Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).

This page discusses - Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).

Ads

Tutorials   
Chapter 5. Client View of an Entity Identify correct and incorrect statements about the Application Assembler's responsibilities, including the use of deployment descriptor elements related to transactions and the identifica Given a list of responsibilities, identify whose which are the Container's with respect to transactions, including the handling of getRollbackOnly, setRollbackOnly, getUserTransacti EJB Transactional Attributes Chapter 11. Transactions Given a list of scenarios, identify which will result in an ejbRemove method not being called on a bean instance. Given a list of responsibilities related to session beans, identify those which are the responsibility of the session bean provider and those which are the responsibility of the EJB contai 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 metho Chapter 4. Session Bean Life Cycle Identify correct and incorrect statements or examples about the client view of a session bean's local and remote component interfaces. Identify the interface and method for each of the following: retrieve the session bean's remote home interface, retrieve the session bean's local component interface, determine if the sessio Match the correct description about purpose and function to which session bean type they apply: stateless, stateful, or both. Chapter 14. Security Management Given a security-related deployment descriptor tag, identify correct and incorrect statements and code related to that tag. Given a list of responsibilities, identify which belong to the deployer, bean provider, application assembler, container provider, system administrator, or any combination. From a list of responsibilities, identify which belong to the application assembler, bean provider, deployer, container provider, or system administrator. Part I. Exam Objectives Preface Identify the interfaces and methods a JMS message-driven bean must implement. Identify the use and behavior of the MessageDrivenContext interface methods. SCBCD Study Guide 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 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. Identify correct and incorrect statements or examples about application exceptions and system exceptions in entity beans, session beans, and message-driven beans. Identify correct and incorrect statements or examples about the client's view of exceptions received from an enterprise bean invocation. Identify correct and incorrect statements or examples about an entity bean's primary key and object identity. 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 Chapter 8. Entity Beans Chapter 13. Enterprise Bean Environment Chapter 2. Client View of a Session Bean Match EJB roles with the corresponding description of the role's responsibilities, where the description may include deployment descriptor information. Given a list, identify which are requirements for an EJB-jar file. Identify correct and incorrect statements or examples about the client view of a entity bean's remote component interface (EJBObject). Identify correct and incorrect conditional expressions, BETWEEN expressions, IN expressions, LIKE expressions, and comparison expressions. Identify correct and incorrect statements or examples about the purpose and use of EJB QL. Chapter 9. EJB-QL Identify correct and incorrect statements or examples about EJB programming restrictions. Chapter 1. EJB Overview Identify EJB 2.0 container requirements. Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).

Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).

A local client can access an entity object through the entity bean’s local [component] interface. An entity bean’s local interface MUST extend the javax.ejb.EJBLocalObject interface. A local interface defines the business methods that are callable by local clients.

public interface Account extends javax.ejb.EJBLocalObject {
	void debit(double amount)
		throws InsufficientBalanceException;
	void credit(double amount);
	double getBalance();
}					
					
Methods of the entity bean’s local interface MUST NOT throw the java.rmi.RemoteException.

The javax.ejb.EJBLocalObject interface defines the methods that allow the local client to perform the following operations on an entity object’s local reference:

  • Obtain the local home interface for the entity object.

  • Remove the entity object.

  • Obtain the entity object’s primary key.

The CONTAINER provides the implementation of the methods defined in the javax.ejb.EJBLocalObject interface. Only the business methods are delegated to the instances of the enterprise bean class.

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

Advertisements

Share on Google+Share on Google+

Identify correct and incorrect statements or examples about the client view of an entity bean's local component interface (EJBLocalObject).

Posted on: April 18, 2011 If you enjoyed this post then why not add us on Google+? Add us to your Circles

Advertisements

 
Comments:0

Ads

 

Ads