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<div class="subTitle">org.apache.calcite.sql.fun</div>
<h2 title="类 SqlLibraryOperatorTableFactory" class="title">类 SqlLibraryOperatorTableFactory</h2>
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<li>org.apache.calcite.sql.fun.SqlLibraryOperatorTableFactory</li>
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<pre>public class <span class="typeNameLabel">SqlLibraryOperatorTableFactory</span>
extends <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></pre>
<div class="block">Factory that creates operator tables that consist of functions and operators
for particular named libraries. For example, the following code will return
an operator table that contains operators for both Oracle and MySQL:
<blockquote>
<pre>SqlOperatorTable opTab =
SqlLibraryOperatorTableFactory.INSTANCE.getOperatorTable(
EnumSet.of(SqlLibrary.ORACLE, SqlLibrary.MYSQL))</pre>
</blockquote>
<p>To define a new library, add a value to enum <a href="../../../../../org/apache/calcite/sql/fun/SqlLibrary.html" title="org.apache.calcite.sql.fun中的枚举"><code>SqlLibrary</code></a>.
<p>To add functions to a library, add the <a href="../../../../../org/apache/calcite/sql/fun/LibraryOperator.html" title="org.apache.calcite.sql.fun中的注释"><code>LibraryOperator</code></a> annotation
to fields that of type <a href="../../../../../org/apache/calcite/sql/SqlOperator.html" title="org.apache.calcite.sql中的类"><code>SqlOperator</code></a>, and the library name to its
<a href="../../../../../org/apache/calcite/sql/fun/LibraryOperator.html#libraries--"><code>LibraryOperator.libraries()</code></a> field.</div>
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<td class="colFirst"><code>static <a href="../../../../../org/apache/calcite/sql/fun/SqlLibraryOperatorTableFactory.html" title="org.apache.calcite.sql.fun中的类">SqlLibraryOperatorTableFactory</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/fun/SqlLibraryOperatorTableFactory.html#INSTANCE">INSTANCE</a></span></code>
<div class="block">The singleton instance.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/SqlOperatorTable.html" title="org.apache.calcite.sql中的接口">SqlOperatorTable</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/fun/SqlLibraryOperatorTableFactory.html#getOperatorTable-java.lang.Iterable-">getOperatorTable</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="java.lang中的类或接口">Iterable</a>&lt;<a href="../../../../../org/apache/calcite/sql/fun/SqlLibrary.html" title="org.apache.calcite.sql.fun中的枚举">SqlLibrary</a>&gt;&nbsp;librarySet)</code>
<div class="block">Returns a SQL operator table that contains operators in the given set of
libraries.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/calcite/sql/SqlOperatorTable.html" title="org.apache.calcite.sql中的接口">SqlOperatorTable</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/sql/fun/SqlLibraryOperatorTableFactory.html#getOperatorTable-org.apache.calcite.sql.fun.SqlLibrary...-">getOperatorTable</a></span>(<a href="../../../../../org/apache/calcite/sql/fun/SqlLibrary.html" title="org.apache.calcite.sql.fun中的枚举">SqlLibrary</a>...&nbsp;libraries)</code>
<div class="block">Returns a SQL operator table that contains operators in the given library
or libraries.</div>
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<pre>public static final&nbsp;<a href="../../../../../org/apache/calcite/sql/fun/SqlLibraryOperatorTableFactory.html" title="org.apache.calcite.sql.fun中的类">SqlLibraryOperatorTableFactory</a> INSTANCE</pre>
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<h4>getOperatorTable</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/SqlOperatorTable.html" title="org.apache.calcite.sql中的接口">SqlOperatorTable</a>&nbsp;getOperatorTable(<a href="../../../../../org/apache/calcite/sql/fun/SqlLibrary.html" title="org.apache.calcite.sql.fun中的枚举">SqlLibrary</a>...&nbsp;libraries)</pre>
<div class="block">Returns a SQL operator table that contains operators in the given library
or libraries.</div>
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<h4>getOperatorTable</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/calcite/sql/SqlOperatorTable.html" title="org.apache.calcite.sql中的接口">SqlOperatorTable</a>&nbsp;getOperatorTable(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Iterable.html?is-external=true" title="java.lang中的类或接口">Iterable</a>&lt;<a href="../../../../../org/apache/calcite/sql/fun/SqlLibrary.html" title="org.apache.calcite.sql.fun中的枚举">SqlLibrary</a>&gt;&nbsp;librarySet)</pre>
<div class="block">Returns a SQL operator table that contains operators in the given set of
libraries.</div>
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