SessionContext (Java EE 5 SDK)

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Java EE 5 SDK

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摘要: 嵌套 | 字段 | 构造器 | 方法

详细信息: 字段 | 构造器 | 方法

javax.ejb Interface SessionContext

所有父接口:: EJBContext

public interface SessionContext
extends EJBContext

The SessionContext interface provides access to the runtime session context that the container provides for a session enterprise Bean instance. The container passes the SessionContext interface to an instance after the instance has been created. The session context remains associated with the instance for the lifetime of the instance.

方法摘要

<T> T

getBusinessObject(Class<T> businessInterface)
          Obtain an object that can be used to invoke the current bean through the given business interface. EJBLocalObject getEJBLocalObject()
          Obtain a reference to the EJB local object that is associated with the instance. EJBObject getEJBObject()
          Obtain a reference to the EJB object that is currently associated with the instance. Class getInvokedBusinessInterface()
          Obtain the business interface through which the current business method invocation was made. MessageContext getMessageContext()
          Obtain a reference to the JAX-RPC MessageContext.

Methods inherited from interface javax.ejb.EJBContext
`getCallerIdentity, getCallerPrincipal, getEJBHome, getEJBLocalHome, getEnvironment, getRollbackOnly, getTimerService, getUserTransaction, isCallerInRole, isCallerInRole, lookup, setRollbackOnly`

方法详细信息

getEJBLocalObject

EJBLocalObject getEJBLocalObject()
                                 throws IllegalStateException

Obtain a reference to the EJB local object that is associated with the instance.

An instance of a session enterprise Bean can call this method at anytime between the ejbCreate() and ejbRemove() methods, including from within the ejbCreate() and ejbRemove() methods.

An instance can use this method, for example, when it wants to pass a reference to itself in a method argument or result.

返回:: The EJB local object currently associated with the instance.
抛出异常:: IllegalStateException - Thrown if the instance invokes this method while the instance is in a state that does not allow the instance to invoke this method, or if the instance does not have a local interface.

getEJBObject

EJBObject getEJBObject()
                       throws IllegalStateException

Obtain a reference to the EJB object that is currently associated with the instance.

An instance of a session enterprise Bean can call this method at anytime between the ejbCreate() and ejbRemove() methods, including from within the ejbCreate() and ejbRemove() methods.

An instance can use this method, for example, when it wants to pass a reference to itself in a method argument or result.

返回:: The EJB object currently associated with the instance.
抛出异常:: IllegalStateException - Thrown if the instance invokes this method while the instance is in a state that does not allow the instance to invoke this method, or if the instance does not have a remote interface.

getMessageContext

MessageContext getMessageContext()
                                 throws IllegalStateException

Obtain a reference to the JAX-RPC MessageContext.

An instance of a stateless session bean can call this method from any business method invoked through its web service endpoint interface.

返回:: The MessageContext for this web service invocation.
抛出异常:: IllegalStateException - Thrown if this method is invoked while the instance is in a state that does not allow access to this method.

getBusinessObject

<T> T getBusinessObject(Class<T> businessInterface)
                    throws IllegalStateException

Obtain an object that can be used to invoke the current bean through the given business interface.

参数:: businessInterface - One of the local business interfaces or remote business interfaces for this session bean.
返回:: The business object corresponding to the given business interface.
抛出异常:: IllegalStateException - Thrown if this method is invoked with an invalid business interface for the current bean.

getInvokedBusinessInterface

Class getInvokedBusinessInterface()
                                  throws IllegalStateException

Obtain the business interface through which the current business method invocation was made.

抛出异常:: IllegalStateException - Thrown if this method is called and the bean has not been invoked through a business interface.

概述