marf.util.comparators
Class FrequencyComparator

java.lang.Object
  marf.util.SortComparator
      marf.util.comparators.FrequencyComparator

All Implemented Interfaces:

java.io.Serializable, java.util.Comparator

public class FrequencyComparator
extends SortComparator

Compares StatisticalObjects by their frequency when sorting.

$Id: FrequencyComparator.java,v 1.15 2007/12/01 00:26:51 mokhov Exp $

Since:

0.3.0.2

Version:

$Revision: 1.15 $

Author:

Serguei Mokhov

See Also:

StatisticalObject, WordStats, Serialized Form

Field Summary

private static long

serialVersionUID For serialization versioning.

Fields inherited from class marf.util.SortComparator

ASCENDING, DESCENDING, iSortMode

Constructor Summary

FrequencyComparator(int piSortMode)
Constructs a frequency comparator with the specified sort mode.

Method Summary

int	compare(java.lang.Object poStatsObject1, java.lang.Object poStatsObject2) Implementation of the Comparator interface for the StatisticalObjects.
static java.lang.String	getMARFSourceCodeRevision() Returns source code revision information.

Methods inherited from class marf.util.SortComparator

getSortMode

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

equals

Field Detail

serialVersionUID

private static final long serialVersionUID

For serialization versioning. When adding new members or make other structural changes regenerate this number with the serialver tool that comes with JDK.

Since:

0.3.0.4

See Also:

Constant Field Values

Constructor Detail

FrequencyComparator

public FrequencyComparator(int piSortMode)

Constructs a frequency comparator with the specified sort mode.

Parameters:

piSortMode - ASCENDING or DESCENDING

Method Detail

compare

public int compare(java.lang.Object poStatsObject1,
                   java.lang.Object poStatsObject2)

Implementation of the Comparator interface for the StatisticalObjects. To decide on inequality of the StatisticalObject objects we compare their frequencies only.

Parameters:

poStatsObject1 - first stats object to compare

poStatsObject2 - second stats object to compare

Returns:

0 of the frequencies are equal. Depending on the sort mode; a negative value may mean poStatsObject1 < poStatsObject2 if ASCENDING; or otherwise if DESCENDING

See Also:

Comparator.compare(java.lang.Object, java.lang.Object), StatisticalObject

getMARFSourceCodeRevision

public static java.lang.String getMARFSourceCodeRevision()

Returns source code revision information.

Returns:

revision string