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<div class="subTitle">org.apache.beam.sdk.values</div>
<h2 title="Class PCollectionViews.MapViewFn" class="title">Class PCollectionViews.MapViewFn&lt;K,V&gt;</h2>
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<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
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<ul class="inheritance">
<li><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms">org.apache.beam.sdk.transforms.ViewFn</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;K,V&gt;&gt;,java.util.Map&lt;K,V&gt;&gt;</li>
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<li>org.apache.beam.sdk.values.PCollectionViews.MapViewFn&lt;K,V&gt;</li>
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<dd><a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.html" title="class in org.apache.beam.sdk.values">PCollectionViews</a></dd>
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<pre><a href="../../../../../org/apache/beam/sdk/annotations/Experimental.html" title="annotation in org.apache.beam.sdk.annotations">@Experimental</a>(<a href="../../../../../org/apache/beam/sdk/annotations/Experimental.html#value--">value</a>=<a href="../../../../../org/apache/beam/sdk/annotations/Experimental.Kind.html#CORE_RUNNERS_ONLY">CORE_RUNNERS_ONLY</a>)
public static class <span class="typeNameLabel">PCollectionViews.MapViewFn&lt;K,V&gt;</span>
extends <a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms">ViewFn</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;K,V&gt;&gt;,java.util.Map&lt;K,V&gt;&gt;</pre>
<div class="block">Implementation which is able to adapt a multimap materialization to a <code>Map&lt;K, V&gt;</code>.
<p>For internal use only.
<p>Instantiate via <a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.html#mapView-org.apache.beam.sdk.values.PCollection-org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier-org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier-org.apache.beam.sdk.values.WindowingStrategy-"><code>PCollectionViews.mapView(org.apache.beam.sdk.values.PCollection&lt;org.apache.beam.sdk.values.KV&lt;java.lang.Void, org.apache.beam.sdk.values.KV&lt;K, V&gt;&gt;&gt;, org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier&lt;K&gt;, org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier&lt;V&gt;, org.apache.beam.sdk.values.WindowingStrategy&lt;?, W&gt;)</code></a>.</div>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html#MapViewFn-org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier-org.apache.beam.sdk.values.PCollectionViews.TypeDescriptorSupplier-">MapViewFn</a></span>(<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.TypeDescriptorSupplier.html" title="interface in org.apache.beam.sdk.values">PCollectionViews.TypeDescriptorSupplier</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>&gt;&nbsp;keyTypeDescriptorSupplier,
<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.TypeDescriptorSupplier.html" title="interface in org.apache.beam.sdk.values">PCollectionViews.TypeDescriptorSupplier</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&nbsp;valueTypeDescriptorSupplier)</code>&nbsp;</td>
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<td class="colFirst"><code>java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html#apply-org.apache.beam.sdk.transforms.Materializations.MultimapView-">apply</a></span>(<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;&nbsp;primitiveViewT)</code>
<div class="block">A function to adapt a primitive view type to a desired view type.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/transforms/Materialization.html" title="interface in org.apache.beam.sdk.transforms">Materialization</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html#getMaterialization--">getMaterialization</a></span>()</code>
<div class="block">Gets the materialization of this <a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms"><code>ViewFn</code></a>.</div>
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<td class="colFirst"><code><a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a>&lt;java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html#getTypeDescriptor--">getTypeDescriptor</a></span>()</code>
<div class="block">Return the <a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values"><code>TypeDescriptor</code></a> describing the output of this fn.</div>
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<h4>MapViewFn</h4>
<pre>public&nbsp;MapViewFn(<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.TypeDescriptorSupplier.html" title="interface in org.apache.beam.sdk.values">PCollectionViews.TypeDescriptorSupplier</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>&gt;&nbsp;keyTypeDescriptorSupplier,
<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.TypeDescriptorSupplier.html" title="interface in org.apache.beam.sdk.values">PCollectionViews.TypeDescriptorSupplier</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&nbsp;valueTypeDescriptorSupplier)</pre>
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<h4>getMaterialization</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/beam/sdk/transforms/Materialization.html" title="interface in org.apache.beam.sdk.transforms">Materialization</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;&gt;&nbsp;getMaterialization()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#getMaterialization--">ViewFn</a></code></span></div>
<div class="block">Gets the materialization of this <a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms"><code>ViewFn</code></a>.</div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#getMaterialization--">getMaterialization</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms">ViewFn</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;,java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&nbsp;apply(<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;&nbsp;primitiveViewT)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#apply-PrimitiveViewT-">ViewFn</a></code></span></div>
<div class="block">A function to adapt a primitive view type to a desired view type.</div>
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<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#apply-PrimitiveViewT-">apply</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms">ViewFn</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;,java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values">TypeDescriptor</a>&lt;java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;&nbsp;getTypeDescriptor()</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from class:&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#getTypeDescriptor--">ViewFn</a></code></span></div>
<div class="block">Return the <a href="../../../../../org/apache/beam/sdk/values/TypeDescriptor.html" title="class in org.apache.beam.sdk.values"><code>TypeDescriptor</code></a> describing the output of this fn.</div>
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<dd><code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html#getTypeDescriptor--">getTypeDescriptor</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/beam/sdk/transforms/ViewFn.html" title="class in org.apache.beam.sdk.transforms">ViewFn</a>&lt;<a href="../../../../../org/apache/beam/sdk/transforms/Materializations.MultimapView.html" title="interface in org.apache.beam.sdk.transforms">Materializations.MultimapView</a>&lt;java.lang.Void,<a href="../../../../../org/apache/beam/sdk/values/KV.html" title="class in org.apache.beam.sdk.values">KV</a>&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;,java.util.Map&lt;<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">K</a>,<a href="../../../../../org/apache/beam/sdk/values/PCollectionViews.MapViewFn.html" title="type parameter in PCollectionViews.MapViewFn">V</a>&gt;&gt;</code></dd>
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