriter-">explainTerms</a></code> 在类中 <code><a href="../../../../../org/apache/calcite/rel/SingleRel.html" title="org.apache.calcite.rel中的类">SingleRel</a></code></dd> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>pw</code> - Plan writer</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Plan writer for fluent-explain pattern</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMapping--"> |
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| <h4>getMapping</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a> getMapping()</pre> |
| <div class="block">Returns a mapping, or null if this projection is not a mapping.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Mapping, or null if this projection is not a mapping</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getMapping-int-java.util.List-"> |
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| <pre>public static <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a> getMapping(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</pre> |
| <div class="block">Returns a mapping of a set of project expressions. |
| |
| <p>The mapping is an inverse surjection. |
| Every target has a source field, but no |
| source has more than one target. |
| Thus you can safely call |
| <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html#getSourceOpt-int-"><code>Mappings.TargetMapping.getSourceOpt(int)</code></a>.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>inputFieldCount</code> - Number of input fields</dd> |
| <dd><code>projects</code> - Project expressions</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Mapping of a set of project expressions, or null if projection is |
| not a mapping</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getPartialMapping-int-java.util.List-"> |
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| </a> |
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| <h4>getPartialMapping</h4> |
| <pre>public static <a href="../../../../../org/apache/calcite/util/mapping/Mappings.TargetMapping.html" title="org.apache.calcite.util.mapping中的接口">Mappings.TargetMapping</a> getPartialMapping(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</pre> |
| <div class="block">Returns a partial mapping of a set of project expressions. |
| |
| <p>The mapping is an inverse function. |
| Every target has a source field, but |
| a source might have 0, 1 or more targets. |
| Project expressions that do not consist of |
| a mapping are ignored.</div> |
| <dl> |
| <dt><span class="paramLabel">参数:</span></dt> |
| <dd><code>inputFieldCount</code> - Number of input fields</dd> |
| <dd><code>projects</code> - Project expressions</dd> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Mapping of a set of project expressions, never null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getPermutation--"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPermutation</h4> |
| <pre>public <a href="../../../../../org/apache/calcite/util/Permutation.html" title="org.apache.calcite.util中的类">Permutation</a> getPermutation()</pre> |
| <div class="block">Returns a permutation, if this projection is merely a permutation of its |
| input fields; otherwise null.</div> |
| <dl> |
| <dt><span class="returnLabel">返回:</span></dt> |
| <dd>Permutation, if this projection is merely a permutation of its |
| input fields; otherwise null</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getPermutation-int-java.util.List-"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getPermutation</h4> |
| <pre>public static <a href="../../../../../org/apache/calcite/util/Permutation.html" title="org.apache.calcite.util中的类">Permutation</a> getPermutation(int inputFieldCount, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="java.util中的类或接口">List</a><? extends <a href="../../../../../org/apache/calcite/rex/RexNode.html" title="org.apache.calcite.rex中的类">RexNode</a>> projects)</pre> |
| <div class="block">Returns a permutation, if this projection is merely a permutation of its |
| input fields; otherwise null.</div> |
| </li> |
| </ul> |
| <a name="isMapping--"> |
| <!-- --> |
| </a> |
| <ul class="blockListLast"> |
| <li class="blockList"> |
| <h4>isMapping</h4> |
| <pre>public boolean isMapping()</pre> |
| <div class="block">Checks whether this is a functional mapping. |
| Every output is a source field, but |
| a source field may appear as zero, one, or more output fields.</div> |
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