1 /**
2 * Copyright 2005-2011 The Kuali Foundation
3 *
4 * Licensed under the Educational Community License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.opensource.org/licenses/ecl2.php
9 *
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.kuali.rice.kew.engine.node.var;
17
18 import java.util.Arrays;
19 import java.util.Collection;
20 import java.util.Collections;
21
22 import org.kuali.rice.kew.engine.RouteContext;
23 import org.kuali.rice.kew.engine.node.var.schemes.LiteralScheme;
24 import org.kuali.rice.kew.engine.node.var.schemes.ResourceScheme;
25 import org.kuali.rice.kew.engine.node.var.schemes.URLScheme;
26 import org.kuali.rice.kew.engine.node.var.schemes.VariableScheme;
27 import org.kuali.rice.kew.engine.node.var.schemes.XPathScheme;
28
29
30 /**
31 * Interface representing an implementation that can resolve Property objects to
32 * values.
33 *
34 * @author Kuali Rice Team (rice.collab@kuali.org)
35 */
36 public interface PropertyScheme {
37 public static final PropertyScheme VARIABLE_SCHEME = new VariableScheme();
38 public static final PropertyScheme LITERAL_SCHEME = new LiteralScheme();
39 public static final PropertyScheme RESOURCE_SCHEME = new ResourceScheme();
40 public static final PropertyScheme URL_SCHEME = new URLScheme();
41 public static final PropertyScheme XPATH_SCHEME = new XPathScheme();
42
43 /**
44 * Collection/enumeration of PropertyScheme types
45 */
46 /* interfaces can't have static initializers */
47 public static final Collection SCHEMES = Collections.unmodifiableCollection(
48 Arrays.
49 asList(new PropertyScheme[] {
50 VARIABLE_SCHEME,
51 LITERAL_SCHEME,
52 RESOURCE_SCHEME,
53 URL_SCHEME,
54 XPATH_SCHEME}));
55
56 /**
57 * Scheme name
58 * @return scheme name
59 */
60 public String getName();
61 /**
62 * Short scheme name
63 * @return short scheme name
64 */
65 public String getShortName();
66 /**
67 * Loads/resolves a Property
68 * @param property the property to resolve
69 * @param context the current RouteContext
70 * @return the loaded/resolved value
71 */
72 public Object load(Property property, RouteContext context);
73 }