@NonNullApi @NonNullFields

# 程序包 org.springframework.ejb.access

This package contains classes that allow easy access to EJBs.

请参阅: 说明

- 类概要
  类 | 说明
  --- | ---
  AbstractRemoteSlsbInvokerInterceptor | Base class for interceptors proxying remote Stateless Session Beans.
  AbstractSlsbInvokerInterceptor | Base class for AOP interceptors invoking local or remote Stateless Session Beans.
  LocalSlsbInvokerInterceptor | Invoker for a local Stateless Session Bean.
  LocalStatelessSessionProxyFactoryBean | Convenient `FactoryBean` for local Stateless Session Bean (SLSB) proxies.
  SimpleRemoteSlsbInvokerInterceptor | Basic invoker for a remote Stateless Session Bean.
  SimpleRemoteStatelessSessionProxyFactoryBean | Convenient `FactoryBean` for remote SLSB proxies.

- 异常错误概要
  异常错误 | 说明
  --- | ---
  EjbAccessException | Exception that gets thrown when an EJB stub cannot be accessed properly.

## 程序包org.springframework.ejb.access的说明

This package contains classes that allow easy access to EJBs. The basis are AOP interceptors run before and after the EJB invocation. In particular, the classes in this package allow transparent access to stateless session beans (SLSBs) with local interfaces, avoiding the need for application code using them to use EJB-specific APIs and JNDI lookups, and work with business interfaces that could be implemented without using EJB. This provides a valuable decoupling of client (such as web components) and business objects (which may or may not be EJBs). This gives us the choice of introducing EJB into an application (or removing EJB from an application) without affecting code using business objects.

The motivation for the classes in this package are discussed in Chapter 11 of Expert One-On-One J2EE Design and Development by Rod Johnson (Wrox, 2002).

However, the implementation and naming of classes in this package has changed. It now uses FactoryBeans and AOP, rather than the custom bean definitions described in Expert One-on-One J2EE.