Anonymous Spring bean
java, javabeans, spring
Solution
There are two uses that i can think of straight of.
As an inner bean
<bean id="outer" class="foo.bar.A">
<property name="myProperty">
<bean class="foo.bar.B"/>
</property>
</bean>
As a configurer of static properties
public class ServiceUtils {
private static Service service;
private ServiceUtils() {}
...
public static void setService(Service service) {
this.service = service;
}
}
public class ServiceConfigurer {
private static Service service;
private ServiceUtils() {}
...
public void setService(Service service) {
ServiceUtils.setService(service);
}
}
Now that class can be configured like this.
<bean class="foo.bar.ServiceConfigurer">
<property name="service" ref="myService"/>
</bean>
In addition if there is a bean that is not depended upon by any other bean eg RmiServiceExporter or MessageListenerContainer then there is no need other than code clarity to give this bean a name.
Problem
How is an anonymous Spring bean useful?