01: /*
02: * $Header: /export/home/cvsroot/MyPersonalizerRepository/MyPersonalizer/Subsystems/Admin/Sources/es/udc/mypersonalizer/admin/model/actions/usergroupmgnt/FindGroupAction.java,v 1.1.1.1 2004/03/25 12:08:39 fbellas Exp $
03: * $Revision: 1.1.1.1 $
04: * $Date: 2004/03/25 12:08:39 $
05: *
06: * =============================================================================
07: *
08: * Copyright (c) 2003, The MyPersonalizer Development Group
09: * (http://www.tic.udc.es/~fbellas/mypersonalizer/index.html) at
10: * University Of A Coruna
11: * All rights reserved.
12: *
13: * Redistribution and use in source and binary forms, with or without
14: * modification, are permitted provided that the following conditions are met:
15: *
16: * - Redistributions of source code must retain the above copyright notice,
17: * this list of conditions and the following disclaimer.
18: *
19: * - Redistributions in binary form must reproduce the above copyright notice,
20: * this list of conditions and the following disclaimer in the documentation
21: * and/or other materials provided with the distribution.
22: *
23: * - Neither the name of the University Of A Coruna nor the names of its
24: * contributors may be used to endorse or promote products derived from
25: * this software without specific prior written permission.
26: *
27: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
28: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
31: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
32: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
33: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
34: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
35: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
36: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
37: * POSSIBILITY OF SUCH DAMAGE.
38: *
39: */
40:
41: package es.udc.mypersonalizer.admin.model.actions.usergroupmgnt;
42:
43: import java.io.Serializable;
44:
45: import es.udc.mypersonalizer.kernel.model.actions.AbstractAction;
46: import es.udc.mypersonalizer.kernel.util.exceptions.InternalErrorException;
47: import es.udc.mypersonalizer.kernel.util.exceptions.InstanceNotFoundException;
48: import es.udc.mypersonalizer.kernel.model.repository.interfaces.UserGroupAccessor;
49: import es.udc.mypersonalizer.kernel.model.repository.interfaces.RepositoryAccessorFactory;
50:
51: /**
52: * Model action for finding a specific user group in the database.
53: *
54: * @author Abel Iago Toral Quiroga
55: * @since 1.0
56: */
57: public class FindGroupAction extends AbstractAction {
58:
59: /**
60: * Finds a user specificgroup in the database using
61: * <code>UserGroupAccessor</code>
62: * @param event is a <code>Long</code> with the user group identifier
63: * @throws <code>InstanceNotFoundException</code> if group does not exist
64: * @return a {@link UserGroup} with the user group information
65: */
66: public Serializable execute(Serializable event)
67: throws InternalErrorException, InstanceNotFoundException {
68:
69: Long userGroupIdentifier = (Long) event;
70:
71: UserGroupAccessor userGroupAccessor = RepositoryAccessorFactory
72: .getInstance().createUserGroupAccessor();
73:
74: return ((Serializable) userGroupAccessor
75: .findGroup(userGroupIdentifier));
76: }
77:
78: }
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