01: package net.sourceforge.squirrel_sql.client.util;
02:
03: /*
04: * Copyright (C) 2001-2004 Colin Bell
05: * colbell@users.sourceforge.net
06: *
07: * This library is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU Lesser General Public
09: * License as published by the Free Software Foundation; either
10: * version 2.1 of the License, or (at your option) any later version.
11: *
12: * This library is distributed in the hope that it will be useful,
13: * but WITHOUT ANY WARRANTY; without even the implied warranty of
14: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15: * Lesser General Public License for more details.
16: *
17: * You should have received a copy of the GNU Lesser General Public
18: * License along with this library; if not, write to the Free Software
19: * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20: */
21: import net.sourceforge.squirrel_sql.fw.id.IIdentifier;
22: import net.sourceforge.squirrel_sql.fw.id.IIdentifierFactory;
23: import net.sourceforge.squirrel_sql.fw.id.UidIdentifierFactory;
24:
25: /**
26: * This class is a factory that generates unique identifiers for various
27: * classes within SQuirreL. All identifiers created are instances of
28: * <TT>net.sourceforge.squirrel_sql.fw.id.UidIdentifier</TT>.
29: *
30: * @author <A HREF="mailto:colbell@users.sourceforge.net">Colin Bell</A>
31: */
32: public class IdentifierFactory implements IIdentifierFactory {
33: /** The single instance of this class. */
34: private static final IIdentifierFactory s_instance = new UidIdentifierFactory();
35:
36: /**
37: * Retrieve the singleton instance of this class.
38: *
39: * @return The singleton instance of this class.
40: */
41: public static IIdentifierFactory getInstance() {
42: return s_instance;
43: }
44:
45: /**
46: * Create a new identifier.
47: *
48: * @return The new identifier.
49: */
50: public IIdentifier createIdentifier() {
51: return s_instance.createIdentifier();
52: }
53: }
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