org.apache.flink.api.java.operators.translation

Class PlanLeftUnwrappingCoGroupOperator.TupleLeftUnwrappingCoGrouper<I1,I2,OUT,K>

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.api.java.operators.translation.WrappingFunction<CoGroupFunction<I1,I2,OUT>>

org.apache.flink.api.java.operators.translation.PlanLeftUnwrappingCoGroupOperator.TupleLeftUnwrappingCoGrouper<I1,I2,OUT,K>

All Implemented Interfaces:

Serializable, CoGroupFunction<Tuple2<K,I1>,I2,OUT>, Function, RichFunction

Enclosing class:

PlanLeftUnwrappingCoGroupOperator<I1,I2,OUT,K>

public static final class PlanLeftUnwrappingCoGroupOperator.TupleLeftUnwrappingCoGrouper<I1,I2,OUT,K>
extends WrappingFunction<CoGroupFunction<I1,I2,OUT>>
implements CoGroupFunction<Tuple2<K,I1>,I2,OUT>

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.api.java.operators.translation.WrappingFunction

wrappedFunction

Method Summary

Modifier and Type	Method and Description
void	coGroup(Iterable<Tuple2<K,I1>> records1, Iterable<I2> records2, Collector<OUT> out) This method must be implemented to provide a user implementation of a coGroup.

Methods inherited from class org.apache.flink.api.java.operators.translation.WrappingFunction

close, getWrappedFunction, open, setRuntimeContext

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

coGroup

public void coGroup(Iterable<Tuple2<K,I1>> records1,
                    Iterable<I2> records2,
                    Collector<OUT> out)
             throws Exception

Description copied from interface: CoGroupFunction

This method must be implemented to provide a user implementation of a coGroup. It is called for each pair of element groups where the elements share the same key.

Specified by:

coGroup in interface CoGroupFunction<Tuple2<K,I1>,I2,OUT>

Parameters:

records1 - The records from the first input.

records2 - The records from the second.

out - A collector to return elements.

Throws:

Exception - The function may throw Exceptions, which will cause the program to cancel, and may trigger the recovery logic.