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<div class="subTitle">org.apache.calcite.schema</div>
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<dt>All Known Subinterfaces:</dt>
<dd><a href="../../../../org/apache/calcite/plan/Context.html" title="interface in org.apache.calcite.plan">Context</a>, <a href="../../../../org/apache/calcite/prepare/Prepare.CatalogReader.html" title="interface in org.apache.calcite.prepare">Prepare.CatalogReader</a>, <a href="../../../../org/apache/calcite/prepare/Prepare.PreparingTable.html" title="interface in org.apache.calcite.prepare">Prepare.PreparingTable</a>, <a href="../../../../org/apache/calcite/plan/RelOptTable.html" title="interface in org.apache.calcite.plan">RelOptTable</a>, <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorCatalogReader.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorCatalogReader</a>, <a href="../../../../org/apache/calcite/sql/validate/SqlValidatorTable.html" title="interface in org.apache.calcite.sql.validate">SqlValidatorTable</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>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t3" class="tableTab"><span><a href="javascript:show(4);">Abstract Methods</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="class or interface in java.lang">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="class or interface in java.lang">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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