public class ReduceWithKeyOperator extends ReduceOperatorBase<ReduceWithKeyFunction>
Map works on a single input and calls the first-order user function of a eu.stratosphere.pact.common.stub.MapStub
for each record independently.
ReduceFunctionReduceOperatorBase.CombinableinputstubcompilerHints, name, ocs, parameters| Constructor and Description |
|---|
ReduceWithKeyOperator(Class<? extends ReduceWithKeyFunction> udf,
int keyPosition,
String name) |
ReduceWithKeyOperator(ReduceWithKeyFunction udf,
int keyPosition,
String name) |
isCombinableaccept, addInput, addInputs, clearInputs, getInputs, getKeyColumns, getNumberOfInputs, setInput, setInputsasArray, emptyClassArray, getUserCodeWrappergetCompilerHints, getDegreeOfParallelism, getName, getParameters, getUserCodeAnnotation, setDegreeOfParallelism, setName, setParameter, setParameter, setParameter, toStringpublic ReduceWithKeyOperator(Class<? extends ReduceWithKeyFunction> udf, int keyPosition, String name)
public ReduceWithKeyOperator(ReduceWithKeyFunction udf, int keyPosition, String name)
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