001/**
002 * Copyright 2005-2016 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.krms.framework.engine.expression;
017
018import org.kuali.rice.krms.api.engine.ExecutionEnvironment;
019import org.kuali.rice.krms.api.engine.Term;
020import org.kuali.rice.krms.api.engine.TermResolutionException;
021
022/**
023 * An implementation of {@link Expression} which resolves the given {@link Term}.
024 * 
025 * @author Kuali Rice Team (rice.collab@kuali.org)
026 *
027 */
028public final class TermExpression implements Expression<Object> {
029
030        private final Term term;
031
032    /**
033     * Create a TermExpression with the given value
034     * @param term {@link Term} to invoke upon.
035     */
036        public TermExpression(Term term) {
037                this.term = term;
038        }
039
040        /**
041         * @see org.kuali.rice.krms.framework.engine.expression.Expression#invoke(org.kuali.rice.krms.api.engine.ExecutionEnvironment)
042         * @throws TermResolutionException if there is a problem resolving the {@link Term}
043         */
044        @Override
045        public Object invoke(ExecutionEnvironment environment) {
046            return environment.resolveTerm(term, this);
047        }
048
049}