001/* 002 * Copyright 2002-2016 the original author or authors. 003 * 004 * Licensed under the Apache 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 * https://www.apache.org/licenses/LICENSE-2.0 009 * 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 017package org.springframework.beans.factory; 018 019import org.springframework.beans.BeansException; 020import org.springframework.util.ClassUtils; 021 022/** 023 * Thrown when a bean doesn't match the expected type. 024 * 025 * @author Rod Johnson 026 * @author Juergen Hoeller 027 */ 028@SuppressWarnings("serial") 029public class BeanNotOfRequiredTypeException extends BeansException { 030 031 /** The name of the instance that was of the wrong type */ 032 private String beanName; 033 034 /** The required type */ 035 private Class<?> requiredType; 036 037 /** The offending type */ 038 private Class<?> actualType; 039 040 041 /** 042 * Create a new BeanNotOfRequiredTypeException. 043 * @param beanName the name of the bean requested 044 * @param requiredType the required type 045 * @param actualType the actual type returned, which did not match 046 * the expected type 047 */ 048 public BeanNotOfRequiredTypeException(String beanName, Class<?> requiredType, Class<?> actualType) { 049 super("Bean named '" + beanName + "' is expected to be of type '" + ClassUtils.getQualifiedName(requiredType) + 050 "' but was actually of type '" + ClassUtils.getQualifiedName(actualType) + "'"); 051 this.beanName = beanName; 052 this.requiredType = requiredType; 053 this.actualType = actualType; 054 } 055 056 057 /** 058 * Return the name of the instance that was of the wrong type. 059 */ 060 public String getBeanName() { 061 return this.beanName; 062 } 063 064 /** 065 * Return the expected type for the bean. 066 */ 067 public Class<?> getRequiredType() { 068 return this.requiredType; 069 } 070 071 /** 072 * Return the actual type of the instance found. 073 */ 074 public Class<?> getActualType() { 075 return this.actualType; 076 } 077 078}