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Java > Open Source Codes > org > objectstyle > cayenne > access > event > SnapshotEvent


1 /* ====================================================================
2  *
3  * The ObjectStyle Group Software License, version 1.1
4  * ObjectStyle Group - http://objectstyle.org/
5  *
6  * Copyright (c) 2002-2005, Andrei (Andrus) Adamchik and individual authors
7  * of the software. All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution, if any,
22  * must include the following acknowlegement:
23  * "This product includes software developed by independent contributors
24  * and hosted on ObjectStyle Group web site (http://objectstyle.org/)."
25  * Alternately, this acknowlegement may appear in the software itself,
26  * if and wherever such third-party acknowlegements normally appear.
27  *
28  * 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse
29  * or promote products derived from this software without prior written
30  * permission. For written permission, email
31  * "andrus at objectstyle dot org".
32  *
33  * 5. Products derived from this software may not be called "ObjectStyle"
34  * or "Cayenne", nor may "ObjectStyle" or "Cayenne" appear in their
35  * names without prior written permission.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE OBJECTSTYLE GROUP OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals and hosted on ObjectStyle Group web site. For more
53  * information on the ObjectStyle Group, please see
54  * <http://objectstyle.org/>.
55  */

56 package org.objectstyle.cayenne.access.event;
57
58 import java.util.Collection JavaDoc;
59 import java.util.Collections JavaDoc;
60 import java.util.Map JavaDoc;
61
62 import org.objectstyle.cayenne.event.CayenneEvent;
63
64 /**
65  * Event sent on modification of the DataRowStore.
66  *
67  * @since 1.1
68  * @author Andrei Adamchik
69  */

70 public class SnapshotEvent extends CayenneEvent {
71
72     protected long timestamp;
73     protected Collection JavaDoc deletedIds;
74     protected Collection JavaDoc invalidatedIds;
75     protected Map JavaDoc modifiedDiffs;
76     protected Collection JavaDoc indirectlyModifiedIds;
77
78 /**
79  * @deprecated
80  */

81     public SnapshotEvent(
82             Object JavaDoc source,
83             Object JavaDoc postedBy,
84             Map JavaDoc modifiedDiffs,
85             Collection JavaDoc deletedIds,
86             Collection JavaDoc indirectlyModifiedIds) {
87                 
88         this(source, postedBy, modifiedDiffs, deletedIds, Collections.EMPTY_LIST, indirectlyModifiedIds);
89     }
90
91     public SnapshotEvent(
92             Object JavaDoc source,
93             Object JavaDoc postedBy,
94             Map JavaDoc modifiedDiffs,
95             Collection JavaDoc deletedIds,
96             Collection JavaDoc invalidatedIds,
97             Collection JavaDoc indirectlyModifiedIds) {
98                 
99         super(source, postedBy, null);
100         
101         this.timestamp = System.currentTimeMillis();
102         this.modifiedDiffs = modifiedDiffs;
103         this.deletedIds = deletedIds;
104         this.invalidatedIds = invalidatedIds;
105         this.indirectlyModifiedIds = indirectlyModifiedIds;
106     }
107
108     public long getTimestamp() {
109         return timestamp;
110     }
111  
112     public Map JavaDoc getModifiedDiffs() {
113         return (modifiedDiffs != null) ? modifiedDiffs : Collections.EMPTY_MAP;
114     }
115
116     public Collection JavaDoc getDeletedIds() {
117         return (deletedIds != null) ? deletedIds : Collections.EMPTY_LIST;
118     }
119     
120     public Collection JavaDoc getInvalidatedIds() {
121         return (invalidatedIds != null) ? invalidatedIds : Collections.EMPTY_LIST;
122     }
123     
124     public Collection JavaDoc getIndirectlyModifiedIds() {
125         return (indirectlyModifiedIds != null) ? indirectlyModifiedIds : Collections.EMPTY_LIST;
126     }
127
128     public String JavaDoc toString() {
129         StringBuffer JavaDoc buffer = new StringBuffer JavaDoc();
130         buffer.append("[SnapshotEvent] source: ").append(getSource());
131
132         Map JavaDoc modified = getModifiedDiffs();
133         if (!modified.isEmpty()) {
134             buffer.append(", modified ").append(modified.size()).append(" id(s)");
135         }
136
137         Collection JavaDoc deleted = getDeletedIds();
138         if (!deleted.isEmpty()) {
139             buffer.append(", deleted ").append(deleted.size()).append(" id(s)");
140         }
141         
142         Collection JavaDoc invalidated = getInvalidatedIds();
143         if (!invalidated.isEmpty()) {
144             buffer.append(", invalidated ").append(invalidated.size()).append(" id(s)");
145         }
146         
147         Collection JavaDoc related = getIndirectlyModifiedIds();
148         if (!related.isEmpty()) {
149             buffer.append(", indirectly modified ").append(related.size()).append(" id(s)");
150         }
151
152         return buffer.toString();
153     }
154 }
155
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