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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, java.io.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

java.lang.Object	aggregateResults(java.util.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(java.io.DataInput in) Restore the contents of this object by loading the object's state from the passed DataInput object.
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, toString, writeExternal, writeExternal

Methods inherited from class com.tangosol.util.BitHelper

countBits, countBits, countBits, indexOfLSB, indexOfLSB, indexOfLSB, indexOfMSB, indexOfMSB, indexOfMSB, rotateLeft, rotateLeft, rotateLeft, rotateRight, rotateRight, rotateRight, 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 java.lang.Object aggregateResults(java.util.Collection collResults)

Aggregate the results of the parallel aggregations.

Specified by:

aggregateResults in interface InvocableMap.ParallelAwareAggregator

Parameters:

collResults - the parallel aggregation results

Returns:

the aggregation of the parallel aggregation results

readExternal

public void readExternal(java.io.DataInput in)
                  throws java.io.IOException

Restore the contents of this object by loading the object's state from the passed DataInput object.

Specified by:

readExternal in interface ExternalizableLite

Overrides:

readExternal in class CompositeAggregator

Parameters:

in - the DataInput stream to read data from in order to restore the state of this object

Throws:

java.io.IOException - if an I/O exception occurs

java.io.NotActiveException - if the object is not in its initial state, and therefore cannot be deserialized into

readExternal

public void readExternal(PofReader in)
                  throws java.io.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:

java.io.IOException - if an I/O error occurs

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