com.antelmann.db
Class PropertyEntryComparator<T extends PropertyEntry>

java.lang.Object
  com.antelmann.db.PropertyEntryComparator<T>

All Implemented Interfaces:

Comparator<T>

public class PropertyEntryComparator<T extends PropertyEntry>
extends Object
implements Comparator<T>

A special comparator that compares based on given property values of an PropertyEntry. The property value itself is compared via UniversalComparator.

Since:

4. Oktober 2006, 16:20

Author:

Holger Antelmann

See Also:

UniversalComparator

Constructor Summary

PropertyEntryComparator(String... keys)
the PropertyEntry is sorted first by the first given key, then (if the first was non-descriminating) the next, and so on.

Method Summary

int	compare(T entity1, T entity2)
String[]	getComparisonKeys()
UniversalComparator	getUniversalComparator() returns the embedded UniversalComparator in use

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

Constructor Detail

PropertyEntryComparator

public PropertyEntryComparator(String... keys)

the PropertyEntry is sorted first by the first given key, then (if the first was non-descriminating) the next, and so on.

Method Detail

getUniversalComparator

public UniversalComparator getUniversalComparator()

returns the embedded UniversalComparator in use

getComparisonKeys

public String[] getComparisonKeys()

compare

public int compare(T entity1,
                   T entity2)

Specified by:

compare in interface Comparator<T extends PropertyEntry>