1 /**
2 * Copyright 2005-2016 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.krad.datadictionary.validation.constraint.resolver;
17
18 import org.kuali.rice.krad.datadictionary.validation.capability.Constrainable;
19 import org.kuali.rice.krad.datadictionary.validation.capability.SimpleConstrainable;
20 import org.kuali.rice.krad.datadictionary.validation.constraint.Constraint;
21
22 import java.util.ArrayList;
23 import java.util.Collections;
24 import java.util.List;
25
26 public class SimpleConstraintResolver<T extends Constrainable> implements ConstraintResolver<T> {
27
28 /**
29 * Return SimpleConstraint if SimpleConstrainable, otherwise return an empty list.
30 *
31 * @param definition Definition to extract a SimpleConstraint from
32 * @param <C> SimpleConstraint
33 * @return SimpleConstraint if SimpleConstrainable, otherwise return an empty list.
34 */
35 public <C extends Constraint> List<C> resolve(T definition) {
36 if (definition instanceof SimpleConstrainable) {
37 C simpleConstraint = (C) (((SimpleConstrainable) definition).getSimpleConstraint());
38 return Collections.singletonList(simpleConstraint);
39 } else {
40 return new ArrayList<C>();
41 }
42 }
43 }