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Spring interview questions

!!! Spring interview questions !!!

Q.Lifecycle interfaces in spring ?



1) InitializingBean
2) DisposableBean

1) InitializingBean
<bean id="exampleInitBean" class="examples.ExampleBean" init-method="init"/>
public class ExampleBean {
public void init() { // do some initialization work }
}
OR
<bean id="exampleInitBean" class="examples.AnotherExampleBean"/>
public class AnotherExampleBean implements InitializingBean {
public void afterPropertiesSet() { // do some initialization work }
}

2) DisposableBean
<bean id="exampleInitBean" class="examples.ExampleBean" destroy-method="cleanup"/>
public class ExampleBean {
public void cleanup() {
// do some destruction work (like releasing pooled connections)
} }
OR
<bean id="exampleInitBean" class="examples.AnotherExampleBean"/>
public class AnotherExampleBean implements DisposableBean {
public void destroy() { // do some destruction work (like releasing pooled connections) }
}

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