• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Bear Bibeault
  • Ron McLeod
  • Jeanne Boyarsky
  • Paul Clapham
Sheriffs:
  • Tim Cooke
  • Liutauras Vilda
  • Junilu Lacar
Saloon Keepers:
  • Tim Moores
  • Stephan van Hulst
  • Tim Holloway
  • fred rosenberger
  • salvin francis
Bartenders:
  • Piet Souris
  • Frits Walraven
  • Carey Brown

Home methods

 
Ranch Hand
Posts: 66
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
We arent allowed to get a reference to EJBObject or get primary key in Home methods because the bean has no EJBObject (they are inside the pool).

What would happen if we called create() / findByPrimaryKey(..) on the home interface, then try to get a reference to those? Might be a meaningless thing to do, but would it return the references?
 
Ranch Hand
Posts: 134
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator

We arent allowed to get a reference to EJBObject or get primary key in Home methods because the bean has no EJBObject (they are inside the pool).

What would happen if we called create() / findByPrimaryKey(..) on the home interface, then try to get a reference to those? Might be a meaningless thing to do, but would it return the references?


Here Home Methods mean Home Business Methods. Home business methods can be used by any ejbs.

create and findByPrimayKey will return EJBObject references.

Hope it helps
 
Dan T
Ranch Hand
Posts: 66
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Maybe my question was not clear.

Things you can do in your Home Business methods:
- getEJBHome
- getEJBLocalHome
- isCallerInRole(..)
- getCallerPrincipal
- setRollBackOnly
- getRollBackOnly
- JNDI env
- access other beans
- Resource manager

Hence we are not allowed to call getEJBObject() and getPrimaryKey() on the EntityContext because there is not an EJBObject associated with the bean (it is in the pool). What if we called the create() or findByPrimaryKey() method before invoking the getEJbObject in the home business? Calling these methods will either create and find an EJbObject, so will it return the references in the home methods?
 
Ranch Hand
Posts: 161
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
It's going to throw illegalStateException since there is no EJBObject associtated with the entitycontext.
 
With a little knowledge, a cast iron skillet is non-stick and lasts a lifetime.
    Bookmark Topic Watch Topic
  • New Topic