org.gridgain.grid.kernal.processors.hadoop.shuffle.collections

Class GridHadoopSkipList

java.lang.Object

org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopMultimapBase

org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopSkipList

All Implemented Interfaces:

AutoCloseable, GridHadoopMultimap

public class GridHadoopSkipList
extends GridHadoopMultimapBase

Skip list.

Nested Class Summary

Nested classes/interfaces inherited from class org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopMultimapBase

GridHadoopMultimapBase.AdderBase, GridHadoopMultimapBase.ReaderBase, GridHadoopMultimapBase.ValueIterator

Nested classes/interfaces inherited from interface org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopMultimap

GridHadoopMultimap.Adder, GridHadoopMultimap.Key, GridHadoopMultimap.Value, GridHadoopMultimap.Visitor

Field Summary

Fields inherited from class org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopMultimapBase

job, mem, pageSize

Constructor Summary

Constructors

Constructor and Description
GridHadoopSkipList(org.gridgain.grid.hadoop.GridHadoopJob job, org.gridgain.grid.util.offheap.unsafe.GridUnsafeMemory mem, Comparator cmp)

Method Summary

Methods

Modifier and Type	Method and Description
org.gridgain.grid.hadoop.GridHadoopTaskInput	input(Comparator<Object> groupCmp)
GridHadoopMultimap.Adder	startAdding()
boolean	visit(boolean ignoreLastVisited, GridHadoopMultimap.Visitor v) Incrementally visits all the keys and values in the map.

Methods inherited from class org.gridgain.grid.kernal.processors.hadoop.shuffle.collections.GridHadoopMultimapBase

close, nextValue, nextValue, valueSize, valueSize

Methods inherited from class java.lang.Object

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

Constructor Detail

GridHadoopSkipList

public GridHadoopSkipList(org.gridgain.grid.hadoop.GridHadoopJob job,
                  org.gridgain.grid.util.offheap.unsafe.GridUnsafeMemory mem,
                  Comparator cmp)

Parameters:

job - Job.

mem - Memory.

cmp - Comparator for keys.

Method Detail

visit

public boolean visit(boolean ignoreLastVisited,
            GridHadoopMultimap.Visitor v)
              throws org.gridgain.grid.GridException

Incrementally visits all the keys and values in the map.

Parameters:

ignoreLastVisited - Flag indicating that visiting must be started from the beginning.

v - Visitor.

Returns:

false If visiting was impossible.

Throws:

org.gridgain.grid.GridException

startAdding

public GridHadoopMultimap.Adder startAdding()
                                     throws org.gridgain.grid.GridException

Returns:

Adder.

Throws:

org.gridgain.grid.GridException - If failed.

input

public org.gridgain.grid.hadoop.GridHadoopTaskInput input(Comparator<Object> groupCmp)
                                                   throws org.gridgain.grid.GridException

Parameters:

groupCmp - Optional grouping comparator.

Returns:

Task input.

Throws:

org.gridgain.grid.GridException - If failed.