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 outside of transaction
20: * (no ODMG equivalent).
21: */
22: public class Hollow extends State {
23:
24: Hollow() {
25: }
26:
27: /**
28: * return a String representation
29: */
30: public String toString() {
31: return "Hollow";
32: }
33:
34: //-------------- State transitions --------------------
35:
36: /**
37: * Describes the state transition when object is gotten from the cache
38: * or is loaded from database (once per transaction).
39: */
40: public State getObject() throws IllegalObjectStateException {
41: return State.PERSISTENT_CLEAN;
42: }
43:
44: /**
45: * Describes the state transition when user modifies object
46: */
47: public State markDirty() throws IllegalObjectStateException {
48: return State.PERSISTENT_DIRTY;
49: }
50:
51: /**
52: * Describes the state transition on deletePersistent()
53: */
54: public State deletePersistent() throws IllegalObjectStateException {
55: return State.PERSISTENT_DELETED;
56: }
57:
58: public State rollback() throws IllegalObjectStateException {
59: return this;
60: }
61: }
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