01: // Copyright 2006, 2007 The Apache Software Foundation
02: //
03: // Licensed under the Apache License, Version 2.0 (the "License");
04: // you may not use this file except in compliance with the License.
05: // You may obtain a copy of the License at
06: //
07: // http://www.apache.org/licenses/LICENSE-2.0
08: //
09: // Unless required by applicable law or agreed to in writing, software
10: // distributed under the License is distributed on an "AS IS" BASIS,
11: // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12: // See the License for the specific language governing permissions and
13: // limitations under the License.
14:
15: package org.apache.tapestry.internal.services;
16:
17: import static org.apache.tapestry.ioc.internal.util.Defense.notBlank;
18: import static org.apache.tapestry.ioc.internal.util.Defense.notNull;
19:
20: import org.apache.tapestry.services.PersistentFieldChange;
21:
22: public class PersistentFieldChangeImpl implements PersistentFieldChange {
23: private final String _componentId;
24:
25: private final String _fieldName;
26:
27: private final Object _value;
28:
29: public PersistentFieldChangeImpl(final String componentId,
30: final String fieldName, final Object value) {
31: notNull(componentId, "componentId");
32: notBlank(fieldName, "fieldName");
33:
34: _componentId = componentId;
35: _fieldName = fieldName;
36: _value = value;
37: }
38:
39: public String getComponentId() {
40: return _componentId;
41: }
42:
43: public String getFieldName() {
44: return _fieldName;
45: }
46:
47: public Object getValue() {
48: return _value;
49: }
50: }
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