Ginni

• Jul 21st, 2005

Yes, you can create entity bean without impelementing the create() method. The ejbs will be instantiated by findByPK or any finder methods.

Answer Question  Select Best Answer

Lavanya

• Apr 17th, 2005

EJB Architecture consists of :  a) EJB Server b) EJB containers that run on these servers, c) Home Objects, Remote EJB Objects and Enterprise Beans that run within these containers...

Answer Question  Select Best Answer

Absolutely yes, but the way to do that depends on the Exception, since there are no standards for that. Some examples: ·When you have an javax.ejb.EJBException, you can use the getCausedByException() that returns a java.lang.Exception. ·A java.rmi.RemoteException there is a public field called detail of type java.lang.Throwable ·With a java.sql.SQLException you need to use the method getNextException()...

manoj b raut

• Oct 26th, 2005

100% depends upon the mode of execution .

Answer Question  Select Best Answer

Rajesh Rokkam

• Jun 3rd, 2005

Yes,undefined primary keys are possible with Entity Beans.The type is defined as java.lang.Object.

Answer Question  Select Best Answer

RajeshRokkam

• Jun 3rd, 2005

Two Entity Beans are said to be Identical,if they have the same home inteface and their primary keys are the same.To test for this ,you must use the component inteface's isIdentical() method.

Answer Question  Select Best Answer

RajeshRokkam

• Jun 3rd, 2005

One of the fundamental concepts of Entity Beans is that they are the pooled objects.Instance pooling is the service of the container that allows the container to reuse bean instances,as opposed to cre...

Answer Question  Select Best Answer

Jignesh

 Profile Answers by Jignesh Questions by Jignesh

• Oct 31st, 2005

First of all the question is not very clear and specific. But I hope this helps:You call create() method of the home object which in turn calls the ejbCreate() of the bean and as you mentioned that th...

Answer Question  Select Best Answer

surajit saha

• Aug 1st, 2006

In weblogic 8.1 the security architecture has been improved by improving the functionality for creating security roles and policies. Version imporved key store and SSL configuration support and adds t...

Answer Question  Select Best Answer

Sumit Kumar

• Aug 30th, 2005

A Bean persists by having its properties, fields, and state information saved and restored to and from storage. The mechanism that makes persistence possible is called serialization. When a Bean insta...

Answer Question  Select Best Answer

Rajnish Sasmal

• Sep 27th, 2005

You can use two methods like insertRow() and deleteRow() of ejbCreate() for insert and delete the data from the data base in entity Bean.

Answer Question  Select Best Answer

Chris Thompson

• Sep 18th, 2005

The primary key is the only way the container has of distinguishing one bean from another. This is particularly important for pooling, where the container uses the primary key to determine if the dat...

Answer Question  Select Best Answer

EJBContext is an interface that is implemented by the container, and it is also a part of the bean-container contract. Entity beans use a subclass of EJBContext called EntityContext. Session beans use a subclass called SessionContext. These EJBContext objects provide the bean class with information about its container, the client using the bean and the bean itself. They also provide other functions....

santh kumar

• Feb 28th, 2006

Hi Guys,EJBContext interface provides methods for interacting with the container.Such as u can obtain the enterprise bean's remote home interface(getEJBHome() method),local home interface(getEJBLocalH...

Answer Question  Select Best Answer

suman

• Mar 25th, 2006

 yes u can do it .but you have to mention  the transaction attribute in the Deploymant descriptor<trans-attribute>Required</trans-attribute>

Answer Question  Select Best Answer

bala

• Feb 10th, 2006

      the default state of a session bean is " STATELESS"

Answer Question  Select Best Answer

Vinoth Senthill M G

• Mar 6th, 2006

1. A Message Driven Bean (MDB) is an Enterprise JavaBean (EJB) similar to a session bean, except it responds to a JMS message rather than an RMI event. 2.MDBs were introduced in the EJB 2.0 specificat...

Answer Question  Select Best Answer

K N

• Feb 22nd, 2006

Http://e-docs.bea.com/wls/docs81/jdbc/thirdparty.html#thirdparty001

Answer Question  Select Best Answer

Jack

• Feb 28th, 2006

Current version right Now is EJB3.0[Jan 2006]EJB 3.0 FeaturesSession Beans ---------------POJO bean class - No requirement for implementing javax.ejb.SessionBean interfaces POJI interface - No require...

Answer Question  Select Best Answer

suman

• Mar 25th, 2006

Yes u can do it by serrting SetRollbackonly in your DD

Answer Question  Select Best Answer

rkj2ee2005

 Profile Answers by rkj2ee2005 Questions by rkj2ee2005

• Mar 25th, 2006

It is used for transaction support in stateful session beans. EJB container calls call back functions on sfsb (if it implements SessionSynchronization interface) after transaction started, before completion and after completion.Bean developer can do house keeping stuff in these methods.

Answer Question  Select Best Answer

srikanth

• Nov 2nd, 2006

         Hi,        if user transaction is started on one method and populates across the methods it is possible only on statefull...

Answer Question  Select Best Answer