1 /*
2 * Metis: Java Data Framework
3 * Copyright 2012-2026. Tony Washer
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
6 * use this file except in compliance with the License. You may obtain a copy
7 * of the License at
8 *
9 * 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, WITHOUT
13 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
14 * License for the specific language governing permissions and limitations under
15 * the License.
16 */
17 package io.github.tonywasher.joceanus.metis.data;
18
19 /**
20 * Enumeration of edit states of DataItem and DataList objects in a view.
21 */
22 public enum MetisDataEditState {
23 /**
24 * No changes made.
25 */
26 CLEAN,
27
28 /**
29 * Non-validated changes made.
30 */
31 DIRTY,
32
33 /**
34 * Only valid changes made.
35 */
36 VALID,
37
38 /**
39 * Object is in error.
40 */
41 ERROR;
42
43 /**
44 * Combine With another edit state.
45 *
46 * @param pState edit state to combine with
47 * @return the combined state
48 */
49 public MetisDataEditState combineState(final MetisDataEditState pState) {
50 switch (this) {
51 case ERROR:
52 return this;
53 case DIRTY:
54 return pState == ERROR
55 ? pState
56 : this;
57 case VALID:
58 return pState != CLEAN
59 ? pState
60 : this;
61 case CLEAN:
62 default:
63 return pState;
64 }
65 }
66 }