01: /*
02: * Copyright 2007 Outerthought bvba and Schaubroeck nv
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS,
12: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13: * See the License for the specific language governing permissions and
14: * limitations under the License.
15: */
16: package org.outerj.daisy.workflow;
17:
18: /**
19: * Used by {@link QueryOrderByItem} and {@link QuerySelectItem} to indicate
20: * the scope of a variable name.
21: */
22: public enum QueryValueSource {
23: PROPERTY("property"), TASK_VARIABLE("task_variable"), PROCESS_VARIABLE(
24: "process_variable");
25:
26: private final String name;
27:
28: private QueryValueSource(String name) {
29: this .name = name;
30: }
31:
32: public String toString() {
33: return name;
34: }
35:
36: public static QueryValueSource fromString(String name) {
37: if (PROPERTY.name.equals(name)) {
38: return PROPERTY;
39: } else if (TASK_VARIABLE.name.equals(name)) {
40: return TASK_VARIABLE;
41: } else if (PROCESS_VARIABLE.name.equals(name)) {
42: return PROCESS_VARIABLE;
43: } else {
44: throw new RuntimeException("Unrecognized value source: "
45: + name);
46: }
47: }
48: }
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