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

Class CombineToGroupCombineWrapper<IN,OUT,F extends org.apache.flink.api.common.functions.CombineFunction<IN,IN> & org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>>

java.lang.Object

org.apache.flink.api.java.operators.translation.CombineToGroupCombineWrapper<IN,OUT,F>

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.GroupCombineFunction<IN,IN>, org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>

@Internal
public class CombineToGroupCombineWrapper<IN,OUT,F extends org.apache.flink.api.common.functions.CombineFunction<IN,IN> & org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>>
extends Object
implements org.apache.flink.api.common.functions.GroupCombineFunction<IN,IN>, org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>

A wrapper the wraps a function that implements both CombineFunction and GroupReduceFunction interfaces and makes it look like a function that implements GroupCombineFunction and GroupReduceFunction to the runtime.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
CombineToGroupCombineWrapper(F wrappedFunction)

Method Summary

Modifier and Type	Method	Description
void	combine(Iterable<IN> values, org.apache.flink.util.Collector<IN> out)
void	reduce(Iterable<IN> values, org.apache.flink.util.Collector<OUT> out)

Methods inherited from class java.lang.Object

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

Constructor Detail

CombineToGroupCombineWrapper

public CombineToGroupCombineWrapper(F wrappedFunction)

Method Detail

combine

public void combine(Iterable<IN> values,
                    org.apache.flink.util.Collector<IN> out)
             throws Exception

Specified by:

combine in interface org.apache.flink.api.common.functions.GroupCombineFunction<IN,OUT>

Throws:

Exception

reduce

public void reduce(Iterable<IN> values,
                   org.apache.flink.util.Collector<OUT> out)
            throws Exception

Specified by:

reduce in interface org.apache.flink.api.common.functions.GroupReduceFunction<IN,OUT>

Throws:

Exception