001/**
002 * Copyright 2005-2015 The Kuali Foundation
003 *
004 * Licensed under the Educational Community License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.opensource.org/licenses/ecl2.php
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.kuali.rice.krad.datadictionary.validation.constraint.resolver;
017
018import org.kuali.rice.krad.datadictionary.validation.capability.CaseConstrainable;
019import org.kuali.rice.krad.datadictionary.validation.constraint.Constraint;
020
021import java.util.Collections;
022import java.util.List;
023
024/**
025 * CaseConstraintResolver returns the case constraint as a list for a definition implementing the capability {@link
026 * CaseConstrainable}
027 *
028 * @author Kuali Rice Team (rice.collab@kuali.org)
029 * @param <T> constrainable type
030 */
031public class CaseConstraintResolver<T extends CaseConstrainable> implements ConstraintResolver<T> {
032
033    @Override
034    public <C extends Constraint> List<C> resolve(T definition) {
035        @SuppressWarnings("unchecked") C caseConstraint = (C) definition.getCaseConstraint();
036        return (caseConstraint == null) ? null : Collections.<C>singletonList(caseConstraint);
037    }
038
039}