001    /*
002      Copyright (C) 2001-2003 Laurent Martelli <laurent@aopsys.com>
003    
004      This program is free software; you can redistribute it and/or modify
005      it under the terms of the GNU Lesser General Public License as
006      published by the Free Software Foundation; either version 2 of the
007      License, or (at your option) any later version.
008    
009      This program is distributed in the hope that it will be useful,
010      but WITHOUT ANY WARRANTY; without even the implied warranty of
011      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
012      GNU Lesser General Public License for more details.
013    
014      You should have received a copy of the GNU Lesser General Public License
015      along with this program; if not, write to the Free Software
016      Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
017    
018    package org.objectweb.jac.aspects.persistence;
019    
020    /**
021     * An implementation of OID with a long
022     *
023     */
024    
025    public class LongOID extends OID {
026        private long oid = 0;
027        public LongOID(Storage storage, long oid) {
028            super(storage);
029            this.oid = oid;
030        }
031        public long getOID() {
032            return oid;
033        }
034        public String localId() {
035            return ""+oid;
036        }
037    
038        public boolean equals(Object obj) {
039            return (obj instanceof LongOID)
040                && (oid == ((LongOID)obj).getOID())
041                && (storage == ((OID)obj).storage);
042        }
043        public String toString() {
044            return Long.toString(oid)+"@"+storage.getId();
045        }   
046        public int hashCode() {
047            return (int)(oid ^ (oid >>> 32));
048        }
049    }