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<div class="subTitle">org.apache.hadoop.yarn.api.resource</div>
<h2 title="Class PlacementConstraint.SingleConstraint" class="title">Class PlacementConstraint.SingleConstraint</h2>
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<li><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.AbstractConstraint.html" title="class in org.apache.hadoop.yarn.api.resource">org.apache.hadoop.yarn.api.resource.PlacementConstraint.AbstractConstraint</a></li>
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<li>org.apache.hadoop.yarn.api.resource.PlacementConstraint.SingleConstraint</li>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.Visitable.html" title="interface in org.apache.hadoop.yarn.api.resource">PlacementConstraint.Visitable</a></dd>
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<dl>
<dt>Enclosing class:</dt>
<dd><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint</a></dd>
</dl>
<hr>
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<pre>public static class <span class="typeNameLabel">PlacementConstraint.SingleConstraint</span>
extends <a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.AbstractConstraint.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.AbstractConstraint</a></pre>
<div class="block">Consider a set of nodes N that belongs to the scope specified in the
constraint. If the target expressions are satisfied at least minCardinality
times and at most max-cardinality times in the node set N, then the
constraint is satisfied.
For example, a constraint of the form <code>{RACK, 2, 10,
allocationTag("zk")}</code>, requires an allocation to be placed within a rack
that has at least 2 and at most 10 other allocations with tag "zk".</div>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
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<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#SingleConstraint-java.lang.String-int-int-org.apache.hadoop.yarn.api.records.NodeAttributeOpCode-org.apache.hadoop.yarn.api.resource.PlacementConstraint.TargetExpression...-">SingleConstraint</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minC,
int&nbsp;maxC,
<a href="../../../../../../org/apache/hadoop/yarn/api/records/NodeAttributeOpCode.html" title="enum in org.apache.hadoop.yarn.api.records">NodeAttributeOpCode</a>&nbsp;opCode,
<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>...&nbsp;targetExpressions)</code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#SingleConstraint-java.lang.String-int-int-org.apache.hadoop.yarn.api.records.NodeAttributeOpCode-java.util.Set-">SingleConstraint</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minCardinality,
int&nbsp;maxCardinality,
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<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>&gt;&nbsp;targetExpressions)</code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#SingleConstraint-java.lang.String-int-int-org.apache.hadoop.yarn.api.resource.PlacementConstraint.TargetExpression...-">SingleConstraint</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minC,
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<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>...&nbsp;targetExpressions)</code>&nbsp;</td>
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<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#SingleConstraint-java.lang.String-int-int-java.util.Set-">SingleConstraint</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minCardinality,
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<td class="colFirst"><code>&lt;T&gt;&nbsp;T</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#accept-org.apache.hadoop.yarn.api.resource.PlacementConstraint.Visitor-">accept</a></span>(<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.Visitor.html" title="interface in org.apache.hadoop.yarn.api.resource">PlacementConstraint.Visitor</a>&lt;T&gt;&nbsp;visitor)</code>
<div class="block">Visitor pattern.</div>
</td>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#equals-java.lang.Object-">equals</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;o)</code>&nbsp;</td>
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<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#getMaxCardinality--">getMaxCardinality</a></span>()</code>
<div class="block">Get the maximum cardinality of the constraint.</div>
</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#getMinCardinality--">getMinCardinality</a></span>()</code>
<div class="block">Get the minimum cardinality of the constraint.</div>
</td>
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<tr id="i4" class="altColor">
<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/yarn/api/records/NodeAttributeOpCode.html" title="enum in org.apache.hadoop.yarn.api.records">NodeAttributeOpCode</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#getNodeAttributeOpCode--">getNodeAttributeOpCode</a></span>()</code>
<div class="block">Get the NodeAttributeOpCode of the constraint.</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#getScope--">getScope</a></span>()</code>
<div class="block">Get the scope of the constraint.</div>
</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#getTargetExpressions--">getTargetExpressions</a></span>()</code>
<div class="block">Get the target expressions of the constraint.</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/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#hashCode--">hashCode</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.SingleConstraint.html#toString--">toString</a></span>()</code>&nbsp;</td>
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<h4>SingleConstraint</h4>
<pre>public&nbsp;SingleConstraint(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minCardinality,
int&nbsp;maxCardinality,
<a href="../../../../../../org/apache/hadoop/yarn/api/records/NodeAttributeOpCode.html" title="enum in org.apache.hadoop.yarn.api.records">NodeAttributeOpCode</a>&nbsp;opCode,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>&gt;&nbsp;targetExpressions)</pre>
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<pre>public&nbsp;SingleConstraint(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minCardinality,
int&nbsp;maxCardinality,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>&gt;&nbsp;targetExpressions)</pre>
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<h4>SingleConstraint</h4>
<pre>public&nbsp;SingleConstraint(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minC,
int&nbsp;maxC,
<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>...&nbsp;targetExpressions)</pre>
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<h4>SingleConstraint</h4>
<pre>public&nbsp;SingleConstraint(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;scope,
int&nbsp;minC,
int&nbsp;maxC,
<a href="../../../../../../org/apache/hadoop/yarn/api/records/NodeAttributeOpCode.html" title="enum in org.apache.hadoop.yarn.api.records">NodeAttributeOpCode</a>&nbsp;opCode,
<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>...&nbsp;targetExpressions)</pre>
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<a name="getScope--">
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<h4>getScope</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getScope()</pre>
<div class="block">Get the scope of the constraint.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the scope of the constraint</dd>
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</li>
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<a name="getMinCardinality--">
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<h4>getMinCardinality</h4>
<pre>public&nbsp;int&nbsp;getMinCardinality()</pre>
<div class="block">Get the minimum cardinality of the constraint.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the minimum cardinality of the constraint</dd>
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<a name="getMaxCardinality--">
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<pre>public&nbsp;int&nbsp;getMaxCardinality()</pre>
<div class="block">Get the maximum cardinality of the constraint.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the maximum cardinality of the constraint</dd>
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<h4>getTargetExpressions</h4>
<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.TargetExpression.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.TargetExpression</a>&gt;&nbsp;getTargetExpressions()</pre>
<div class="block">Get the target expressions of the constraint.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the set of target expressions</dd>
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</li>
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<a name="getNodeAttributeOpCode--">
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<h4>getNodeAttributeOpCode</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/hadoop/yarn/api/records/NodeAttributeOpCode.html" title="enum in org.apache.hadoop.yarn.api.records">NodeAttributeOpCode</a>&nbsp;getNodeAttributeOpCode()</pre>
<div class="block">Get the NodeAttributeOpCode of the constraint.</div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>nodeAttribute Op Code</dd>
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<pre>public&nbsp;boolean&nbsp;equals(<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&nbsp;o)</pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a></code>&nbsp;in class&nbsp;<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<pre>public&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toString()</pre>
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<dd><code><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.AbstractConstraint.html#toString--">toString</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.AbstractConstraint.html" title="class in org.apache.hadoop.yarn.api.resource">PlacementConstraint.AbstractConstraint</a></code></dd>
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<pre>public&nbsp;&lt;T&gt;&nbsp;T&nbsp;accept(<a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.Visitor.html" title="interface in org.apache.hadoop.yarn.api.resource">PlacementConstraint.Visitor</a>&lt;T&gt;&nbsp;visitor)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../../../org/apache/hadoop/yarn/api/resource/PlacementConstraint.Visitable.html#accept-org.apache.hadoop.yarn.api.resource.PlacementConstraint.Visitor-">PlacementConstraint.Visitable</a></code></span></div>
<div class="block">Visitor pattern.</div>
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<dt><span class="paramLabel">Type Parameters:</span></dt>
<dd><code>T</code> - defines the type that the visitor will use and the return type
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<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>visitor</code> - visitor to be used</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the result of visiting a given object.</dd>
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