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.krad.datadictionary.validation.constraint.provider;
17
18 import org.kuali.rice.krad.datadictionary.validation.capability.Constrainable;
19 import org.kuali.rice.krad.datadictionary.validation.constraint.Constraint;
20
21 import java.util.List;
22
23 /**
24 * An object that determines a list of constraints for a given Constrainable definition for an attribute
25 * in the data dictionary. The ConstraintProvider interface must be implemented by any class that contributes
26 * Constraints to the DictionaryValidationService. Multiple ConstraintProviders can be registered simultaneously,
27 * and each can contribute constraints for any number of constraint types.
28 *
29 * These constraints can be looked up in a variety of ways. They may be:
30 *
31 * (1) member variables of the Constrainable definition itself {@see CaseConstrainable.class}
32 * (2) the Constrainable definition itself may extend Constraint {@see LengthConstrainable.class}
33 * (3) provided from some external source, or generated on the fly
34 *
35 * The goal here is to provide a mechanism that enables implementing institutions to inject new Constraints and ConstraintProcessor
36 * classes into the DictionaryValidationService implementation via dependency injection.
37 *
38 * @author Kuali Rice Team (rice.collab@kuali.org)
39 * @since 1.1
40 */
41 public interface ConstraintProvider<T extends Constrainable> {
42
43 public List<Constraint> getConstraints(T definition, Class<? extends Constraint> constraintType);
44
45 public boolean isSupported(Constrainable definition);
46
47 }