01: /* PAT: Persistent Applications Toolkit (patsystem.sf.net)
02: * Copyright (C) 2004, 2005 Tomasz Nazar, nthx at irc dot pl
03: *
04: * This library is free software; you can redistribute it and/or
05: * modify it under the terms of the GNU Lesser General Public
06: * License as published by the Free Software Foundation; either
07: * version 2 of the License, or (at your option) any later version.
08: *
09: * This library is distributed in the hope that it will be useful,
10: * but WITHOUT ANY WARRANTY; without even the implied warranty of
11: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12: * Lesser General Public License for more details.
13: *
14: * You should have received a copy of the GNU Lesser General Public
15: * License along with this library; if not, write to the Free Software
16: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17: *
18: * Full version of the license is /docs/LICENSE.txt
19: */
20: package org.nthx.pat;
21:
22: import org.apache.log4j.Logger;
23:
24: /** Mixin for {@link Identifiable} interface - actual implementation introduced
25: * to all BOs.
26: *
27: * @version $Id: IdentifiableMixin.java 3725 2005-06-09 23:57:03Z nthx $
28: * @author nthx@users.sourceforge.net
29: */
30: public class IdentifiableMixin implements Identifiable {
31: //--- Fields ----------------
32: protected Long oid;
33:
34: public IdentifiableMixin() {
35: }
36:
37: public Long getOID() {
38: return oid;
39: }
40:
41: public void setOID(Long oid) {
42: if (null != getOID())
43: throw new IllegalStateException("OID is already set: "
44: + oid);
45: this .oid = oid;
46: }
47:
48: final static long serialVersionUID = 1L;
49: protected final static Logger logMain = Logger.getLogger("pat");
50: }
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