/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
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 * 
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 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
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package com.sun.appserv.management.util.jmx;

import javax.management.ObjectName;

public final class ObjectNameComparator implements java.util.Comparator<ObjectName>
{
	public static final ObjectNameComparator	INSTANCE	= new ObjectNameComparator();
	
	private	ObjectNameComparator()	{}
	
		public int
	compare( final ObjectName o1, final ObjectName o2 )
	{
	    int result  = 0;
	    
	    if ( o1 == null && o2 == null )
	    {
	        result  = 0;
	    }
	    else if ( o1 == null )
	    {
	        result  = -1;
	    }
	    else if ( o2 == null )
	    {
	        result  = 1;
	    }
	    else
	    {
    		final String name1	= JMXUtil.toString( o1 );
    		final String name2	= JMXUtil.toString( o2 );
    		
    		result  = name1.toString().compareTo( name2.toString() );
		}
		
		return result;
	}
	
		public boolean
	equals( final Object other )
	{
		return( other instanceof ObjectNameComparator );
	}
}