001    /**
002     * Copyright 2005-2012 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     */
016    package org.kuali.rice.krms.framework.engine;
017    
018    import java.util.Arrays;
019    import java.util.List;
020    
021    import org.kuali.rice.krms.api.engine.ExecutionEnvironment;
022    
023    /**
024     * An implementation of {@link AgendaTree} that executes a {@link ExecutionEnvironment} over its list of {@link AgendaTreeEntry}s.
025     * 
026     * @author Kuali Rice Team (rice.collab@kuali.org)
027     */
028    public final class BasicAgendaTree implements AgendaTree {
029            
030            private final List<AgendaTreeEntry> entries;
031    
032        /**
033         * Create a BasicAgendaTree with the given {@link AgendaTreeEntry}s
034         * @param entries - {@link AgendaTreeEntry}s to create a BasicAgendaTree with
035         */
036            public BasicAgendaTree(AgendaTreeEntry... entries) {
037                    this.entries = Arrays.asList(entries);
038            }
039    
040        /**
041         * Create a BasicAgendaTree with the given {@link AgendaTreeEntry}s
042         * @param entries - {@link AgendaTreeEntry}s to create a BasicAgendaTree with
043         * @throws IllegalArgumentException if the entries list is null
044         */
045            public BasicAgendaTree(List<AgendaTreeEntry> entries) {
046                    if (entries == null) {
047                            throw new IllegalArgumentException("entries list was null");
048                    }
049                    this.entries = entries;         
050            }
051            
052        @Override
053            public void execute(ExecutionEnvironment environment) {
054                    for (AgendaTreeEntry entry : entries) {
055                            entry.execute(environment);
056                    }
057            }
058            
059    }