1 /**
2 * Copyright 2005-2014 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.krms.framework.engine.expression;
17
18 import org.kuali.rice.krms.api.engine.ExecutionEnvironment;
19 import org.kuali.rice.krms.api.engine.Term;
20 import org.kuali.rice.krms.api.engine.TermResolutionException;
21
22 /**
23 * An implementation of {@link Expression} which resolves the given {@link Term}.
24 *
25 * @author Kuali Rice Team (rice.collab@kuali.org)
26 *
27 */
28 public final class TermExpression implements Expression<Object> {
29
30 private final Term term;
31
32 /**
33 * Create a TermExpression with the given value
34 * @param term {@link Term} to invoke upon.
35 */
36 public TermExpression(Term term) {
37 this.term = term;
38 }
39
40 /**
41 * @see org.kuali.rice.krms.framework.engine.expression.Expression#invoke(org.kuali.rice.krms.api.engine.ExecutionEnvironment)
42 * @throws TermResolutionException if there is a problem resolving the {@link Term}
43 */
44 @Override
45 public Object invoke(ExecutionEnvironment environment) {
46 return environment.resolveTerm(term, this);
47 }
48
49 }