water.rapids.ast.prims.reducers

Class AstTopN.GrabTopNPQ<E extends java.lang.Comparable<E>>

java.lang.Object

jsr166y.ForkJoinTask<java.lang.Void>

jsr166y.CountedCompleter

water.H2O.H2OCountedCompleter<T>

water.DTask<T>

water.MRTask<AstTopN.GrabTopNPQ<E>>

water.rapids.ast.prims.reducers.AstTopN.GrabTopNPQ<E>

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.util.concurrent.Future<java.lang.Void>, ForkJoinPool.ManagedBlocker, Freezable<AstTopN.GrabTopNPQ<E>>

Enclosing class:

AstTopN

public class AstTopN.GrabTopNPQ<E extends java.lang.Comparable<E>>
extends MRTask<AstTopN.GrabTopNPQ<E>>

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class water.MRTask

MRTask.PostMapAction<T extends MRTask.PostMapAction<T>>

Nested classes/interfaces inherited from class water.DTask

DTask.DKeyTask<T extends DTask.DKeyTask,V extends Keyed>, DTask.RemoveCall

Field Summary

Fields inherited from class water.MRTask

_appendables, _fr, _fs, _hi, _keys, _left, _lo, _nhi, _nleft, _nlo, _nrite, _rite, _run_local, _topLocal

Fields inherited from class water.DTask

_ex

Method Summary

Modifier and Type	Method and Description
void	addOneValue(Chunk cs, int rowIndex, long absRowIndex, java.util.PriorityQueue sortHeap)
<T> void	copyPQ2ArryD(java.util.PriorityQueue sortQueue, double[] values)
void	copyPQ2ArryL(java.util.PriorityQueue sortQueue, long[] values)
void	map(Chunk cs) Override with your map implementation.
void	mergeArraysD(long[] otherRow, double[] otherValue)
void	mergeArraysL(long[] otherRow, long[] otherValue)
void	postGlobal()
void	reduce(AstTopN.GrabTopNPQ<E> other) Override to combine results from 'mrt' into 'this' MRTask.

Methods inherited from class water.MRTask

appendables, asyncExecOnAllNodes, block, closeLocal, compute2, dfork, dfork, dfork, dfork, dfork, dinvoke, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAll, doAllNodes, getResult, getResult, isReleasable, map, map, map, map, map, map, map, map, map, map, map, modifiesVolatileVecs, onCompletion, onExceptionalCompletion, outputFrame, outputFrame, outputFrame, profile, profString, self, setupLocal, withPostMapAction

Methods inherited from class water.DTask

copyOver, getDException, hasException, logVerbose, onAck, onAckAck, setException

Methods inherited from class water.H2O.H2OCountedCompleter

asBytes, clone, compute, compute1, currThrPriority, frozenType, icer, priority, read, readJSON, reloadFromBytes, write, writeJSON

Methods inherited from class jsr166y.CountedCompleter

__tryComplete, 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, 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

Method Detail

map

public void map(Chunk cs)

Description copied from class: MRTask

Override with your map implementation. This overload is given a single local input Chunk. It is meant for map/reduce jobs that use a single column in a input Frame. All map variants are called, but only one is expected to be overridden.

Overrides:

map in class MRTask<AstTopN.GrabTopNPQ<E extends java.lang.Comparable<E>>>

copyPQ2ArryL

public void copyPQ2ArryL(java.util.PriorityQueue sortQueue,
                         long[] values)

copyPQ2ArryD

public <T> void copyPQ2ArryD(java.util.PriorityQueue sortQueue,
                             double[] values)

reduce

public void reduce(AstTopN.GrabTopNPQ<E> other)

Description copied from class: MRTask

Override to combine results from 'mrt' into 'this' MRTask. Both 'this' and 'mrt' are guaranteed to either have map() run on them, or be the results of a prior reduce(). Reduce is optional if, e.g., the result is some output vector.

Overrides:

reduce in class MRTask<AstTopN.GrabTopNPQ<E extends java.lang.Comparable<E>>>

mergeArraysL

public void mergeArraysL(long[] otherRow,
                         long[] otherValue)

mergeArraysD

public void mergeArraysD(long[] otherRow,
                         double[] otherValue)

postGlobal

public void postGlobal()

Overrides:

postGlobal in class MRTask<AstTopN.GrabTopNPQ<E extends java.lang.Comparable<E>>>

addOneValue

public void addOneValue(Chunk cs,
                        int rowIndex,
                        long absRowIndex,
                        java.util.PriorityQueue sortHeap)