[jboss-dev-forums] [Design the new POJO MicroContainer] - Re: expressing dependent states

[adrian@jboss.org]

You're breaking the MBean rules.
You shouldn't expect some dependency to be started in your create lifecycle.
I'm surprised this worked when you were an MBean? Maybe just luck :-)

The obvious solution would be to inject the ORBService as a parameter
into your create() method. It then must be started/installed to be passed
as such a parameter.


  | <bean ...>
  |    <create>
  |        <parameter><inject bean="ORBService"/></parametrer>
  |    </create>
  | 

But if you don't want to change your code then you can use the "demand"
instead of "depends' to achieve what you want:

Example from the schema:
http://viewvc.jboss.org/cgi-bin/viewvc.cgi/jbossas/projects/microcontainer/trunk/kernel/src/resources/main/schema/jboss-beans-common_2_0.xsd?view=log

  |             The demand is used to specify a dependency on a supply
  | 
  |             and when the demand should be supplied
  | 
  |             
  | 
  |             e.g.:
  | 
  |             ISupply must be installed before IDemand is constructed
  | 
  | 
  | 
  |             <bean name="IDemand">
  | 
  |                <demand state="Instantiated">theSupply</demand>
  | 
  |             </bean>
  | 
  |             <bean name="ISupply" ...>
  | 
  |                <supply>theSupply</supply>
  | 
  |             </bean>
  | 

In your case you would 

  | <demand state="Create">ORBService</demand>
  | 

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