[CONF] OpenEJB 3.0.x documentation > Basics - Getting Things

[confluence]

Basics - Getting Things Page edited by Trenton D. Adams remove bit about security, as it's related to the chain of method calls, and the container, not the context. remove bit about security, as it's related to the chain of method calls, and the container, not the context. Getting Stuff from the Container Generally speaking the only way to get a container controlled resource is via dependency injection or lookup from within a container managed component. Dependency injection can be configure equally via xml or annotations InitialContext Lookups Server side beans should access other beans on the server via the default no args constructor (EJB 3 spec 15.3.1 Bean Provider's Responsibilities). Container side lookup names must be preceded with java:comp/env, as in java:comp/env/myBean. e.g. initialContext.lookup("java:comp/env/beanName") note that java:comp/env/ is empty by default, and you need to declare your references, whether via xml or annotations Declared via annotations @EJB(name="myBean", beanInterface = IMyBean.class) public class DependentBean .... Declared via xml INCOMPLETE Clients is a good reference for more complex lookups, including authentication. Injection Some important things to realize about dependency injections. @EJB IMyBean myBean is syntactic sugar for lookups (as follows), and is overridden by _xml_ initialContext = new InitialContext(); initialContext.lookup("java:comp/env/beanName") EJB Refs is a good reference for injection via xml or annotations Change Notification Preferences View Online | View Change | Add Comment