001/*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements.  See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License.  You may obtain a copy of the License at
008 *
009 *      http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package org.apache.wicket.behavior;
018
019import org.apache.wicket.Component;
020import org.apache.wicket.WicketRuntimeException;
021
022/**
023 * Thrown when a behavior with an invalid id is requested
024 * 
025 * @author ivaynberg (Igor Vaynberg)
026 */
027public class InvalidBehaviorIdException extends WicketRuntimeException
028{
029        private static final long serialVersionUID = 1L;
030
031        private final Component component;
032        private final int behaviorId;
033
034        /**
035         * Constructor
036         * 
037         * @param component
038         * @param behaviorId
039         */
040        public InvalidBehaviorIdException(Component component, int behaviorId)
041        {
042                super(
043                        String.format("Cannot find behavior with id '%d' on component '%s' in page '%s'. " +
044                                "Perhaps the behavior did not properly implement getStatelessHint() and returned 'true' " +
045                                "to indicate that it is stateless instead of returning 'false' to indicate that it is stateful.",
046                                        behaviorId,
047                                        component.getClassRelativePath(),
048                                        component.getPage()));
049                this.component = component;
050                this.behaviorId = behaviorId;
051        }
052
053        /**
054         * @return component which was thought to contain the behavior
055         */
056        public Component getComponent()
057        {
058                return component;
059        }
060
061        /**
062         * @return behavior id
063         */
064        public int getBehaviorId()
065        {
066                return behaviorId;
067        }
068}