Tag: bean

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Java

How to set a default method to running code on the creation or destruction of a bean

In the post Executing code on the creation or destruction of a bean in Spring I explain three ways to execute code on the creation or destruction of a Bean in Spring.
With two of these ways you can set the execution of a specific custom method:

  • with the annotations @PostConstruct and @PreDestroy
  • configuring the properties init-method and destroy-method

There is a very convenient way in the case that more beans have methods with the same name to be executed on their creation and destruction, i.e. you can specify a default method for all the beans.

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Categories
Java

PropertyEditors in Spring 3

PropertyEditor is an interface that provides a support for the conversion of the value of a property (usually of type String) in an object that can be Date, URL, etc.

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Categories
Java

Executing code on the creation or destruction of a bean in Spring

There are 3 ways to execute code to create a bean in Spring:

  • with the annotation @PostConstruct
  • implementing the interface InitializingBean
  • configuring the property init-method

The reason why you run code when you create a bean is often to check the dependencies, and assign a default value, or automated actions such as starting a scheduled task.
The constructor of the bean may not be suitable for this purpose because the bean is not fully initialized until the constructor has not completed.

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