com.tangosol.util.aggregator
Class BigDecimalMin

java.lang.Object
  com.tangosol.util.Base
      com.tangosol.util.BitHelper
          com.tangosol.util.ExternalizableHelper
              com.tangosol.util.aggregator.AbstractAggregator
                  com.tangosol.util.aggregator.AbstractBigDecimalAggregator
                      com.tangosol.util.aggregator.BigDecimalMin

All Implemented Interfaces:

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

public class BigDecimalMin
extends AbstractBigDecimalAggregator

Calculates a minimum of numeric values extracted from a set of entries in a Map in a form of a BigDecimal value. All the extracted objects will be treated as BigDecimal, BigInteger or Java double values. If the set of entries is empty, a null result is returned.

Since:

Coherence 3.2

Author:

gg 2006.07.18

Field Summary

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

m_count, m_decResult

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

m_fParallel

Constructor Summary

BigDecimalMin()
Default constructor (necessary for the ExternalizableLite interface).

BigDecimalMin(String sMethod)
Construct a BigDecimalMin aggregator.

BigDecimalMin(ValueExtractor extractor)
Construct a BigDecimalMin aggregator.

Method Summary

protected void

process(Object o, boolean fFinal) Incorporate one aggregatable value into the result.

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

ensureBigDecimal, finalizeResult, init

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

aggregate, aggregateResults, equals, getParallelAggregator, getValueExtractor, hashCode, readExternal, readExternal, toString, writeExternal, writeExternal

Methods inherited from class com.tangosol.util.BitHelper

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

Constructor Detail

BigDecimalMin

public BigDecimalMin()

Default constructor (necessary for the ExternalizableLite interface).

BigDecimalMin

public BigDecimalMin(ValueExtractor extractor)

Construct a BigDecimalMin aggregator.

Parameters:

extractor - the extractor that provides a value in the form of any Java object that is a Number

BigDecimalMin

public BigDecimalMin(String sMethod)

Construct a BigDecimalMin aggregator.

Parameters:

sMethod - the name of the method that returns a value in the form of any Java object that is a Number

Method Detail

process

protected void process(Object o,
                       boolean fFinal)

Incorporate one aggregatable value into the result.

If the fFinal parameter is true, the given object is a partial result (returned by an individual parallel aggregator) that should be incorporated into the final result; otherwise, the object is a value extracted from an InvocableMap.Entry.

Specified by:

process in class AbstractAggregator

Parameters:

o - the value to incorporate into the aggregated result

fFinal - true to indicate that the given object is a partial result returned by a parallel aggregator