cascading.operation
Interface BufferCall<C>

All Superinterfaces:

OperationCall<C>

All Known Implementing Classes:

ConcreteCall

public interface BufferCall<C>
extends OperationCall<C>

Interface BufferCall provides access to the current Buffer invocation arguments.

Method Summary

Iterator<TupleEntry>	getArgumentsIterator() Returns an Iterator of TupleEntry instances representing the arguments for the called Buffer.operate(cascading.flow.FlowProcess, BufferCall) method.
TupleEntry	getGroup() Returns the current grouping TupleEntry.
TupleEntryCollector	getOutputCollector() Returns the TupleEntryCollector used to emit result values.

Methods inherited from interface cascading.operation.OperationCall

getArgumentFields, getContext, setContext

Method Detail

getGroup

TupleEntry getGroup()

Returns the current grouping TupleEntry.

Returns:

TupleEnry

getArgumentsIterator

Iterator<TupleEntry> getArgumentsIterator()

Returns an Iterator of TupleEntry instances representing the arguments for the called Buffer.operate(cascading.flow.FlowProcess, BufferCall) method.

Returns:

Iterator

getOutputCollector

TupleEntryCollector getOutputCollector()

Returns the TupleEntryCollector used to emit result values. Zero or more entries may be emitted.

Returns:

TupleCollector