Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces.

This page discusses - Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces.

Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces.

Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces.
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Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces.

A client NEVER DIRECTLY accesses instances of the session bean’s class. A client always uses the session bean’s COMPONENT interface to access a session bean’s instance. The class that implements the session bean’s component interface is provided by the container.

A session EJBObject supports:

  • The business logic methods of the object. The session EJBObject delegates invocation of a business method to the session bean instance.

  • Get the session object’s remote home interface.

  • Get the session object’s handle.

  • Test if the session object is identical with another session object.

  • Remove the session object. 

				
public interface EJBObject extends Remote {
	EJBHome getEJBHome() throws RemoteException;
	Handle getHandle() throws RemoteException;
	Object getPrimaryKey() throws RemoteException;
	boolean isIdentical(EJBObject obj) throws RemoteException;
	void remove() throws RemoteException, RemoveException;
}

A session EJBLocalObject supports:

  • The business logic methods of the object. The session EJBLocalObject delegates invocation of a business method to the session bean instance.

  • Get the session object’s local home interface.

  • Test if the session object is identical with another session object.

  • Remove the session object.

public interface EJBLocalObject {
	EJBLocalHome getEJBLocalHome() throws EJBException;
	Object getPrimaryKey() throws EJBException;
	boolean isIdentical(EJBLocalObject obj) throws EJBException;
	void remove() throws RemoveException, EJBException;
}

Method getPrimaryKey() on session bean will throw EJBException (local SB) or RemoteException (remote SB) because session bean does not have primary key.

EJBObject interface extends Remote (marker) interface.

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Chapter 2. Client View of a Session Bean Home Chapter 3. Session Bean Component Contract

Tutorials

  1. Appendix A. First Appendix
  2. Second Section
  3. Third Section
  4. Part II. Appendixes
  5. From a list, identify the responsibility of the bean provider and the responsibility of the container provider for a message-driven bean.
  6. Chapter 6. Component Contract for Container-Managed Persistence (CMP)
  7. Identify correct and incorrect statements or examples about persistent relationships, remove protocols, and about the abstract schema type of a CMP entity bean.
  8. Identify the interfaces and methods a CMP entity bean must and must not implement.
  9. Match the name with a description of purpose or functionality, for each of the following deployment descriptor elements: ejb-name, abstract-schema-name, ejb-relation, ejb-relat
  10. Identify correctly-implemented deployment descriptor elements for a CMP bean (including container-managed relationships).
  11. From a list, identify the purpose, behavior, and responsibilities of the bean provider for a CMP entity bean, including but not limited to: setEntityContext, unsetEntityContext, ejbC
  12. Chapter 7. CMP Entity Bean Life Cycle
  13. Identify correct and incorrect statements or examples about the rules and semantics for relationship assignment and relationship updating in a CMP bean.
  14. From a list, identify the responsibility of the container for a CMP entity bean, including but not limited to: setEntityContext, unsetEntityContext, ejbCreate, ejbPostCreate, ejbActi
  15. Given a code listing, determine whether it is a legal and appropriate way to programmatically access a caller's security context.
  16. Chapter 10. Message-Driven Bean Component Contract
  17. Identify correct and incorrect statements about the purpose and use of the deployment descriptor elements for environment entries, EJB references, and resource manager connection factory r
  18. Identify the use and the behavior of the ejbPassivate method in a session bean, including the responsibilities of both the container and the bean provider.
  19. Chapter 12. Exceptions
  20. Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).
  21. Identify EJB 2.0 container requirements.
  22. Chapter 1. EJB Overview
  23. Identify correct and incorrect statements or examples about EJB programming restrictions.
  24. Chapter 9. EJB-QL
  25. Identify correct and incorrect statements or examples about the purpose and use of EJB QL.
  26. Identify correct and incorrect conditional expressions, BETWEEN expressions, IN expressions, LIKE expressions, and comparison expressions.
  27. Identify correct and incorrect statements or examples about the client view of a entity bean's remote component interface (EJBObject).
  28. Given a list, identify which are requirements for an EJB-jar file.
  29. Match EJB roles with the corresponding description of the role's responsibilities, where the description may include deployment descriptor information.
  30. Chapter 2. Client View of a Session Bean
  31. Chapter 13. Enterprise Bean Environment
  32. Chapter 8. Entity Beans
  33. Identify the use, syntax, and behavior of, the following entity bean home method types, for Container-Managed Persistence (CMP); finder methods, create methods, remove methods, and home me
  34. Identify correct and incorrect statements or examples about an entity bean's primary key and object identity.
  35. Identify correct and incorrect statements or examples about the client's view of exceptions received from an enterprise bean invocation.
  36. Identify correct and incorrect statements or examples about application exceptions and system exceptions in entity beans, session beans, and message-driven beans.
  37. Given a particular method condition, identify the following: whether an exception will be thrown, the type of exception thrown, the container's action, and the client's view.
  38. Given a list of responsibilities related to exceptions, identify those which are the bean provider's, and those which are the responsibility of the container provider. Be prepared to recog
  39. SCBCD Study Guide
  40. Identify the use and behavior of the MessageDrivenContext interface methods.