com.tangosol.util.aggregator
Class CompositeAggregator.Parallel

java.lang.Object
  com.tangosol.util.Base
      com.tangosol.util.BitHelper
          com.tangosol.util.ExternalizableHelper
              com.tangosol.util.aggregator.CompositeAggregator
                  com.tangosol.util.aggregator.CompositeAggregator.Parallel

All Implemented Interfaces:

ExternalizableLite, PortableObject, InvocableMap.EntryAggregator, InvocableMap.ParallelAwareAggregator, Serializable

Enclosing class:

CompositeAggregator

public static class CompositeAggregator.Parallel
extends CompositeAggregator
implements InvocableMap.ParallelAwareAggregator

Parallel implementation of the CompositeAggregator.

Nested Class Summary

Nested classes/interfaces inherited from class com.tangosol.util.aggregator.CompositeAggregator

CompositeAggregator.Parallel

Field Summary

Fields inherited from class com.tangosol.util.aggregator.CompositeAggregator

m_aAggregator

Constructor Summary

	CompositeAggregator.Parallel() Default constructor (necessary for the ExternalizableLite interface).
protected	CompositeAggregator.Parallel(InvocableMap.ParallelAwareAggregator[] aAggregator) Construct a CompositeParallelAggregator based on a specified EntryAggregator array.

Method Summary

Object	aggregateResults(Collection collResults) Aggregate the results of the parallel aggregations.
InvocableMap.EntryAggregator	getParallelAggregator() Get an aggregator that can take the place of this aggregator in situations in which the InvocableMap can aggregate in parallel.
void	readExternal(PofReader in) Restore the contents of a user type instance by reading its state using the specified PofReader object.

Methods inherited from class com.tangosol.util.aggregator.CompositeAggregator

aggregate, createInstance, equals, getAggregators, hashCode, readExternal, toString, writeExternal, writeExternal

Methods inherited from class com.tangosol.util.BitHelper

countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, toBitString, toBitString, toBitString

Methods inherited from interface com.tangosol.util.InvocableMap.EntryAggregator

aggregate

Constructor Detail

CompositeAggregator.Parallel

public CompositeAggregator.Parallel()

Default constructor (necessary for the ExternalizableLite interface).

CompositeAggregator.Parallel

protected CompositeAggregator.Parallel(InvocableMap.ParallelAwareAggregator[] aAggregator)

Construct a CompositeParallelAggregator based on a specified EntryAggregator array.

Parameters:

aAggregator - an array of ParallelAwareAggregator objects; may not be null

Method Detail

getParallelAggregator

public InvocableMap.EntryAggregator getParallelAggregator()

Get an aggregator that can take the place of this aggregator in situations in which the InvocableMap can aggregate in parallel.

Specified by:

getParallelAggregator in interface InvocableMap.ParallelAwareAggregator

Returns:

the aggregator that will be run in parallel

aggregateResults

public Object aggregateResults(Collection collResults)

Aggregate the results of the parallel aggregations.

Specified by:

aggregateResults in interface InvocableMap.ParallelAwareAggregator

Returns:

the aggregation of the parallel aggregation results

readExternal

public void readExternal(PofReader in)
                  throws IOException

Restore the contents of a user type instance by reading its state using the specified PofReader object.

Specified by:

readExternal in interface PortableObject

Overrides:

readExternal in class CompositeAggregator

Parameters:

in - the PofReader from which to read the object's state

Throws:

IOException - if an I/O error occurs