How to inject a bean only when it exists

Question

I have the following structure of spring context files ( -> stands for \'includes\') :

A1.xml -> B.xml & C.xml
A2.xml -> B.xml
         


        

Answer 1

I quite agree with cleaning up your XML :-)

If you're using annotation based injection, you might try this trick

@Autowired( required=false )

I'm unsure whether this will work in your situation, but it's worth a try.