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.core.util.objects.checker; 018 019import java.util.List; 020 021import org.apache.wicket.model.LoadableDetachableModel; 022 023/** 024 * An implementation of {@link IObjectChecker} that returns a failure 025 * result when the checked object is a {@link LoadableDetachableModel} 026 * and it is model object is still attached. 027 */ 028public class NotDetachedModelChecker extends AbstractObjectChecker 029{ 030 /** 031 * Constructor. 032 * 033 * Checks all passed objects. 034 */ 035 public NotDetachedModelChecker() 036 { 037 super(); 038 } 039 040 /** 041 * Constructor. 042 * 043 * Checks objects which types are not excluded. 044 * 045 * @param exclusions 046 * a list of types which should not be checked 047 */ 048 public NotDetachedModelChecker(List<Class<?>> exclusions) 049 { 050 super(exclusions); 051 } 052 053 @Override 054 public Result doCheck(Object obj) 055 { 056 Result result = Result.SUCCESS; 057 058 if (obj instanceof LoadableDetachableModel<?>) 059 { 060 LoadableDetachableModel<?> model = (LoadableDetachableModel<?>) obj; 061 if (model.isAttached()) 062 { 063 result = new Result(Result.Status.FAILURE, "Not detached model found!"); 064 } 065 } 066 067 return result; 068 } 069}