Class SourceStreamlet<R>
- java.lang.Object
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- org.apache.heron.streamlet.impl.StreamletBaseImpl<R>
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- org.apache.heron.streamlet.impl.StreamletImpl<R>
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- org.apache.heron.streamlet.impl.streamlets.SourceStreamlet<R>
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- All Implemented Interfaces:
Streamlet<R>
,StreamletBase<R>
public class SourceStreamlet<R> extends StreamletImpl<R>
SourceStreamlet is a very quick and flexible way of creating a Streamlet from a user supplied Generator Function. The Generator function is the source of all tuples for this Streamlet.
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Nested Class Summary
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Nested classes/interfaces inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
StreamletBaseImpl.StreamletNamePrefix
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Field Summary
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Fields inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
name, nPartitions
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Constructor Summary
Constructors Constructor Description SourceStreamlet(Source<R> generator)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
doBuild(TopologyBuilder bldr, Set<String> stageNames)
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Methods inherited from class org.apache.heron.streamlet.impl.StreamletImpl
applyOperator, applyOperator, clone, consume, countByKey, countByKeyAndWindow, filter, flatMap, getAvailableStreamIds, getStreamId, join, join, keyBy, keyBy, log, map, reduceByKey, reduceByKey, reduceByKeyAndWindow, reduceByKeyAndWindow, repartition, repartition, setName, setNumPartitions, split, toSink, transform, union, withStream
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Methods inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
addChild, build, getChildren, getName, getNumPartitions, isBuilt, isFullyBuilt, setDefaultNameIfNone
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.heron.streamlet.Streamlet
getName, getNumPartitions
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Method Detail
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doBuild
public boolean doBuild(TopologyBuilder bldr, Set<String> stageNames)
- Specified by:
doBuild
in classStreamletBaseImpl<R>
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