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| <h2 title="Interface TaskInterface" class="title">Interface TaskInterface</h2> |
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| <dd><a href="../../../../io/gearpump/streaming/sink/DataSinkTask.html" title="class in io.gearpump.streaming.sink">DataSinkTask</a>, <a href="../../../../io/gearpump/streaming/source/DataSourceTask.html" title="class in io.gearpump.streaming.source">DataSourceTask</a>, <a href="../../../../io/gearpump/streaming/dsl/plan/OpTranslator.GroupByTask.html" title="class in io.gearpump.streaming.dsl.plan">OpTranslator.GroupByTask</a>, <a href="../../../../io/gearpump/streaming/dsl/plan/OpTranslator.SinkTask.html" title="class in io.gearpump.streaming.dsl.plan">OpTranslator.SinkTask</a>, <a href="../../../../io/gearpump/streaming/dsl/plan/OpTranslator.SourceTask.html" title="class in io.gearpump.streaming.dsl.plan">OpTranslator.SourceTask</a>, <a href="../../../../io/gearpump/streaming/dsl/plan/OpTranslator.TransformTask.html" title="class in io.gearpump.streaming.dsl.plan">OpTranslator.TransformTask</a>, <a href="../../../../io/gearpump/streaming/state/api/PersistentTask.html" title="class in io.gearpump.streaming.state.api">PersistentTask</a>, <a href="../../../../io/gearpump/streaming/task/Task.html" title="class in io.gearpump.streaming.task">Task</a>, <a href="../../../../io/gearpump/streaming/javaapi/Task.html" title="class in io.gearpump.streaming.javaapi">Task</a>, <a href="../../../../io/gearpump/streaming/task/TaskWrapper.html" title="class in io.gearpump.streaming.task">TaskWrapper</a></dd> |
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| <pre>public interface <strong>TaskInterface</strong></pre> |
| <div class="block">Streaming Task interface</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../io/gearpump/streaming/task/TaskInterface.html#onNext(io.gearpump.Message)">onNext</a></strong>(io.gearpump.Message msg)</code> |
| <div class="block">Method called for each message received.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../io/gearpump/streaming/task/TaskInterface.html#onStart(io.gearpump.streaming.task.StartTime)">onStart</a></strong>(<a href="../../../../io/gearpump/streaming/task/StartTime.html" title="class in io.gearpump.streaming.task">StartTime</a> startTime)</code> |
| <div class="block">Method called with the task is initialized.</div> |
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| <td class="colFirst"><code>void</code></td> |
| <td class="colLast"><code><strong><a href="../../../../io/gearpump/streaming/task/TaskInterface.html#onStop()">onStop</a></strong>()</code> |
| <div class="block">Method called when task is under clean up.</div> |
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| <td class="colFirst"><code>scala.PartialFunction<java.lang.Object,scala.runtime.BoxedUnit></code></td> |
| <td class="colLast"><code><strong><a href="../../../../io/gearpump/streaming/task/TaskInterface.html#receiveUnManagedMessage()">receiveUnManagedMessage</a></strong>()</code> |
| <div class="block">handler for unmanaged message</div> |
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| <h4>onStart</h4> |
| <pre>void onStart(<a href="../../../../io/gearpump/streaming/task/StartTime.html" title="class in io.gearpump.streaming.task">StartTime</a> startTime)</pre> |
| <div class="block">Method called with the task is initialized.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>startTime</code> - startTime that can be used to decide from when a source producer task should replay the data source, or from when a processor task should recover its checkpoint data in to in-memory state.</dd></dl> |
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| <h4>onNext</h4> |
| <pre>void onNext(io.gearpump.Message msg)</pre> |
| <div class="block">Method called for each message received.</div> |
| <dl><dt><span class="strong">Parameters:</span></dt><dd><code>msg</code> - message send by upstream tasks</dd></dl> |
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| <h4>onStop</h4> |
| <pre>void onStop()</pre> |
| <div class="block">Method called when task is under clean up. |
| This can be used to cleanup resource when the application finished.</div> |
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| <h4>receiveUnManagedMessage</h4> |
| <pre>scala.PartialFunction<java.lang.Object,scala.runtime.BoxedUnit> receiveUnManagedMessage()</pre> |
| <div class="block">handler for unmanaged message</div> |
| <dl><dt><span class="strong">Returns:</span></dt><dd>the handler</dd></dl> |
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