001/* 002 * Copyright 2002-2018 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.lang.Nullable; 021import org.springframework.util.StringUtils; 022 023/** 024 * Exception thrown when a bean depends on other beans or simple properties 025 * that were not specified in the bean factory definition, although 026 * dependency checking was enabled. 027 * 028 * @author Rod Johnson 029 * @author Juergen Hoeller 030 * @since 03.09.2003 031 */ 032@SuppressWarnings("serial") 033public class UnsatisfiedDependencyException extends BeanCreationException { 034 035 @Nullable 036 private final InjectionPoint injectionPoint; 037 038 039 /** 040 * Create a new UnsatisfiedDependencyException. 041 * @param resourceDescription description of the resource that the bean definition came from 042 * @param beanName the name of the bean requested 043 * @param propertyName the name of the bean property that couldn't be satisfied 044 * @param msg the detail message 045 */ 046 public UnsatisfiedDependencyException( 047 @Nullable String resourceDescription, @Nullable String beanName, String propertyName, String msg) { 048 049 super(resourceDescription, beanName, 050 "Unsatisfied dependency expressed through bean property '" + propertyName + "'" + 051 (StringUtils.hasLength(msg) ? ": " + msg : "")); 052 this.injectionPoint = null; 053 } 054 055 /** 056 * Create a new UnsatisfiedDependencyException. 057 * @param resourceDescription description of the resource that the bean definition came from 058 * @param beanName the name of the bean requested 059 * @param propertyName the name of the bean property that couldn't be satisfied 060 * @param ex the bean creation exception that indicated the unsatisfied dependency 061 */ 062 public UnsatisfiedDependencyException( 063 @Nullable String resourceDescription, @Nullable String beanName, String propertyName, BeansException ex) { 064 065 this(resourceDescription, beanName, propertyName, ""); 066 initCause(ex); 067 } 068 069 /** 070 * Create a new UnsatisfiedDependencyException. 071 * @param resourceDescription description of the resource that the bean definition came from 072 * @param beanName the name of the bean requested 073 * @param injectionPoint the injection point (field or method/constructor parameter) 074 * @param msg the detail message 075 * @since 4.3 076 */ 077 public UnsatisfiedDependencyException( 078 @Nullable String resourceDescription, @Nullable String beanName, @Nullable InjectionPoint injectionPoint, String msg) { 079 080 super(resourceDescription, beanName, 081 "Unsatisfied dependency expressed through " + injectionPoint + 082 (StringUtils.hasLength(msg) ? ": " + msg : "")); 083 this.injectionPoint = injectionPoint; 084 } 085 086 /** 087 * Create a new UnsatisfiedDependencyException. 088 * @param resourceDescription description of the resource that the bean definition came from 089 * @param beanName the name of the bean requested 090 * @param injectionPoint the injection point (field or method/constructor parameter) 091 * @param ex the bean creation exception that indicated the unsatisfied dependency 092 * @since 4.3 093 */ 094 public UnsatisfiedDependencyException( 095 @Nullable String resourceDescription, @Nullable String beanName, @Nullable InjectionPoint injectionPoint, BeansException ex) { 096 097 this(resourceDescription, beanName, injectionPoint, ""); 098 initCause(ex); 099 } 100 101 102 /** 103 * Return the injection point (field or method/constructor parameter), if known. 104 * @since 4.3 105 */ 106 @Nullable 107 public InjectionPoint getInjectionPoint() { 108 return this.injectionPoint; 109 } 110 111}