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| <h1 title="Package" class="title">Package org.apache.gearpump.streaming.partitioner</h1> |
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| <th class="colFirst" scope="col">Interface</th> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/MulticastPartitioner.html" title="interface in org.apache.gearpump.streaming.partitioner">MulticastPartitioner</a></td> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/Partitioner.html" title="interface in org.apache.gearpump.streaming.partitioner">Partitioner</a></td> |
| <td class="colLast"> |
| <div class="block">For processor chain: A (3 tasks) -> B (3 tasks), partitioner decide how ONE task |
| of upstream processor A send to several tasks of downstream processor B.</div> |
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| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/PartitionerFactory.html" title="interface in org.apache.gearpump.streaming.partitioner">PartitionerFactory</a></td> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/UnicastPartitioner.html" title="interface in org.apache.gearpump.streaming.partitioner">UnicastPartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">For processor chain: A (3 tasks) -> B (3 tasks), UnicastPartitioner does |
| ONE-task -> ONE-task mapping.</div> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/BroadcastPartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">BroadcastPartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">Used by storm module to broadcast message to all downstream tasks</div> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/CoLocationPartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">CoLocationPartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">Will have the same parallelism with last processor |
| And each task in current processor will co-locate with task of last processor</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/GroupByPartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">GroupByPartitioner</a><T,GROUP></td> |
| <td class="colLast"> |
| <div class="block">Partition messages by applying group by function first.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/GroupByPartitionerSpec.html" title="class in org.apache.gearpump.streaming.partitioner">GroupByPartitionerSpec</a></td> |
| <td class="colLast"> </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/GroupByPartitionerSpec.People.html" title="class in org.apache.gearpump.streaming.partitioner">GroupByPartitionerSpec.People</a></td> |
| <td class="colLast"> </td> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/GroupByPartitionerSpec.People$.html" title="class in org.apache.gearpump.streaming.partitioner">GroupByPartitionerSpec.People$</a></td> |
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| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/HashPartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">HashPartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">Only make sense when the message has implemented the hashCode() |
| Otherwise, it will use Object.hashCode(), which will not return |
| same hash code after serialization and deserialization.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/PartitionerByClassName.html" title="class in org.apache.gearpump.streaming.partitioner">PartitionerByClassName</a></td> |
| <td class="colLast"> |
| <div class="block">Store the partitioner in class Name, the user need to instantiate a new class</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/PartitionerDescription.html" title="class in org.apache.gearpump.streaming.partitioner">PartitionerDescription</a></td> |
| <td class="colLast"> |
| <div class="block">param: partitionerFactory How we construct a Partitioner.</div> |
| </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/PartitionerObject.html" title="class in org.apache.gearpump.streaming.partitioner">PartitionerObject</a></td> |
| <td class="colLast"> |
| <div class="block">Stores the Partitioner in an object.</div> |
| </td> |
| </tr> |
| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/PartitionerSpec.html" title="class in org.apache.gearpump.streaming.partitioner">PartitionerSpec</a></td> |
| <td class="colLast"> </td> |
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| <tr class="rowColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/ShuffleGroupingPartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">ShuffleGroupingPartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">The idea of ShuffleGroupingPartitioner is derived from Storm.</div> |
| </td> |
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| <tr class="altColor"> |
| <td class="colFirst"><a href="../../../../../org/apache/gearpump/streaming/partitioner/ShufflePartitioner.html" title="class in org.apache.gearpump.streaming.partitioner">ShufflePartitioner</a></td> |
| <td class="colLast"> |
| <div class="block">Round Robin partition the data to downstream processor tasks.</div> |
| </td> |
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