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

java.lang.Object
  extended by com.wewebu.ow.server.ecm.OwStandardObjectCollection.OwObjectCollectionComparator
All Implemented Interfaces:
Comparator
Enclosing class:
OwStandardObjectCollection

protected class OwStandardObjectCollection.OwObjectCollectionComparator
extends Object
implements Comparator

sort operator used in


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


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