com.metamatrix.common.object
Class ObjectDefinitionDisplayNameComparator

java.lang.Object
  com.metamatrix.common.object.ObjectDefinitionDisplayNameComparator

All Implemented Interfaces:

java.util.Comparator

public class ObjectDefinitionDisplayNameComparator
extends java.lang.Object
implements java.util.Comparator

This class serves as a name-based comparator of MetaObject instances. Normal equality and comparison of MetaObject instances is solely based upon the global identifier. This class provides a means of comparing two metadata entities based solely upon their full name.

Constructor Summary

ObjectDefinitionDisplayNameComparator()

Method Summary

int	compare(java.lang.Object obj1, java.lang.Object obj2) Compares the two arguments for order.
boolean	equals(java.lang.Object obj) Returns true if the specified object is semantically equal to this comparator instance.

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ObjectDefinitionDisplayNameComparator

public ObjectDefinitionDisplayNameComparator()

Method Detail

compare

public final int compare(java.lang.Object obj1,
                         java.lang.Object obj2)

Compares the two arguments for order. Returns a negative integer, zero, or a positive integer as this first object's name is lexicographically less than, equal to, or greater than (respectively) the second object's name. If the two objects are not instances of MetaObject, this method throws a ClassCastException.

Specified by:

compare in interface java.util.Comparator

Parameters:

obj1 - the first MetaObject instance to be compared

obj2 - the second MetaObject instance to be compared

Returns:

a negative integer, zero, or a positive integer as this first object's name is lexicographically less than, equal to, or greater than (respectively) the second object's name.

Throws:

java.lang.IllegalArgumentException - if the specified object reference is null

java.lang.ClassCastException - if the specified objects' types prevent them from being compared by this comparator.

equals

public boolean equals(java.lang.Object obj)

Returns true if the specified object is semantically equal to this comparator instance.

Specified by:

equals in interface java.util.Comparator

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object that this instance is to be compared to.

Returns:

whether the object is equal to this object.