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<div class="subTitle">org.apache.calcite.rel.mutable</div>
<h2 title="类 MutableRel" class="title">类 MutableRel</h2>
</div>
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<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>
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<li>org.apache.calcite.rel.mutable.MutableRel</li>
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<dl>
<dt>直接已知子类:</dt>
<dd><a href="../../../../../org/apache/calcite/rel/mutable/Holder.html" title="org.apache.calcite.rel.mutable中的类">Holder</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableAggregate.html" title="org.apache.calcite.rel.mutable中的类">MutableAggregate</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableCalc.html" title="org.apache.calcite.rel.mutable中的类">MutableCalc</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableCollect.html" title="org.apache.calcite.rel.mutable中的类">MutableCollect</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableCorrelate.html" title="org.apache.calcite.rel.mutable中的类">MutableCorrelate</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableExchange.html" title="org.apache.calcite.rel.mutable中的类">MutableExchange</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableFilter.html" title="org.apache.calcite.rel.mutable中的类">MutableFilter</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableIntersect.html" title="org.apache.calcite.rel.mutable中的类">MutableIntersect</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableJoin.html" title="org.apache.calcite.rel.mutable中的类">MutableJoin</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableMatch.html" title="org.apache.calcite.rel.mutable中的类">MutableMatch</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableMinus.html" title="org.apache.calcite.rel.mutable中的类">MutableMinus</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableProject.html" title="org.apache.calcite.rel.mutable中的类">MutableProject</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableSample.html" title="org.apache.calcite.rel.mutable中的类">MutableSample</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableScan.html" title="org.apache.calcite.rel.mutable中的类">MutableScan</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableSort.html" title="org.apache.calcite.rel.mutable中的类">MutableSort</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableTableFunctionScan.html" title="org.apache.calcite.rel.mutable中的类">MutableTableFunctionScan</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableTableModify.html" title="org.apache.calcite.rel.mutable中的类">MutableTableModify</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableUncollect.html" title="org.apache.calcite.rel.mutable中的类">MutableUncollect</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableUnion.html" title="org.apache.calcite.rel.mutable中的类">MutableUnion</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableValues.html" title="org.apache.calcite.rel.mutable中的类">MutableValues</a>, <a href="../../../../../org/apache/calcite/rel/mutable/MutableWindow.html" title="org.apache.calcite.rel.mutable中的类">MutableWindow</a></dd>
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<pre>public abstract class <span class="typeNameLabel">MutableRel</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">Mutable equivalent of <a href="../../../../../org/apache/calcite/rel/RelNode.html" title="org.apache.calcite.rel中的接口"><code>RelNode</code></a>.
<p>Each node has mutable state, and keeps track of its parent and position
within parent.
It doesn't make sense to canonize <code>MutableRels</code>,
otherwise one node could end up with multiple parents.
It follows that <code>#hashCode</code> and <code>#equals</code> are less efficient
than their <code>RelNode</code> counterparts.
But, you don't need to copy a <code>MutableRel</code> in order to change it.
For this reason, you should use <code>MutableRel</code> for short-lived
operations, and transcribe back to <code>RelNode</code> when you are done.</p></div>
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<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">&nbsp;</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><a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#cluster">cluster</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#ordinalInParent">ordinalInParent</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected static com.google.common.base.Equivalence&lt;<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>&lt;?&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#PAIRWISE_STRING_EQUIVALENCE">PAIRWISE_STRING_EQUIVALENCE</a></span></code>
<div class="block">Equivalence that compares <code>Lists</code>s by the
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口"><code>Object.toString()</code></a> of their elements.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#parent">parent</a></span></code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#rowType">rowType</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected static com.google.common.base.Equivalence&lt;<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>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#STRING_EQUIVALENCE">STRING_EQUIVALENCE</a></span></code>
<div class="block">Equivalence that compares objects by their <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口"><code>Object.toString()</code></a>
method.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected org.apache.calcite.rel.mutable.MutableRelType</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#type">type</a></span></code>&nbsp;</td>
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<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">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">限定符</th>
<th class="colLast" scope="col">构造器和说明</th>
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<td class="colFirst"><code>protected </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#MutableRel-org.apache.calcite.plan.RelOptCluster-org.apache.calcite.rel.type.RelDataType-org.apache.calcite.rel.mutable.MutableRelType-">MutableRel</a></span>(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a>&nbsp;cluster,
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>&nbsp;rowType,
org.apache.calcite.rel.mutable.MutableRelType&nbsp;type)</code>&nbsp;</td>
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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><span id="t4" class="tableTab"><span><a href="javascript:show(8);">具体方法</a></span><span class="tabEnd">&nbsp;</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>
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<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#childrenAccept-org.apache.calcite.rel.mutable.MutableRelVisitor-">childrenAccept</a></span>(<a href="../../../../../org/apache/calcite/rel/mutable/MutableRelVisitor.html" title="org.apache.calcite.rel.mutable中的类">MutableRelVisitor</a>&nbsp;visitor)</code>&nbsp;</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>abstract <a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#clone--">clone</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><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/mutable/MutableRel.html#deep--">deep</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#digest-java.lang.StringBuilder-">digest</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a>&nbsp;buf)</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>abstract <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>&lt;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#getInputs--">getInputs</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#getParent--">getParent</a></span>()</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#replaceInParent-org.apache.calcite.rel.mutable.MutableRel-">replaceInParent</a></span>(<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;child)</code>
<div class="block">Replaces this <code>MutableRel</code> in its parent with another node at the
same position.</div>
</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html#setInput-int-org.apache.calcite.rel.mutable.MutableRel-">setInput</a></span>(int&nbsp;ordinalInParent,
<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;input)</code>&nbsp;</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code><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/mutable/MutableRel.html#toString--">toString</a></span>()</code>&nbsp;</td>
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<h3>从类继承的方法&nbsp;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#equals-java.lang.Object-" title="java.lang中的类或接口">equals</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#hashCode--" title="java.lang中的类或接口">hashCode</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>
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<h3>字段详细资料</h3>
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<pre>protected static final&nbsp;com.google.common.base.Equivalence&lt;<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>&gt; STRING_EQUIVALENCE</pre>
<div class="block">Equivalence that compares objects by their <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口"><code>Object.toString()</code></a>
method.</div>
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<h4>PAIRWISE_STRING_EQUIVALENCE</h4>
<pre>protected static final&nbsp;com.google.common.base.Equivalence&lt;<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>&lt;?&gt;&gt; PAIRWISE_STRING_EQUIVALENCE</pre>
<div class="block">Equivalence that compares <code>Lists</code>s by the
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="java.lang中的类或接口"><code>Object.toString()</code></a> of their elements.</div>
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<h4>cluster</h4>
<pre>public final&nbsp;<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a> cluster</pre>
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<pre>public final&nbsp;<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a> rowType</pre>
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<h4>type</h4>
<pre>protected final&nbsp;org.apache.calcite.rel.mutable.MutableRelType type</pre>
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<h4>parent</h4>
<pre>protected&nbsp;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a> parent</pre>
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<pre>protected&nbsp;int ordinalInParent</pre>
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<pre>protected&nbsp;MutableRel(<a href="../../../../../org/apache/calcite/plan/RelOptCluster.html" title="org.apache.calcite.plan中的类">RelOptCluster</a>&nbsp;cluster,
<a href="../../../../../org/apache/calcite/rel/type/RelDataType.html" title="org.apache.calcite.rel.type中的接口">RelDataType</a>&nbsp;rowType,
org.apache.calcite.rel.mutable.MutableRelType&nbsp;type)</pre>
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<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;getParent()</pre>
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<pre>public abstract&nbsp;void&nbsp;setInput(int&nbsp;ordinalInParent,
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<pre>public abstract&nbsp;<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>&lt;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&gt;&nbsp;getInputs()</pre>
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<pre>public abstract&nbsp;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;clone()</pre>
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<dd><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></code>&nbsp;在类中&nbsp;<code><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></code></dd>
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<pre>public abstract&nbsp;void&nbsp;childrenAccept(<a href="../../../../../org/apache/calcite/rel/mutable/MutableRelVisitor.html" title="org.apache.calcite.rel.mutable中的类">MutableRelVisitor</a>&nbsp;visitor)</pre>
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<pre>public&nbsp;<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;replaceInParent(<a href="../../../../../org/apache/calcite/rel/mutable/MutableRel.html" title="org.apache.calcite.rel.mutable中的类">MutableRel</a>&nbsp;child)</pre>
<div class="block">Replaces this <code>MutableRel</code> in its parent with another node at the
same position.
<p>Before the method, <code>child</code> must be an orphan (have null parent)
and after this method, this <code>MutableRel</code> is an orphan.</div>
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<dt><span class="returnLabel">返回:</span></dt>
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<pre>public abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a>&nbsp;digest(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/StringBuilder.html?is-external=true" title="java.lang中的类或接口">StringBuilder</a>&nbsp;buf)</pre>
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