| /* |
| * Copyright 2004-2005 the original author or authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package grails.pageflow; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.springframework.core.style.ToStringCreator; |
| import org.springframework.util.Assert; |
| |
| /** |
| * <p>Simple container class for a page flow. |
| * |
| * @author Steven Devijver |
| * @since Jul 9, 2005 |
| */ |
| public class Flow { |
| |
| private List states = null; |
| |
| public Flow() { |
| super(); |
| this.states = new ArrayList(); |
| } |
| |
| public void addState(State state) { |
| Assert.notNull(state); |
| for (Iterator iter = this.states.iterator(); iter.hasNext();) { |
| State tmpState = (State)iter.next(); |
| if (tmpState.getId().equals(state.getId())) { |
| throw new IllegalArgumentException("Flow already has a state with id [" + tmpState.getId() + "]!"); |
| } |
| } |
| this.states.add(state); |
| } |
| |
| public List getStates() { |
| return this.states; |
| } |
| |
| public String toString() { |
| return new ToStringCreator(this).append(this.states).toString(); |
| } |
| } |