Class KeyByStreamlet<R,K,V>
- java.lang.Object
-
- org.apache.heron.streamlet.impl.StreamletBaseImpl<R>
-
- org.apache.heron.streamlet.impl.StreamletImpl<KeyValue<K,V>>
-
- org.apache.heron.streamlet.impl.streamlets.KeyByStreamlet<R,K,V>
-
- All Implemented Interfaces:
Streamlet<KeyValue<K,V>>
,StreamletBase<KeyValue<K,V>>
public class KeyByStreamlet<R,K,V> extends StreamletImpl<KeyValue<K,V>>
KeyByStreamlet represents a KVStreamlet that is the result of applying key and value extractors on all elements.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
StreamletBaseImpl.StreamletNamePrefix
-
-
Field Summary
-
Fields inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
name, nPartitions
-
-
Constructor Summary
Constructors Constructor Description KeyByStreamlet(StreamletImpl<R> parent, SerializableFunction<R,K> keyExtractor, SerializableFunction<R,V> valueExtractor)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
doBuild(TopologyBuilder bldr, Set<String> stageNames)
-
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
-
Methods inherited from class org.apache.heron.streamlet.impl.StreamletBaseImpl
addChild, build, getChildren, getName, getNumPartitions, isBuilt, isFullyBuilt, setDefaultNameIfNone
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface org.apache.heron.streamlet.Streamlet
getName, getNumPartitions
-
-
-
-
Constructor Detail
-
KeyByStreamlet
public KeyByStreamlet(StreamletImpl<R> parent, SerializableFunction<R,K> keyExtractor, SerializableFunction<R,V> valueExtractor)
-
-
Method Detail
-
doBuild
public boolean doBuild(TopologyBuilder bldr, Set<String> stageNames)
- Specified by:
doBuild
in classStreamletBaseImpl<KeyValue<K,V>>
-
-