Re: [jboss-user] [JBoss Microcontainer] - Cyclic dependencies

Ales Justin [http://community.jboss.org/people/alesj] replied to the discussion "Cyclic dependencies" To view the discussion, visit: http://community.jboss.org/message/558337#558337 -------------------------------------------------------------- Injection is also just a dependency. We can do whatever you can do programatically. It's the different states that make this happen. e.g. if A depends on B and B depends on A, both at ctor, then of course it's impossible to solve this class A {    A(B b) {} } class B {    B(A a) {} } but if you set the A into B via setter (which gets populated at different state), then it would work. class B {    B() {}   void setA(A a) {} } The same goes for <demand> which can take the state at which you depend on target, while you can also declare target's state. * http://anonsvn.jboss.org/repos/jbossas/projects/kernel/trunk/kernel/src/m... http://anonsvn.jboss.org/repos/jbossas/projects/kernel/trunk/kernel/src/m... <depends> is slightly different, as it has this states already "hardcoded" -- same functionality as you're used from old JMX kernel. MC state machine works on top of linear states:    public AbstractController()    {       addState(ControllerState.NOT_INSTALLED, null);       addState(ControllerState.PRE_INSTALL, null);       addState(ControllerState.DESCRIBED, null);       addState(ControllerState.INSTANTIATED, null);       addState(ControllerState.CONFIGURED, null);       addState(ControllerState.CREATE, null);       addState(ControllerState.START, null);       addState(ControllerState.INSTALLED, null); While you can dynamically add new states -- see DeployersImpl. * http://anonsvn.jboss.org/repos/jbossas/projects/presentations/trunk/micro... http://anonsvn.jboss.org/repos/jbossas/projects/presentations/trunk/micro... * http://java.dzone.com/articles/a-look-inside-jboss-microconta-0 http://java.dzone.com/articles/a-look-inside-jboss-microconta-0 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/558337#558337] Start a new discussion in JBoss Microcontainer at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]