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<div class="subTitle">org.apache.calcite.schema</div>
<h2 title="接口 Wrapper" class="title">接口 Wrapper</h2>
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<dt>所有已知子接口:</dt>
<dd><a href="../../../../org/apache/calcite/plan/Context.html" title="org.apache.calcite.plan中的接口">Context</a>, <a href="../../../../org/apache/calcite/prepare/Prepare.CatalogReader.html" title="org.apache.calcite.prepare中的接口">Prepare.CatalogReader</a>, <a href="../../../../org/apache/calcite/prepare/Prepare.PreparingTable.html" title="org.apache.calcite.prepare中的接口">Prepare.PreparingTable</a>, <a href="../../../../org/apache/calcite/plan/RelOptTable.html" title="org.apache.calcite.plan中的接口">RelOptTable</a>, <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorCatalogReader.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorCatalogReader</a>, <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorTable.html" title="org.apache.calcite.sql.validate中的接口">SqlValidatorTable</a></dd>
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<dl>
<dt>所有已知实现类:</dt>
<dd><a href="../../../../org/apache/calcite/adapter/java/AbstractQueryableTable.html" title="org.apache.calcite.adapter.java中的类">AbstractQueryableTable</a>, <a href="../../../../org/apache/calcite/schema/impl/AbstractTable.html" title="org.apache.calcite.schema.impl中的类">AbstractTable</a>, <a href="../../../../org/apache/calcite/prepare/CalciteCatalogReader.html" title="org.apache.calcite.prepare中的类">CalciteCatalogReader</a>, <a href="../../../../org/apache/calcite/adapter/cassandra/CassandraTable.html" title="org.apache.calcite.adapter.cassandra中的类">CassandraTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/CsvFilterableTable.html" title="org.apache.calcite.adapter.csv中的类">CsvFilterableTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/CsvScannableTable.html" title="org.apache.calcite.adapter.csv中的类">CsvScannableTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/CsvStreamScannableTable.html" title="org.apache.calcite.adapter.csv中的类">CsvStreamScannableTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/CsvTable.html" title="org.apache.calcite.adapter.csv中的类">CsvTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/CsvTranslatableTable.html" title="org.apache.calcite.adapter.csv中的类">CsvTranslatableTable</a>, <a href="../../../../org/apache/calcite/sql/validate/DelegatingSqlValidatorCatalogReader.html" title="org.apache.calcite.sql.validate中的类">DelegatingSqlValidatorCatalogReader</a>, <a href="../../../../org/apache/calcite/sql/validate/DelegatingSqlValidatorTable.html" title="org.apache.calcite.sql.validate中的类">DelegatingSqlValidatorTable</a>, <a href="../../../../org/apache/calcite/adapter/druid/DruidTable.html" title="org.apache.calcite.adapter.druid中的类">DruidTable</a>, <a href="../../../../org/apache/calcite/adapter/elasticsearch/ElasticsearchTable.html" title="org.apache.calcite.adapter.elasticsearch中的类">ElasticsearchTable</a>, <a href="../../../../org/apache/calcite/adapter/geode/simple/GeodeSimpleScannableTable.html" title="org.apache.calcite.adapter.geode.simple中的类">GeodeSimpleScannableTable</a>, <a href="../../../../org/apache/calcite/adapter/geode/rel/GeodeTable.html" title="org.apache.calcite.adapter.geode.rel中的类">GeodeTable</a>, <a href="../../../../org/apache/calcite/adapter/jdbc/JdbcTable.html" title="org.apache.calcite.adapter.jdbc中的类">JdbcTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/JsonScannableTable.html" title="org.apache.calcite.adapter.csv中的类">JsonScannableTable</a>, <a href="../../../../org/apache/calcite/adapter/csv/JsonTable.html" title="org.apache.calcite.adapter.csv中的类">JsonTable</a>, <a href="../../../../org/apache/calcite/schema/impl/ListTransientTable.html" title="org.apache.calcite.schema.impl中的类">ListTransientTable</a>, <a href="../../../../org/apache/calcite/schema/impl/MaterializedViewTable.html" title="org.apache.calcite.schema.impl中的类">MaterializedViewTable</a>, <a href="../../../../org/apache/calcite/example/maze/MazeTable.html" title="org.apache.calcite.example.maze中的类">MazeTable</a>, <a href="../../../../org/apache/calcite/schema/impl/ModifiableViewTable.html" title="org.apache.calcite.schema.impl中的类">ModifiableViewTable</a>, <a href="../../../../org/apache/calcite/adapter/mongodb/MongoTable.html" title="org.apache.calcite.adapter.mongodb中的类">MongoTable</a>, <a href="../../../../org/apache/calcite/adapter/pig/PigTable.html" title="org.apache.calcite.adapter.pig中的类">PigTable</a>, <a href="../../../../org/apache/calcite/piglet/PigTable.html" title="org.apache.calcite.piglet中的类">PigTable</a>, <a href="../../../../org/apache/calcite/prepare/Prepare.AbstractPreparingTable.html" title="org.apache.calcite.prepare中的类">Prepare.AbstractPreparingTable</a>, <a href="../../../../org/apache/calcite/adapter/redis/RedisTable.html" title="org.apache.calcite.adapter.redis中的类">RedisTable</a>, <a href="../../../../org/apache/calcite/plan/RelOptAbstractTable.html" 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href="../../../../org/apache/calcite/sql/fun/SqlSumEmptyIsZeroAggFunction.html" title="org.apache.calcite.sql.fun中的类">SqlSumEmptyIsZeroAggFunction</a>, <a href="../../../../org/apache/calcite/sql/validate/SqlUserDefinedAggFunction.html" title="org.apache.calcite.sql.validate中的类">SqlUserDefinedAggFunction</a>, <a href="../../../../org/apache/calcite/schema/impl/StarTable.html" title="org.apache.calcite.schema.impl中的类">StarTable</a>, <a href="../../../../org/apache/calcite/schema/impl/ViewTable.html" title="org.apache.calcite.schema.impl中的类">ViewTable</a></dd>
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<pre>public interface <span class="typeNameLabel">Wrapper</span></pre>
<div class="block">Mix-in interface that allows you to find sub-objects.</div>
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<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">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">实例方法</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">抽象方法</a></span><span class="tabEnd">&nbsp;</span></span></caption>
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<td class="colFirst"><code>&lt;C&gt;&nbsp;C</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/calcite/schema/Wrapper.html#unwrap-java.lang.Class-">unwrap</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a>&lt;C&gt;&nbsp;aClass)</code>
<div class="block">Finds an instance of an interface implemented by this object,
or returns null if this object does not support that interface.</div>
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<pre>&lt;C&gt;&nbsp;C&nbsp;unwrap(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html?is-external=true" title="java.lang中的类或接口">Class</a>&lt;C&gt;&nbsp;aClass)</pre>
<div class="block">Finds an instance of an interface implemented by this object,
or returns null if this object does not support that interface.</div>
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