java - Specialize EJB in JBoss -


i asked while ago within jboss 4.2.3 (javaee 5) context , got answer try spring configuration, i'd rather not add framework when isn't necessary.

now javaee 6 , 7 out have feeling there's simpler solution problem. wasn't lucky searching yet if can me on right track, i'd appreciate help.

here's problem:

suppose have ejb interface iejb , library provides implentation ejba of interface. there several other libraries provide further ejbs , couple of contain @ejb iejb ref, i.e. need reference en ejb exposes interface iejb.

now, there need completely replace ejba alternate implementation ejbb, i.e. ejba should never using in entire application.

there few options can't use or require rather large changes:

  • "don't deploy library containing ejba": not possible, since there other ejbs needed
  • "extract ejba lib": require rather large changes in our libraries , applications use them
  • "implement ejba non-ejb, subclass when needed , make subclass ejb": same reasons above apply, require rather large changes
  • "delete ejba": there other applications need use it, it's 1 application should use replacement instead.

so there few ways think of:

  • tell server not deploy ejba implementation of iejb ejbb , dependency injection fine
  • tell dependency injection use ejbb when instance of iejb required (something cdi's @specializes ejbs - possible in javaee 7?)

any ideas on this? possible (i have feeling yes) , if so, how?


note on environment: we're running on jboss 7.2.0, if possible using wildfly, might option (although we'd prefer not forced update already).

a couple of ideas:

  • delete ejba if mustn't used anyway
  • remove ejb annotations
  • use @inject inject local ejbs (recommended anyway). think cdi lets specify default implementation, afaik.

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