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1
16
17 package org.springframework.beans.factory;
18
19 import org.springframework.beans.BeansException;
20 import org.springframework.beans.factory.config.BeanPostProcessor;
21
22
29 public class LifecycleBean implements BeanNameAware, BeanFactoryAware, InitializingBean, DisposableBean {
30
31 protected String  beanName;
32
33 protected boolean initMethodDeclared = false;
34
35 protected BeanFactory owningFactory;
36
37 protected boolean postProcessedBeforeInit;
38
39 protected boolean inited;
40 protected boolean initedViaDeclaredInitMethod;
41
42 protected boolean postProcessedAfterInit;
43
44 protected boolean destroyed;
45
46 public boolean isInitMethodDeclared() {
47 return initMethodDeclared;
48 }
49 public void setInitMethodDeclared(boolean initMethodDeclared) {
50 this.initMethodDeclared = initMethodDeclared;
51 }
52
53 public void setBeanName(String name) {
54 this.beanName = name;
55 }
56 public String getBeanName() {
57 return beanName;
58 }
59
60 public void setBeanFactory(BeanFactory beanFactory) {
61 this.owningFactory = beanFactory;
62 }
63
64 public void postProcessBeforeInit() {
65 if (this.inited || this.initedViaDeclaredInitMethod) {
66 throw new RuntimeException ("Factory called postProcessBeforeInit after afterPropertiesSet");
67 }
68 if (this.postProcessedBeforeInit) {
69 throw new RuntimeException ("Factory called postProcessBeforeInit twice");
70 }
71 this.postProcessedBeforeInit = true;
72 }
73
74 public void afterPropertiesSet() {
75 if (this.owningFactory == null) {
76 throw new RuntimeException ("Factory didn't call setBeanFactory before afterPropertiesSet on lifecycle bean");
77 }
78 if (!this.postProcessedBeforeInit) {
79 throw new RuntimeException ("Factory didn't call postProcessBeforeInit before afterPropertiesSet on lifecycle bean");
80 }
81 if (this.initedViaDeclaredInitMethod) {
82 throw new RuntimeException ("Factory initialized via declared init method before initializing via afterPropertiesSet");
83 }
84 if (this.inited) {
85 throw new RuntimeException ("Factory called afterPropertiesSet twice");
86 }
87 this.inited = true;
88 }
89
90 public void declaredInitMethod() {
91
92 if (!this.inited) {
93 throw new RuntimeException ("Factory didn't call afterPropertiesSet before declared init method");
94 }
95
96 if (this.initedViaDeclaredInitMethod) {
97 throw new RuntimeException ("Factory called declared init method twice");
98 }
99 this.initedViaDeclaredInitMethod = true;
100 }
101
102 public void postProcessAfterInit() {
103 if (!this.inited) {
104 throw new RuntimeException ("Factory called postProcessAfterInit before afterPropertiesSet");
105 }
106 if (this.initMethodDeclared && !this.initedViaDeclaredInitMethod) {
107 throw new RuntimeException ("Factory called postProcessAfterInit before calling declared init method");
108 }
109 if (this.postProcessedAfterInit) {
110 throw new RuntimeException ("Factory called postProcessAfterInit twice");
111 }
112 this.postProcessedAfterInit = true;
113 }
114
115
119 public void businessMethod() {
120 if (!this.inited || (this.initMethodDeclared && !this.initedViaDeclaredInitMethod)
121 || !this.postProcessedAfterInit) {
122 throw new RuntimeException ("Factory didn't initialize lifecycle object correctly");
123 }
124 }
125
126 public void destroy() {
127 if (this.destroyed) {
128 throw new IllegalStateException ("Already destroyed");
129 }
130 this.destroyed = true;
131 }
132
133 public boolean isDestroyed() {
134 return destroyed;
135 }
136
137
138 public static class PostProcessor implements BeanPostProcessor {
139
140 public Object postProcessBeforeInitialization(Object bean, String name) throws BeansException {
141 if (bean instanceof LifecycleBean) {
142 ((LifecycleBean) bean).postProcessBeforeInit();
143 }
144 return bean;
145 }
146
147 public Object postProcessAfterInitialization(Object bean, String name) throws BeansException {
148 if (bean instanceof LifecycleBean) {
149 ((LifecycleBean) bean).postProcessAfterInit();
150 }
151 return bean;
152 }
153 }
154 }
155 |
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