org.apache.openjpa.meta

Class InheritanceComparator

java.lang.Object

org.apache.openjpa.meta.InheritanceComparator

All Implemented Interfaces:

Serializable, Comparator

Direct Known Subclasses:

MetaDataInheritanceComparator

public class InheritanceComparator
extends Object
implements Comparator, Serializable

Comparator that keeps classes in inheritance order.

Author:

Abe White

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InheritanceComparator()

Method Summary

Modifier and Type	Method and Description
int	compare(Object o1, Object o2)
Class	getBase()
void	setBase(Class base) Set the least-derived type possible; defaults to null.
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

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Detail

InheritanceComparator

public InheritanceComparator()

Method Detail

setBase

public void setBase(Class base)

Set the least-derived type possible; defaults to null.

getBase

public Class getBase()

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