com.wewebu.ow.server.ecm

Class OwStandardObjectCollection.OwObjectCollectionComparator

java.lang.Object

com.wewebu.ow.server.ecm.OwStandardObjectCollection.OwObjectCollectionComparator

All Implemented Interfaces:

Comparator

Enclosing class:

OwStandardObjectCollection

protected static class OwStandardObjectCollection.OwObjectCollectionComparator
extends Object
implements Comparator

sort operator used in

Constructor Summary

Constructors

Constructor and Description
OwStandardObjectCollection.OwObjectCollectionComparator(OwSort.OwSortCriteria sortCriteria_p) construct a List comparator with the sort criteria

Method Summary

Methods

Modifier and Type	Method and Description
int	compare(Object o1_p, Object o2_p) Compares its two arguments for order.

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

OwStandardObjectCollection.OwObjectCollectionComparator

public OwStandardObjectCollection.OwObjectCollectionComparator(OwSort.OwSortCriteria sortCriteria_p)

construct a List comparator with the sort criteria

Parameters:

sortCriteria_p - OwSort object with a list of criteria

Method Detail

compare

public int compare(Object o1_p,
          Object o2_p)

Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second. The implementor must ensure that sgn(compare(x, y)) == -sgn(compare(y, x)) for all x and y. (This implies that compare(x, y) must throw an exception if and only if compare(y, x) throws an exception.) The implementor must also ensure that the relation is transitive: ((compare(x, y)>0) && (compare(y, z)>0)) implies compare(x, z)>0. Finally, the implementer must ensure that compare(x, y)==0 implies that sgn(compare(x, z))==sgn(compare(y, z)) for all z. It is generally the case, but not strictly required that (compare(x, y)==0) == (x.equals(y)). Generally speaking, any comparator that violates this condition should clearly indicate this fact. The recommended language is "Note: this comparator imposes orderings that are inconsistent with equals."

Specified by:

compare in interface Comparator

Parameters:

o1_p - the first object to be compared.

o2_p - the second object to be compared

Returns:

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.