Given a list of methods for a stateful or stateless session bean class, define which of the following operations can be performed from each of those methods: SessionContext interface methods, UserTransaction methods, Java Naming and Directory Interface API (JNDI API) access to java:comp/env environment naming context, resource manager access, and other enterprise bean access.

Stateful Session Bean

Table 4.1. Operations allowed in the methods of a stateful session bean

Bean methodBean method can perform the following operations
Container-managed transaction demarcationBean-managed transaction demarcation
constructor--
setSessionContext

SessionContext methods: getEJBHome, getEJBLocalHome.

JNDI access to java:comp/env

SessionContext methods: getEJBHome, getEJBLocalHome.

JNDI access to java:comp/env

ejbCreate

ejbRemove

ejbActivate

ejbPassivate

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, isCallerInRole, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, isCallerInRole, getEJBObject, getEJBLocalObject, getUserTransaction.

UserTransaction methods

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

Business method from component interface

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, getRollbackOnly, isCallerInRole, setRollbackOnly, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, isCallerInRole, getEJBObject, getEJBLocalObject, getUserTransaction.

UserTransaction methods

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

afterBegin

beforeCompletion

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, getRollbackOnly, isCallerInRole, setRollbackOnly, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

N/A

(a bean with bean-managed transaction (BMT) demarcation cannot implement the SessionSynchronization interface)

afterCompletion

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, isCallerInRole, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

Stateless Session Bean

Table 4.2. Operations allowed in the methods of a stateless session bean

Bean methodBean method can perform the following operations
Container-managed transaction demarcationBean-managed transaction demarcation
constructor--
setSessionContext

SessionContext methods: getEJBHome, getEJBLocalHome.

JNDI access to java:comp/env

SessionContext methods: getEJBHome, getEJBLocalHome.

JNDI access to java:comp/env

ejbCreate

ejbRemove

SessionContext methods: getEJBHome, getEJBLocalHome, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

SessionContext methods: getEJBHome, getEJBLocalHome, getEJBObject, getEJBLocalObject, getUserTransaction.

JNDI access to java:comp/env

Business method from component interface

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, getRollbackOnly, isCallerInRole, setRollbackOnly, getEJBObject, getEJBLocalObject.

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

SessionContext methods: getEJBHome, getEJBLocalHome, getCallerPrincipal, isCallerInRole, getEJBObject, getEJBLocalObject, getUserTransaction.

UserTransaction methods

JNDI access to java:comp/env

Resource manager access

Enterprise bean access

Professional hosting     Belorussian informational portal         Free SCWCD 1.4 Study Guide     Free SCDJWS 1.4 Study Guide     SCDJWS 1.4 Quiz     Free IBM Certified Associate Developer Study Guide     IBM Test 000-287. Enterprise Application Development with IBM WebSphere Studio, V5.0 Study Guide     Free Mock Exam Engine