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com.tangosol.util.aggregator
Class ComparableMax
java.lang.Object
com.tangosol.util.Base
com.tangosol.util.BitHelper
com.tangosol.util.ExternalizableHelper
com.tangosol.util.aggregator.AbstractAggregator
com.tangosol.util.aggregator.AbstractComparableAggregator
com.tangosol.util.aggregator.ComparableMax
- All Implemented Interfaces:
- ExternalizableLite, PortableObject, InvocableMap.EntryAggregator, InvocableMap.ParallelAwareAggregator, java.io.Serializable
-
public class ComparableMax
- extends AbstractComparableAggregator
Calculates a maximum among values extracted from a set of entries in a Map. This aggregator is most commonly used with objects that implement Comparable
such as String
or Date
; a Comparator
can also be supplied to perform the comparisons.
- Since:
- Coherence 3.2
- Author:
- gg 2006.02.13
Method Summary |
protected void |
process(java.lang.Object o, boolean fFinal)
Incorporate one aggregatable value into the result. |
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 |
ComparableMax
public ComparableMax()
- Default constructor (necessary for the ExternalizableLite interface).
ComparableMax
public ComparableMax(ValueExtractor extractor)
- Construct a ComparableMax aggregator.
- Parameters:
extractor
- the extractor that provides a value in the form of any object that implements Comparable
interface
ComparableMax
public ComparableMax(ValueExtractor extractor,
java.util.Comparator comparator)
- Construct a ComparableMax aggregator.
- Parameters:
extractor
- the extractor that provides an object to be compared
comparator
- the comparator used to compare the extracted object
ComparableMax
public ComparableMax(java.lang.String sMethod)
- Construct a ComparableMax aggregator.
- Parameters:
sMethod
- the name of the method that returns a value in the form of any object that implements Comparable
interface
process
protected void process(java.lang.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
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