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 <h2 title="Class Stream" class="title">Class Stream</h2>
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 <pre>public class <span class="typeNameLabel">Stream</span>
 extends <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>
 implements <a href="../../../../org/apache/storm/trident/fluent/IAggregatableStream.html" title="interface in org.apache.storm.trident.fluent">IAggregatableStream</a>, <a href="../../../../org/apache/storm/topology/ResourceDeclarer.html" title="interface in org.apache.storm.topology">ResourceDeclarer</a>&lt;<a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a>&gt;</pre>
 <div class="block"><p>A Stream represents the core data model in Trident, and can be thought of as a &ldquo;stream&rdquo; of tuples that are processed as a series of small batches. A stream is partitioned accross the nodes in the cluster, and operations are applied to a stream in parallel accross each partition.</p><p><p>There are five types of operations that can be performed on streams in Trident</p><p><p>1. <strong>Partiton-Local Operations</strong> - Operations that are applied locally to each partition and do not involve network transfer 2. <strong>Repartitioning Operations</strong> - Operations that change how tuples are partitioned across tasks(thus causing network transfer), but do not change the content of the stream. 3. <strong>Aggregation Operations</strong> - Operations that <em>may</em> repartition a stream (thus causing network transfer) 4. <strong>Grouping Operations</strong> - Operations that may repartition a stream on specific fields and group together tuples whose fields values are equal. 5. <strong>Merge and Join Operations</strong> - Operations that combine different streams together.</p></div>
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 <td class="colFirst"><code>protected </code></td>
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 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#addSharedMemory-org.apache.storm.generated.SharedMemory-">addSharedMemory</a></span>(<a href="../../../../org/apache/storm/generated/SharedMemory.html" title="class in org.apache.storm.generated">SharedMemory</a>&nbsp;request)</code>
 <div class="block">Add in request for shared memory that this component will use.</div>
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 </tr>
 <tr id="i1" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
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 </tr>
 <tr id="i2" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#aggregate-org.apache.storm.trident.operation.CombinerAggregator-org.apache.storm.tuple.Fields-">aggregate</a></span>(<a href="../../../../org/apache/storm/trident/operation/CombinerAggregator.html" title="interface in org.apache.storm.trident.operation">CombinerAggregator</a>&nbsp;agg,
          <a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;functionFields)</code>&nbsp;</td>
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 <tr id="i3" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
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 </tr>
 <tr id="i4" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#aggregate-org.apache.storm.tuple.Fields-org.apache.storm.trident.operation.CombinerAggregator-org.apache.storm.tuple.Fields-">aggregate</a></span>(<a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;inputFields,
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          <a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;functionFields)</code>&nbsp;</td>
 </tr>
 <tr id="i5" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#aggregate-org.apache.storm.tuple.Fields-org.apache.storm.trident.operation.ReducerAggregator-org.apache.storm.tuple.Fields-">aggregate</a></span>(<a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;inputFields,
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          <a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;functionFields)</code>&nbsp;</td>
 </tr>
 <tr id="i6" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#aggregate-org.apache.storm.trident.operation.ReducerAggregator-org.apache.storm.tuple.Fields-">aggregate</a></span>(<a href="../../../../org/apache/storm/trident/operation/ReducerAggregator.html" title="interface in org.apache.storm.trident.operation">ReducerAggregator</a>&nbsp;agg,
          <a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;functionFields)</code>&nbsp;</td>
 </tr>
 <tr id="i7" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#applyAssembly-org.apache.storm.trident.operation.Assembly-">applyAssembly</a></span>(<a href="../../../../org/apache/storm/trident/operation/Assembly.html" title="interface in org.apache.storm.trident.operation">Assembly</a>&nbsp;assembly)</code>
 <div class="block">Applies an <code>Assembly</code> to this <code>Stream</code>.</div>
 </td>
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 <tr id="i8" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#batchGlobal--">batchGlobal</a></span>()</code>
 <div class="block">Repartitioning Operation.</div>
 </td>
 </tr>
 <tr id="i9" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#broadcast--">broadcast</a></span>()</code>
 <div class="block">Repartitioning Operation.</div>
 </td>
 </tr>
 <tr id="i10" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/fluent/ChainedAggregatorDeclarer.html" title="class in org.apache.storm.trident.fluent">ChainedAggregatorDeclarer</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#chainedAgg--">chainedAgg</a></span>()</code>&nbsp;</td>
 </tr>
 <tr id="i11" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#each-org.apache.storm.tuple.Fields-org.apache.storm.trident.operation.Filter-">each</a></span>(<a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;inputFields,
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 </tr>
 <tr id="i12" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#each-org.apache.storm.tuple.Fields-org.apache.storm.trident.operation.Function-org.apache.storm.tuple.Fields-">each</a></span>(<a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;inputFields,
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 </tr>
 <tr id="i13" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#each-org.apache.storm.trident.operation.Function-org.apache.storm.tuple.Fields-">each</a></span>(<a href="../../../../org/apache/storm/trident/operation/Function.html" title="interface in org.apache.storm.trident.operation">Function</a>&nbsp;function,
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 </tr>
 <tr id="i14" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#filter-org.apache.storm.tuple.Fields-org.apache.storm.trident.operation.Filter-">filter</a></span>(<a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a>&nbsp;inputFields,
       <a href="../../../../org/apache/storm/trident/operation/Filter.html" title="interface in org.apache.storm.trident.operation">Filter</a>&nbsp;filter)</code>
 <div class="block">Returns a stream consisting of the elements of this stream that match the given filter.</div>
 </td>
 </tr>
 <tr id="i15" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#filter-org.apache.storm.trident.operation.Filter-">filter</a></span>(<a href="../../../../org/apache/storm/trident/operation/Filter.html" title="interface in org.apache.storm.trident.operation">Filter</a>&nbsp;filter)</code>
 <div class="block">Returns a stream consisting of the elements of this stream that match the given filter.</div>
 </td>
 </tr>
 <tr id="i16" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#flatMap-org.apache.storm.trident.operation.FlatMapFunction-">flatMap</a></span>(<a href="../../../../org/apache/storm/trident/operation/FlatMapFunction.html" title="interface in org.apache.storm.trident.operation">FlatMapFunction</a>&nbsp;function)</code>
 <div class="block">Returns a stream consisting of the results of replacing each value of this stream with the contents produced by applying the provided mapping function to each value.</div>
 </td>
 </tr>
 <tr id="i17" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#flatMap-org.apache.storm.trident.operation.FlatMapFunction-org.apache.storm.tuple.Fields-">flatMap</a></span>(<a href="../../../../org/apache/storm/trident/operation/FlatMapFunction.html" title="interface in org.apache.storm.trident.operation">FlatMapFunction</a>&nbsp;function,
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 <div class="block">Returns a stream consisting of the results of replacing each value of this stream with the contents produced by applying the provided mapping function to each value.</div>
 </td>
 </tr>
 <tr id="i18" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/tuple/Fields.html" title="class in org.apache.storm.tuple">Fields</a></code></td>
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 <tr id="i19" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#global--">global</a></span>()</code>
 <div class="block">Repartitioning Operation.</div>
 </td>
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 <tr id="i20" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/fluent/GroupedStream.html" title="class in org.apache.storm.trident.fluent">GroupedStream</a></code></td>
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 <div class="block">Grouping Operation.</div>
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 <tr id="i21" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#identityPartition--">identityPartition</a></span>()</code>
 <div class="block">Repartitioning Operation.</div>
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 <tr id="i22" class="altColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#localOrShuffle--">localOrShuffle</a></span>()</code>
 <div class="block">Repartitioning Operation.</div>
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 <tr id="i23" class="rowColor">
 <td class="colFirst"><code><a href="../../../../org/apache/storm/trident/Stream.html" title="class in org.apache.storm.trident">Stream</a></code></td>
 <td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/trident/Stream.html#map-org.apache.storm.trident.operation.MapFunction-">map</a></span>(<a href="../../../../org/apache/storm/trident/operation/MapFunction.html" title="interface in org.apache.storm.trident.operation">MapFunction</a>&nbsp;function)</code>
 <div class="block">Returns a stream consisting of the result of applying the given mapping function to the values of this stream.</div>
 </td>
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 <tr id="i24" class="altColor">
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 <div class="block">This aggregator operation computes the minimum of tuples by the given <code>inputFieldName</code> and it is assumed that its value is an instance of <code>Comparable</code>.</div>
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 <div class="block"><p>Sets the CPU Load resource for the current operation.</p></div>
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 <div class="block"><p>Returns a stream of tuples which are aggregated results of a tumbling window with every <code>windowCount</code> of tuples.</p></div>
 <dl>
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 <dd><code>windowCount</code> - represents number of tuples in the window</dd>
 <dd><code>windowStoreFactory</code> - intermediary tuple store for storing windowing tuples</dd>
 <dd><code>inputFields</code> - projected fields for aggregator</dd>
 <dd><code>aggregator</code> - aggregator to run on the window of tuples to compute the result and emit to the stream.</dd>
 <dd><code>functionFields</code> - fields of values to emit with aggregation.</dd>
 <dt><span class="returnLabel">Returns:</span></dt>
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