01: package org.apache.ojb.otm.states;
02:
03: /* Copyright 2003-2005 The Apache Software Foundation
04: *
05: * Licensed under the Apache License, Version 2.0 (the "License");
06: * you may not use this file except in compliance with the License.
07: * You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17:
18: /**
19: * this state represents persistent objects which have been altered
20: * during tx (ODMG StateOldDirty).
21: */
22: public class PersistentDirty extends State {
23:
24: PersistentDirty() {
25: }
26:
27: /**
28: * return a String representation
29: */
30: public String toString() {
31: return "Persistent-dirty";
32: }
33:
34: //-------------- State transitions --------------------
35:
36: /**
37: * Describes the state transition when user modifies object
38: */
39: public State markDirty() throws IllegalObjectStateException {
40: return this ;
41: }
42:
43: /**
44: * Describes the state transition on makePersistent()
45: */
46: public State makePersistent() throws IllegalObjectStateException {
47: return this ;
48: }
49:
50: /**
51: * Describes the state transition on deletePersistent()
52: */
53: public State deletePersistent() throws IllegalObjectStateException {
54: return State.PERSISTENT_DELETED;
55: }
56:
57: /**
58: * Describes the state transition on commit()
59: */
60: public State commit() throws IllegalObjectStateException {
61: return State.HOLLOW;
62: }
63:
64: /**
65: * Describes the state transition on rollback()
66: */
67: public State rollback() throws IllegalObjectStateException {
68: return State.HOLLOW;
69: }
70:
71: public State refresh() throws IllegalObjectStateException {
72: return State.PERSISTENT_CLEAN;
73: }
74:
75: //-------------- State semantics --------------------
76:
77: /**
78: * returns true is this state requires UPDATE
79: */
80: public boolean needsUpdate() {
81: return true;
82: }
83:
84: }
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