Ejb3 import the Sequence File (2)

Understand basic
Session Bean and message-driven bean are written in the compile mode. Next, we will look at some services such as the lifecycle, intercept, and timer.

• Lifecycle

Let's take a look.
The lifecycle and call-back methods of the Session Bean and message-driven bean.

• Stateless
  Session Bean Lifecycle
• Stateful
  Session Bean Lifecycle
• Message-driven Bean
  Lifecycle
• Interceptor)

Intercept
Before and after a call, or for a life cycle call, it can be used as an external service that is irrelevant to the commercial operation.

• Bean
  In
• Bytes
  Intercept type
• Raw
  Life Cycle callback interceptor
• Invocationcontext
  
• Detailed rules

Some broken shards
Detailed rules.

• Session
  Bean workflow rules
• Message-driven
  Bean workflow rules
• Rule rules of the interceptor
• Use timer Server

Timer
A service is a service provided by a container. It is used by stateless Session Bean and message-driven bean.

• Introducing timer services
• Timerservice and timer call back
  
• Transaction(Transaction)

You can use both CMT and BMT .. XD

• Transaction Reporting
• Transaction demarcation)
• Use CMT (container-managed transaction)
• Use BMT(Bean-managed
  Transaction)
• Security

Authentication (authentication) is handed over to the container. authorization can be performed using a declarative or declarative Program (programmatic ).

• Introduce Java EE Security
• Declarative Security
• Program Security
  
• Exception Handling
• Introduce Java EE exceptions
• Java EE exception