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| <dd><a href="../../../../../org/apache/storm/streams/processors/AggregateByKeyProcessor.html" title="class in org.apache.storm.streams.processors">AggregateByKeyProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/AggregateProcessor.html" title="class in org.apache.storm.streams.processors">AggregateProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/BranchProcessor.html" title="class in org.apache.storm.streams.processors">BranchProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/CoGroupByKeyProcessor.html" title="class in org.apache.storm.streams.processors">CoGroupByKeyProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/FilterProcessor.html" title="class in org.apache.storm.streams.processors">FilterProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/FlatMapProcessor.html" title="class in org.apache.storm.streams.processors">FlatMapProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/FlatMapValuesProcessor.html" title="class in org.apache.storm.streams.processors">FlatMapValuesProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/ForEachProcessor.html" title="class in org.apache.storm.streams.processors">ForEachProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/JoinProcessor.html" title="class in org.apache.storm.streams.processors">JoinProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/MapProcessor.html" title="class in org.apache.storm.streams.processors">MapProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/MapValuesProcessor.html" title="class in org.apache.storm.streams.processors">MapValuesProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/MergeAggregateByKeyProcessor.html" title="class in org.apache.storm.streams.processors">MergeAggregateByKeyProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/MergeAggregateProcessor.html" title="class in org.apache.storm.streams.processors">MergeAggregateProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/PeekProcessor.html" title="class in org.apache.storm.streams.processors">PeekProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/ReduceByKeyProcessor.html" title="class in org.apache.storm.streams.processors">ReduceByKeyProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/ReduceProcessor.html" title="class in org.apache.storm.streams.processors">ReduceProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/StateQueryProcessor.html" title="class in org.apache.storm.streams.processors">StateQueryProcessor</a>, <a href="../../../../../org/apache/storm/streams/processors/UpdateStateByKeyProcessor.html" title="class in org.apache.storm.streams.processors">UpdateStateByKeyProcessor</a></dd> |
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| <pre><a href="../../../../../org/apache/storm/annotation/InterfaceStability.Unstable.html" title="annotation in org.apache.storm.annotation">@InterfaceStability.Unstable</a> |
| public interface <span class="typeNameLabel">Processor<T></span> |
| extends <a href="https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</a></pre> |
| <div class="block"><p>A processor processes a stream of elements and produces some result.</p></div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/streams/processors/Processor.html#execute-T-java.lang.String-">execute</a></span>(<a href="../../../../../org/apache/storm/streams/processors/Processor.html" title="type parameter in Processor">T</a> input, |
| <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> streamId)</code> |
| <div class="block">Executes some operations on the input and possibly emits some results.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/streams/processors/Processor.html#init-org.apache.storm.streams.processors.ProcessorContext-">init</a></span>(<a href="../../../../../org/apache/storm/streams/processors/ProcessorContext.html" title="interface in org.apache.storm.streams.processors">ProcessorContext</a> context)</code> |
| <div class="block">Initializes the processor.</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/storm/streams/processors/Processor.html#punctuate-java.lang.String-">punctuate</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> stream)</code> |
| <div class="block">Punctuation marks end of a batch which can be used to compute and pass the results of one stage in the pipeline to the next.</div> |
| </td> |
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| <h4>init</h4> |
| <pre>void init(<a href="../../../../../org/apache/storm/streams/processors/ProcessorContext.html" title="interface in org.apache.storm.streams.processors">ProcessorContext</a> context)</pre> |
| <div class="block"><p>Initializes the processor. This is typically invoked from the underlying storm bolt’s prepare method.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>context</code> - the processor context</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="execute-java.lang.Object-java.lang.String-"> |
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| <h4>execute</h4> |
| <pre>void execute(<a href="../../../../../org/apache/storm/streams/processors/Processor.html" title="type parameter in Processor">T</a> input, |
| <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> streamId)</pre> |
| <div class="block"><p>Executes some operations on the input and possibly emits some results.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>input</code> - the input to be processed</dd> |
| <dd><code>streamId</code> - the source stream id from where the input is received</dd> |
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| <h4>punctuate</h4> |
| <pre>void punctuate(<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> stream)</pre> |
| <div class="block"><p>Punctuation marks end of a batch which can be used to compute and pass the results of one stage in the pipeline to the next. For e.g. emit the results of an aggregation.</p></div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>stream</code> - the stream id on which the punctuation arrived</dd> |
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