01: /*
02: * HA-JDBC: High-Availability JDBC
03: * Copyright (c) 2004-2007 Paul Ferraro
04: *
05: * This library is free software; you can redistribute it and/or modify it
06: * under the terms of the GNU Lesser General Public License as published by the
07: * Free Software Foundation; either version 2.1 of the License, or (at your
08: * option) any later version.
09: *
10: * This library is distributed in the hope that it will be useful, but WITHOUT
11: * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12: * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
13: * for more details.
14: *
15: * You should have received a copy of the GNU Lesser General Public License
16: * along with this library; if not, write to the Free Software Foundation,
17: * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18: *
19: * Contact: ferraro@users.sourceforge.net
20: */
21: package net.sf.hajdbc.distributable;
22:
23: import net.sf.hajdbc.DatabaseCluster;
24: import net.sf.hajdbc.StateManager;
25:
26: /**
27: * Command pattern object indicating that a database is to be activated.
28: * @author Paul Ferraro
29: * @since 1.0
30: */
31: public class ActivateCommand extends AbstractCommand {
32: private static final long serialVersionUID = 3618141143175673655L;
33:
34: /**
35: * Constructs a new DatabaseActivationCommand.
36: */
37: public ActivateCommand() {
38: // Do nothing
39: }
40:
41: /**
42: * Constructs a new DatabaseActivationCommand.
43: * @param databaseId a database identifier
44: */
45: public ActivateCommand(String databaseId) {
46: super (databaseId);
47: }
48:
49: /**
50: * @see net.sf.hajdbc.distributable.Command#execute(net.sf.hajdbc.DatabaseCluster, net.sf.hajdbc.StateManager)
51: */
52: @Override
53: public <D> Boolean execute(DatabaseCluster<D> databaseCluster,
54: StateManager stateManager) {
55: return databaseCluster.activate(databaseCluster
56: .getDatabase(this.databaseId), stateManager);
57: }
58: }
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