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javax.ejb
EJBContext (JBoss J2EE API) - JBoss 4.0.1 sp1 j2ee API Documentation 英文版文档
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javax.ejb
Interface EJBContext
- All Known Subinterfaces:
- EntityContext, MessageDrivenContext, SessionContext
- public interface EJBContext
The EJBContext interface provides an instance with access to the container-provided runtime context of an enterprise Bean instance.
This interface is extended by the SessionContext and EntityContext interface to provide additional methods specific to the enterprise Bean type.
- Version:
- $Revision: 1.9.6.1 $
| Method Summary | |
Identity |
getCallerIdentity()
Deprecated. Use Principal getCallerPrincipal() instead. |
Principal |
getCallerPrincipal()
Obtains the java.security.Principal of the caller. |
EJBHome |
getEJBHome()
Obtain the enterprise bean's remote home interface. |
EJBLocalHome |
getEJBLocalHome()
Obtain the enterprise bean's local home interface. |
Properties |
getEnvironment()
Deprecated. Use the JNDI naming context java:comp/env to access enterprise bean's environment. |
boolean |
getRollbackOnly()
Test if the transaction has been marked for rollback only. |
TimerService |
getTimerService()
Get access to the EJB Timer Service. |
UserTransaction |
getUserTransaction()
Obtain the transaction demarcation interface. |
boolean |
isCallerInRole(Identity role)
Deprecated. Use boolean isCallerInRole(String roleName) instead. |
boolean |
isCallerInRole(String roleName)
Tests if the caller has a given role. |
Object |
lookup(String name)
New from EJB 3.0. |
void |
setRollbackOnly()
Mark the current transaction for rollback. |
| Method Detail |
getEJBHome
public EJBHome getEJBHome()
- Obtain the enterprise bean's remote home interface.
- Returns:
- The enterprise bean's remote home interface.
- Throws:
IllegalStateException- - if the enterprise bean does not have a remote home interface.
getEJBLocalHome
public EJBLocalHome getEJBLocalHome()
- Obtain the enterprise bean's local home interface.
- Returns:
- The enterprise bean's local home interface.
- Throws:
IllegalStateException- - if the enterprise bean does not have a local home interface.
getEnvironment
public Properties getEnvironment()
- Deprecated. Use the JNDI naming context java:comp/env to access enterprise bean's environment.
Obtain the enterprise bean's environment properties.
Note: If the enterprise bean has no environment properties this method returns an empty java.util.Properties object. This method never returns null.
- Returns:
- The environment properties for the enterprise bean.
getCallerIdentity
public Identity getCallerIdentity()
- Deprecated. Use Principal getCallerPrincipal() instead.
Obtain the java.security.Identity of the caller. This method is deprecated in EJB 1.1. The Container is allowed to return alway null from this method. The enterprise bean should use the getCallerPrincipal method instead.
- Returns:
- The Identity object that identifies the caller.
getCallerPrincipal
public Principal getCallerPrincipal()
- Obtains the java.security.Principal of the caller.
- Returns:
- The Principal object that identifies the caller. This method never returns null.
isCallerInRole
public boolean isCallerInRole(Identity role)
- Deprecated. Use boolean isCallerInRole(String roleName) instead.
Test if the caller has a given role.
This method is deprecated in EJB 1.1. The enterprise bean should use the isCallerInRole(String roleName) method instead.
- Parameters:
role- - The java.security.Identity of the role to be tested.- Returns:
- True if the caller has the specified role.
isCallerInRole
public boolean isCallerInRole(String roleName)
- Tests if the caller has a given role.
- Parameters:
roleName- - The name of the security role. The role must be one of the security roles that is defined in the deployment descriptor.- Returns:
- True if the caller has the specified role.
getUserTransaction
public UserTransaction getUserTransaction() throws IllegalStateException
- Obtain the transaction demarcation interface. Only enterprise beans with bean-managed transactions
are allowed to to use the UserTransaction interface. As entity beans must always use container-managed
transactions, only session beans with bean-managed transactions are allowed to invoke this method.
- Returns:
- The UserTransaction interface that the enterprise bean instance can use for transaction demarcation.
- Throws:
IllegalStateException- - The Container throws the exception if the instance is not allowed to use the UserTransaction interface (i.e. the instance is of a bean with container-managed transactions).
setRollbackOnly
public void setRollbackOnly()
throws IllegalStateException
- Mark the current transaction for rollback. The transaction will become permanently marked for rollback.
A transaction marked for rollback can never commit. Only enterprise beans with container-managed
transactions are allowed to use this method.
- Throws:
IllegalStateException- - The Container throws the exception if the instance is not allowed to use this method (i.e. the instance is of a bean with bean-managed transactions).
getRollbackOnly
public boolean getRollbackOnly()
throws IllegalStateException
- Test if the transaction has been marked for rollback only. An enterprise bean instance can use
this operation, for example, to test after an exception has been caught, whether it is fruitless
to continue computation on behalf of the current transaction. Only enterprise beans with
container-managed transactions are allowed to use this method.
- Returns:
- True if the current transaction is marked for rollback, false otherwise.
- Throws:
IllegalStateException- - The Container throws the exception if the instance is not allowed to use this method (i.e. the instance is of a bean with bean-managed transactions).
getTimerService
public TimerService getTimerService() throws IllegalStateException
- Get access to the EJB Timer Service.
- Throws:
IllegalStateException- The Container throws the exception if the instance is not allowed to use this method (e.g. if the bean is a stateful session bean)
lookup
public Object lookup(String name)
- New from EJB 3.0. A JNDI lookup method that doesn't throw exceptions
- Parameters:
name-- Returns:
- returns null if JNDI lookup finds nothing
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