Is it possible to use Spring's @Autowired annotation within a Spring configuration written in Java?
For example:
@Configuration
public class SpringConfiguration{
@Autowired
DataSource datasource;
@Bean
public DataSource dataSource(){
return new dataSource();
}
// ...
}
Obviously a DataSource interface cannot be directly instantiated but I directly instantiated it here for simplification. Currently, when I try the above, the datasource object remains null and is not autowired by Spring.
I got @Autowired to work successfully with a Hibernate SessionFactory object by returning a FactoryBean<SessionFactory>.
So my question specifically: is there a way to do that with respect to a DataSource? Or more generally, what is the method to autowire a bean within a Spring Java Configuration?
I should note I am using Spring version 3.2.
If you need a reference to the DataSource bean within the same @Configuration file, just invoke the bean method.
@Bean
public OtherBean someOtherBean() {
return new OtherBean(dataSource());
}
or have it autowired into the @Bean method
@Bean
public OtherBean someOtherBean(DataSource dataSource) {
return new OtherBean(dataSource);
}
The lifecycle of a @Configuration class sometimes prevents autowiring like you are suggesting.
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