water.exec
Class SliceFilter

java.lang.Object
  jsr166y.ForkJoinTask<java.lang.Void>
      jsr166y.CountedCompleter
          water.H2O.H2OCountedCompleter
              water.DTask<T>
                  water.DRemoteTask<T>
                      water.MRTask
                          water.exec.SliceFilter

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.concurrent.Future<java.lang.Void>, Freezable

public class SliceFilter
extends MRTask

Slice filter! This filter is invoked on DEST, not on source argument!!!

See Also:

Serialized Form

Field Summary

Fields inherited from class water.MRTask

_hi, _lo

Fields inherited from class water.DRemoteTask

_fs, _is_local, _keys

Fields inherited from class water.DTask

_cls, _eFromNode, _exception, _fname, _lineNum, _msg, _mth

Constructor Summary

SliceFilter(Key source, long start, long length)

Method Summary

static int	chunkSize(Key k, long aryLength, int rowSize)
void	map(Key key) Run some useful function over this local key, and record the results in the this MRTask.
void	reduce(DRemoteTask drt)

Methods inherited from class water.MRTask

hi, init, lcompute, lo, lonCompletion, memOverheadPerChunk, onExceptionalCompletion

Methods inherited from class water.DRemoteTask

alsoBlockFor, alsoBlockFor, clone, compute2, dfork, getFutures, invoke, invokeOnAllNodes, keys, onCompletion, reduceAlsoBlock

Methods inherited from class water.DTask

copyOver, dinvoke, frozenType, getDException, hasException, logVerbose, newInstance, onAck, onAckAck, read, setException, toDocField, write, writeJSONFields

Methods inherited from class water.H2O.H2OCountedCompleter

compute, priority

Methods inherited from class jsr166y.CountedCompleter

addToPendingCount, compareAndSetPendingCount, complete, exec, getCompleter, getPendingCount, getRawResult, setCompleter, setPendingCount, setRawResult, tryComplete

Methods inherited from class jsr166y.ForkJoinTask

adapt, adapt, adapt, cancel, compareAndSetForkJoinTaskTag, completeExceptionally, fork, get, get, getException, getForkJoinTaskTag, getPool, getQueuedTaskCount, getSurplusQueuedTaskCount, helpQuiesce, inForkJoinPool, invoke, invokeAll, invokeAll, invokeAll, isCancelled, isCompletedAbnormally, isCompletedNormally, isDone, join, peekNextLocalTask, pollNextLocalTask, pollTask, quietlyComplete, quietlyInvoke, quietlyJoin, reinitialize, setForkJoinTaskTag, tryUnfork

Methods inherited from class java.lang.Object

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

Constructor Detail

SliceFilter

public SliceFilter(Key source,
                   long start,
                   long length)

Method Detail

map

public void map(Key key)

Description copied from class: MRTask

Run some useful function over this local key, and record the results in the this MRTask.

Specified by:

map in class MRTask

reduce

public void reduce(DRemoteTask drt)

Specified by:

reduce in class DRemoteTask

chunkSize

public static int chunkSize(Key k,
                            long aryLength,
                            int rowSize)