org.apache.giraph.block_app.framework.piece.global_comm

Interface ReducerHandle<S,R>

Type Parameters:

S - Single value type

R - Reduced value type

All Known Implementing Classes:

CollectShardedPrimitiveReducerHandle, CollectShardedReducerHandle, CollectShardedTuplesOfPrimitivesReducerHandle, ReducersForPieceHandler.GlobalReduceHandle, ReducersForPieceHandler.LocalReduceHandle, ReducersForPieceHandler.ReduceHandleImpl, ShardedReducerHandle

public interface ReducerHandle<S,R>

Handle to a reducer.

Method Summary

Modifier and Type	Method and Description
BroadcastHandle<R>	broadcastValue(BlockMasterApi master) Broadcast reduced value from master
R	getReducedValue(MasterGlobalCommUsage master) Get reduced value
void	reduce(S valueToReduce) Reduce single value

Method Detail

reduce

void reduce(S valueToReduce)

Reduce single value

getReducedValue

R getReducedValue(MasterGlobalCommUsage master)

Get reduced value

broadcastValue

BroadcastHandle<R> broadcastValue(BlockMasterApi master)

Broadcast reduced value from master

Returns:

Handle to the broadcasted value.