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.krms.framework.engine.expression;
017
018import org.kuali.rice.krms.api.engine.ExecutionEnvironment;
019
020/**
021 * Interface for implementing Expressions, invoked on a {@link ExecutionEnvironment}
022 * @author Kuali Rice Team (rice.collab@kuali.org)
023 *
024 */
025public interface Expression<T> {
026
027    /**
028     * Invoke on the given {@link ExecutionEnvironment}.
029     * @param environment {@link ExecutionEnvironment} to invoke on.
030     * @return T
031     */
032        T invoke(ExecutionEnvironment environment);
033        
034}