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1
56 package org.objectstyle.cayenne.access.event;
57
58 import java.util.Collection  ;
59 import java.util.Collections ;
60 import java.util.Map ;
61
62 import org.objectstyle.cayenne.event.CayenneEvent;
63
64
70 public class SnapshotEvent extends CayenneEvent {
71
72 protected long timestamp;
73 protected Collection deletedIds;
74 protected Collection invalidatedIds;
75 protected Map modifiedDiffs;
76 protected Collection indirectlyModifiedIds;
77
78
81 public SnapshotEvent(
82 Object source,
83 Object postedBy,
84 Map modifiedDiffs,
85 Collection deletedIds,
86 Collection indirectlyModifiedIds) {
87
88 this(source, postedBy, modifiedDiffs, deletedIds, Collections.EMPTY_LIST, indirectlyModifiedIds);
89 }
90
91 public SnapshotEvent(
92 Object source,
93 Object postedBy,
94 Map modifiedDiffs,
95 Collection deletedIds,
96 Collection invalidatedIds,
97 Collection 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 getModifiedDiffs() {
113 return (modifiedDiffs != null) ? modifiedDiffs : Collections.EMPTY_MAP;
114 }
115
116 public Collection getDeletedIds() {
117 return (deletedIds != null) ? deletedIds : Collections.EMPTY_LIST;
118 }
119
120 public Collection getInvalidatedIds() {
121 return (invalidatedIds != null) ? invalidatedIds : Collections.EMPTY_LIST;
122 }
123
124 public Collection getIndirectlyModifiedIds() {
125 return (indirectlyModifiedIds != null) ? indirectlyModifiedIds : Collections.EMPTY_LIST;
126 }
127
128 public String toString() {
129 StringBuffer buffer = new StringBuffer ();
130 buffer.append("[SnapshotEvent] source: ").append(getSource());
131
132 Map modified = getModifiedDiffs();
133 if (!modified.isEmpty()) {
134 buffer.append(", modified ").append(modified.size()).append(" id(s)");
135 }
136
137 Collection deleted = getDeletedIds();
138 if (!deleted.isEmpty()) {
139 buffer.append(", deleted ").append(deleted.size()).append(" id(s)");
140 }
141
142 Collection invalidated = getInvalidatedIds();
143 if (!invalidated.isEmpty()) {
144 buffer.append(", invalidated ").append(invalidated.size()).append(" id(s)");
145 }
146
147 Collection 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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