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<div class="subTitle">org.apache.spark.graphx.impl</div>
<h2 title="Class VertexRDDImpl" class="title">Class VertexRDDImpl&lt;VD&gt;</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li>java.lang.Object</li>
<li>
<ul class="inheritance">
<li><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">org.apache.spark.rdd.RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,VD&gt;&gt;</li>
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<li><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">org.apache.spark.graphx.VertexRDD</a>&lt;VD&gt;</li>
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<li>org.apache.spark.graphx.impl.VertexRDDImpl&lt;VD&gt;</li>
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<pre>public class <span class="strong">VertexRDDImpl&lt;VD&gt;</span>
extends <a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD&gt;</pre>
<dl><dt><span class="strong">See Also:</span></dt><dd><a href="../../../../../serialized-form.html#org.apache.spark.graphx.impl.VertexRDDImpl">Serialized Form</a></dd></dl>
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<caption><span>Methods</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#aggregateUsingIndex(org.apache.spark.rdd.RDD, scala.Function2, scala.reflect.ClassTag)">aggregateUsingIndex</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,VD2&gt;&gt;&nbsp;messages,
                   scala.Function2&lt;VD2,VD2,VD2&gt;&nbsp;reduceFunc,
                   scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$12)</code>
<div class="block">Aggregates vertices in <code>messages</code> that have the same ids using <code>reduceFunc</code>, returning a
 VertexRDD co-indexed with <code>this</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="class in org.apache.spark.graphx.impl">VertexRDDImpl</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#cache()">cache</a></strong>()</code>
<div class="block">Persists the vertex partitions at `targetStorageLevel`, which defaults to MEMORY_ONLY.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#checkpoint()">checkpoint</a></strong>()</code>
<div class="block">Mark this RDD for checkpointing.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#count()">count</a></strong>()</code>
<div class="block">The number of vertices in the RDD.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#diff(org.apache.spark.rdd.RDD)">diff</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;&nbsp;other)</code>
<div class="block">For each vertex present in both <code>this</code> and <code>other</code>, <code>diff</code> returns only those vertices with
 differing values; for values that are different, keeps the values from <code>other</code>.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#diff(org.apache.spark.graphx.VertexRDD)">diff</a></strong>(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;other)</code>
<div class="block">For each vertex present in both <code>this</code> and <code>other</code>, <code>diff</code> returns only those vertices with
 differing values; for values that are different, keeps the values from <code>other</code>.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>scala.Option&lt;java.lang.String&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#getCheckpointFile()">getCheckpointFile</a></strong>()</code>
<div class="block">Gets the name of the directory to which this RDD was checkpointed.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected scala.collection.Seq&lt;java.lang.String&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#getPreferredLocations(org.apache.spark.Partition)">getPreferredLocations</a></strong>(<a href="../../../../../org/apache/spark/Partition.html" title="interface in org.apache.spark">Partition</a>&nbsp;s)</code>
<div class="block">Optionally overridden by subclasses to specify placement preferences.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code><a href="../../../../../org/apache/spark/storage/StorageLevel.html" title="class in org.apache.spark.storage">StorageLevel</a></code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#getStorageLevel()">getStorageLevel</a></strong>()</code>
<div class="block">Get the RDD's current storage level, or StorageLevel.NONE if none is set.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>&lt;U,VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#innerJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">innerJoin</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,U&gt;&gt;&nbsp;other,
         scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,U,VD2&gt;&nbsp;f,
         scala.reflect.ClassTag&lt;U&gt;&nbsp;evidence$10,
         scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$11)</code>
<div class="block">Inner joins this VertexRDD with an RDD containing vertex attribute pairs.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;U,VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#innerZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">innerZipJoin</a></strong>(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;U&gt;&nbsp;other,
            scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,U,VD2&gt;&nbsp;f,
            scala.reflect.ClassTag&lt;U&gt;&nbsp;evidence$8,
            scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$9)</code>
<div class="block">Efficiently inner joins this VertexRDD with another VertexRDD sharing the same index.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#isCheckpointed()">isCheckpointed</a></strong>()</code>
<div class="block">Return whether this RDD is marked for checkpointing, either reliably or locally.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;VD2,VD3&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD3&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#leftJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">leftJoin</a></strong>(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,VD2&gt;&gt;&nbsp;other,
        scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,scala.Option&lt;VD2&gt;,VD3&gt;&nbsp;f,
        scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$6,
        scala.reflect.ClassTag&lt;VD3&gt;&nbsp;evidence$7)</code>
<div class="block">Left joins this VertexRDD with an RDD containing vertex attribute pairs.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>&lt;VD2,VD3&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD3&gt;</code></td>
<td class="colLast"><code><strong><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html#leftZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">leftZipJoin</a></strong>(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;other,
           scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,scala.Option&lt;VD2&gt;,VD3&gt;&nbsp;f,
           scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$4,
           scala.reflect.ClassTag&lt;VD3&gt;&nbsp;evidence$5)</code>
<div class="block">Left joins this RDD with another VertexRDD with the same index.</div>
</td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;</code></td>
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<td class="colFirst"><code>&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="class in org.apache.spark.graphx.impl">VertexRDDImpl</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="class in org.apache.spark.graphx.impl">VertexRDDImpl</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code>protected scala.reflect.ClassTag&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<td class="colFirst"><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></td>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;org.apache.spark.graphx.impl.ShippableVertexPartition&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;&nbsp;partitionsRDD()</pre>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/storage/StorageLevel.html" title="class in org.apache.spark.storage">StorageLevel</a>&nbsp;targetStorageLevel()</pre>
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<pre>protected&nbsp;scala.reflect.ClassTag&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;vdTag()</pre>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#vdTag()">vdTag</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;reindex()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#reindex()">VertexRDD</a></code></strong></div>
<div class="block">Construct a new VertexRDD that is indexed by only the visible vertices. The resulting
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 RDD.</div>
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#reindex()">reindex</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public&nbsp;scala.Option&lt;<a href="../../../../../org/apache/spark/Partitioner.html" title="class in org.apache.spark">Partitioner</a>&gt;&nbsp;partitioner()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html#partitioner()">RDD</a></code></strong></div>
<div class="block">Optionally overridden by subclasses to specify how they are partitioned.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#partitioner()">partitioner</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>protected&nbsp;scala.collection.Seq&lt;java.lang.String&gt;&nbsp;getPreferredLocations(<a href="../../../../../org/apache/spark/Partition.html" title="interface in org.apache.spark">Partition</a>&nbsp;s)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html#getPreferredLocations(org.apache.spark.Partition)">RDD</a></code></strong></div>
<div class="block">Optionally overridden by subclasses to specify placement preferences.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#getPreferredLocations(org.apache.spark.Partition)">getPreferredLocations</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>s</code> - (undocumented)</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="class in org.apache.spark.graphx.impl">VertexRDDImpl</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;setName(java.lang.String&nbsp;_name)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html#setName(java.lang.String)">RDD</a></code></strong></div>
<div class="block">Assign a name to this RDD</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#setName(java.lang.String)">setName</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<div class="block">Persists the vertex partitions at the specified storage level, ignoring any existing target
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#persist(org.apache.spark.storage.StorageLevel)">persist</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="class in org.apache.spark.graphx.impl">VertexRDDImpl</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;unpersist(boolean&nbsp;blocking)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html#unpersist(boolean)">RDD</a></code></strong></div>
<div class="block">Mark the RDD as non-persistent, and remove all blocks for it from memory and disk.
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#unpersist(boolean)">unpersist</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>blocking</code> - Whether to block until all blocks are deleted.</dd>
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<div class="block">Persists the vertex partitions at `targetStorageLevel`, which defaults to MEMORY_ONLY.</div>
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#cache()">cache</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/storage/StorageLevel.html" title="class in org.apache.spark.storage">StorageLevel</a>&nbsp;getStorageLevel()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html#getStorageLevel()">RDD</a></code></strong></div>
<div class="block">Get the RDD's current storage level, or StorageLevel.NONE if none is set.</div>
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<dt><strong>Overrides:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#getStorageLevel()">getStorageLevel</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;void&nbsp;checkpoint()</pre>
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<div class="block">Mark this RDD for checkpointing. It will be saved to a file inside the checkpoint
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#checkpoint()">checkpoint</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;boolean&nbsp;isCheckpointed()</pre>
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<div class="block">Return whether this RDD is marked for checkpointing, either reliably or locally.</div>
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#isCheckpointed()">isCheckpointed</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;scala.Option&lt;java.lang.String&gt;&nbsp;getCheckpointFile()</pre>
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<div class="block">Gets the name of the directory to which this RDD was checkpointed.
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#getCheckpointFile()">getCheckpointFile</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;long&nbsp;count()</pre>
<div class="block">The number of vertices in the RDD.</div>
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<dd><code><a href="../../../../../org/apache/spark/rdd/RDD.html#count()">count</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;</code></dd>
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<pre>public&nbsp;&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;mapValues(scala.Function1&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,VD2&gt;&nbsp;f,
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<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#mapValues(scala.Function1, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Maps each vertex attribute, preserving the index.
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<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#mapValues(scala.Function1, scala.reflect.ClassTag)">mapValues</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - the function applied to each value in the RDD</dd><dd><code>evidence$2</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new VertexRDD with values obtained by applying <code>f</code> to each of the entries in the
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<pre>public&nbsp;&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;mapValues(scala.Function2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,VD2&gt;&nbsp;f,
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<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#mapValues(scala.Function2, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Maps each vertex attribute, additionally supplying the vertex ID.
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<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#mapValues(scala.Function2, scala.reflect.ClassTag)">mapValues</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>f</code> - the function applied to each ID-value pair in the RDD</dd><dd><code>evidence$3</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a new VertexRDD with values obtained by applying <code>f</code> to each of the entries in the
 original VertexRDD.  The resulting VertexRDD retains the same index.</dd></dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;minus(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;&nbsp;other)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#minus(org.apache.spark.rdd.RDD)">VertexRDD</a></code></strong></div>
<div class="block">For each VertexId present in both <code>this</code> and <code>other</code>, minus will act as a set difference
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<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#minus(org.apache.spark.rdd.RDD)">minus</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - an RDD to run the set operation against</dd>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;minus(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;other)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#minus(org.apache.spark.graphx.VertexRDD)">VertexRDD</a></code></strong></div>
<div class="block">For each VertexId present in both <code>this</code> and <code>other</code>, minus will act as a set difference
 operation returning only those unique VertexId's present in <code>this</code>.
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#minus(org.apache.spark.graphx.VertexRDD)">minus</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - a VertexRDD to run the set operation against</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;diff(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&gt;&nbsp;other)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#diff(org.apache.spark.rdd.RDD)">VertexRDD</a></code></strong></div>
<div class="block">For each vertex present in both <code>this</code> and <code>other</code>, <code>diff</code> returns only those vertices with
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<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#diff(org.apache.spark.rdd.RDD)">diff</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - the other RDD[(VertexId, VD)] with which to diff against.</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;diff(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;other)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#diff(org.apache.spark.graphx.VertexRDD)">VertexRDD</a></code></strong></div>
<div class="block">For each vertex present in both <code>this</code> and <code>other</code>, <code>diff</code> returns only those vertices with
 differing values; for values that are different, keeps the values from <code>other</code>. This is
 only guaranteed to work if the VertexRDDs share a common ancestor.
 <p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#diff(org.apache.spark.graphx.VertexRDD)">diff</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - the other VertexRDD with which to diff against.</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public&nbsp;&lt;VD2,VD3&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD3&gt;&nbsp;leftZipJoin(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;other,
                                   scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,scala.Option&lt;VD2&gt;,VD3&gt;&nbsp;f,
                                   scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$4,
                                   scala.reflect.ClassTag&lt;VD3&gt;&nbsp;evidence$5)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#leftZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Left joins this RDD with another VertexRDD with the same index. This function will fail if
 both VertexRDDs do not share the same index. The resulting vertex set contains an entry for
 each vertex in <code>this</code>.
 If <code>other</code> is missing any vertex in this VertexRDD, <code>f</code> is passed <code>None</code>.
 <p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#leftZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">leftZipJoin</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - the other VertexRDD with which to join.</dd><dd><code>f</code> - the function mapping a vertex id and its attributes in this and the other vertex set
 to a new vertex attribute.</dd><dd><code>evidence$4</code> - (undocumented)</dd><dd><code>evidence$5</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a VertexRDD containing the results of <code>f</code></dd></dl>
</li>
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<pre>public&nbsp;&lt;VD2,VD3&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD3&gt;&nbsp;leftJoin(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,VD2&gt;&gt;&nbsp;other,
                                scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,scala.Option&lt;VD2&gt;,VD3&gt;&nbsp;f,
                                scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$6,
                                scala.reflect.ClassTag&lt;VD3&gt;&nbsp;evidence$7)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#leftJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Left joins this VertexRDD with an RDD containing vertex attribute pairs. If the other RDD is
 backed by a VertexRDD with the same index then the efficient <code>leftZipJoin</code> implementation is
 used. The resulting VertexRDD contains an entry for each vertex in <code>this</code>. If <code>other</code> is
 missing any vertex in this VertexRDD, <code>f</code> is passed <code>None</code>. If there are duplicates,
 the vertex is picked arbitrarily.
 <p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#leftJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">leftJoin</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - the other VertexRDD with which to join</dd><dd><code>f</code> - the function mapping a vertex id and its attributes in this and the other vertex set
 to a new vertex attribute.</dd><dd><code>evidence$6</code> - (undocumented)</dd><dd><code>evidence$7</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a VertexRDD containing all the vertices in this VertexRDD with the attributes emitted
 by <code>f</code>.</dd></dl>
</li>
</ul>
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<pre>public&nbsp;&lt;U,VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;innerZipJoin(<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;U&gt;&nbsp;other,
                                  scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,U,VD2&gt;&nbsp;f,
                                  scala.reflect.ClassTag&lt;U&gt;&nbsp;evidence$8,
                                  scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$9)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#innerZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Efficiently inner joins this VertexRDD with another VertexRDD sharing the same index. See
 <code>innerJoin</code> for the behavior of the join.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#innerZipJoin(org.apache.spark.graphx.VertexRDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">innerZipJoin</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - (undocumented)</dd><dd><code>f</code> - (undocumented)</dd><dd><code>evidence$8</code> - (undocumented)</dd><dd><code>evidence$9</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<pre>public&nbsp;&lt;U,VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;innerJoin(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,U&gt;&gt;&nbsp;other,
                               scala.Function3&lt;java.lang.Object,<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>,U,VD2&gt;&nbsp;f,
                               scala.reflect.ClassTag&lt;U&gt;&nbsp;evidence$10,
                               scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$11)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#innerJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Inner joins this VertexRDD with an RDD containing vertex attribute pairs. If the other RDD is
 backed by a VertexRDD with the same index then the efficient <code>innerZipJoin</code> implementation
 is used.
 <p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#innerJoin(org.apache.spark.rdd.RDD, scala.Function3, scala.reflect.ClassTag, scala.reflect.ClassTag)">innerJoin</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>other</code> - an RDD containing vertices to join. If there are multiple entries for the same
 vertex, one is picked arbitrarily. Use <code>aggregateUsingIndex</code> to merge multiple entries.</dd><dd><code>f</code> - the join function applied to corresponding values of <code>this</code> and <code>other</code></dd><dd><code>evidence$10</code> - (undocumented)</dd><dd><code>evidence$11</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a VertexRDD co-indexed with <code>this</code>, containing only vertices that appear in both
         <code>this</code> and <code>other</code>, with values supplied by <code>f</code></dd></dl>
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<pre>public&nbsp;&lt;VD2&gt;&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;VD2&gt;&nbsp;aggregateUsingIndex(<a href="../../../../../org/apache/spark/rdd/RDD.html" title="class in org.apache.spark.rdd">RDD</a>&lt;scala.Tuple2&lt;java.lang.Object,VD2&gt;&gt;&nbsp;messages,
                                       scala.Function2&lt;VD2,VD2,VD2&gt;&nbsp;reduceFunc,
                                       scala.reflect.ClassTag&lt;VD2&gt;&nbsp;evidence$12)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#aggregateUsingIndex(org.apache.spark.rdd.RDD, scala.Function2, scala.reflect.ClassTag)">VertexRDD</a></code></strong></div>
<div class="block">Aggregates vertices in <code>messages</code> that have the same ids using <code>reduceFunc</code>, returning a
 VertexRDD co-indexed with <code>this</code>.
 <p></div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#aggregateUsingIndex(org.apache.spark.rdd.RDD, scala.Function2, scala.reflect.ClassTag)">aggregateUsingIndex</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Parameters:</span></dt><dd><code>messages</code> - an RDD containing messages to aggregate, where each message is a pair of its
 target vertex ID and the message data</dd><dd><code>reduceFunc</code> - the associative aggregation function for merging messages to the same vertex</dd><dd><code>evidence$12</code> - (undocumented)</dd>
<dt><span class="strong">Returns:</span></dt><dd>a VertexRDD co-indexed with <code>this</code>, containing only vertices that received messages.
 For those vertices, their values are the result of applying <code>reduceFunc</code> to all received
 messages.</dd></dl>
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<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;reverseRoutingTables()</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#reverseRoutingTables()">VertexRDD</a></code></strong></div>
<div class="block">Returns a new <code>VertexRDD</code> reflecting a reversal of all edge directions in the corresponding
 <a href="../../../../../org/apache/spark/graphx/EdgeRDD.html" title="class in org.apache.spark.graphx"><code>EdgeRDD</code></a>.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#reverseRoutingTables()">reverseRoutingTables</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
<dt><span class="strong">Returns:</span></dt><dd>(undocumented)</dd></dl>
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<h4>withEdges</h4>
<pre>public&nbsp;<a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;&nbsp;withEdges(<a href="../../../../../org/apache/spark/graphx/EdgeRDD.html" title="class in org.apache.spark.graphx">EdgeRDD</a>&lt;?&gt;&nbsp;edges)</pre>
<div class="block"><strong>Description copied from class:&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#withEdges(org.apache.spark.graphx.EdgeRDD)">VertexRDD</a></code></strong></div>
<div class="block">Prepares this VertexRDD for efficient joins with the given EdgeRDD.</div>
<dl>
<dt><strong>Specified by:</strong></dt>
<dd><code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html#withEdges(org.apache.spark.graphx.EdgeRDD)">withEdges</a></code>&nbsp;in class&nbsp;<code><a href="../../../../../org/apache/spark/graphx/VertexRDD.html" title="class in org.apache.spark.graphx">VertexRDD</a>&lt;<a href="../../../../../org/apache/spark/graphx/impl/VertexRDDImpl.html" title="type parameter in VertexRDDImpl">VD</a>&gt;</code></dd>
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