org.apache.openjpa.meta
Class InheritanceComparator

java.lang.Object
  org.apache.openjpa.meta.InheritanceComparator

All Implemented Interfaces:

Comparator

Direct Known Subclasses:

MetaDataInheritanceComparator

public class InheritanceComparator
extends Object
implements Comparator

Comparator that keeps classes in inheritance order.

Author:

Abe White

Constructor Summary

InheritanceComparator()

Method Summary

int	compare(Object o1, Object o2)
void	setBase(Class base) Set the least-derived type possible; defaults to Object.class.
protected Class	toClass(Object elem) Subclasses can override this method to extract the class to compare on from the elements of the collection.

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

InheritanceComparator

public InheritanceComparator()

Method Detail

setBase

public void setBase(Class base)

Set the least-derived type possible; defaults to Object.class.

toClass

protected Class toClass(Object elem)

Subclasses can override this method to extract the class to compare on from the elements of the collection.

compare

public int compare(Object o1,
                   Object o2)

Specified by:

compare in interface Comparator