ankit249

 Profile Answers by ankit249 Questions by ankit249

• Apr 24th, 2006

Can you explain it with an example ?

p_shunmugaraja@yahoo.com

• Mar 24th, 2006

The thing is that a server can contain n number of containers.Whenever a client initiates for a request, it ll go to the server first , and then the server may decide to which con...

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Preeti Yadav

 Profile Answers by Preeti Yadav Questions by Preeti Yadav

• Apr 24th, 2006

Java.util.Dictionary

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prashanth

• Apr 22nd, 2006

The data will propagate from DAO's to the view(i.e jsp) using Value objects. Value objects are used for transfering data across the layers.

mohanaiahp

• Apr 19th, 2006

hi  How the data will propagate from DAO's to the view...Thanks & RegardsP.Mohan

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Atal

• Apr 21st, 2006

On .hbm xml file to define mapping, one bean class and one class for implementing all the services fot the objet.

chandra sekhar

• Apr 21st, 2006

Hibernate.cfg.xml

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mailtorkthakur

 Profile Answers by mailtorkthakur Questions by mailtorkthakur

• Apr 20th, 2006

Web server=========As its name dealing with the www. It is just an implementation of HTTP protocol (RFC1945,2616).Application server==============It is a host of separate implementaion of different pr...

Guest

• Apr 20th, 2006

Web server=========As its name dealing with the www. It is just an implementation of HTTP protocol (RFC1945,2616).Application server==============It is a host of separate implementaion of different pr...

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This was the answer Provided by some one... According to Mohan this one is not correct. Please see Mohan's reply below and more in the comments section. ejbRemove() is called for session beans every time the container destroyes the bean. So you can use this method to do the stuff you typically would do in unsetEntityContext(). For entity beans ejbRemove() is only called if the user explicitly...

Madhavikari

 Profile Answers by Madhavikari Questions by Madhavikari

• Apr 20th, 2006

For session beans, there is no need to call the for removing the instace of a bean. If the session is expired automatically the ejb container will remove the instance of the bean.But, for entity beans...

Mohan

• May 21st, 2005

To elaborate typically ejbRemove may be called on a been n number of times during it's life time .. but unsetEntityContext will only be called once on a bean.

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mailtorkthakur

 Profile Answers by mailtorkthakur Questions by mailtorkthakur

• Apr 20th, 2006

It is not mandatory to create EAR to deploy EJB. You can just create a JAR file with all dependancy resolved. There no generic way to deploy EJB on different server, Every server has it's own deployment process. So just follow the deploment steps of your server.

Prasanna Balaraman

• Dec 16th, 2005

The first step is to create EAR file, which contains both WAR, JAR files with application.xml. For Jboss:Really it is simple just copy the EAR file to the [server\default\deploy] deploy folder. For We...

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mailtorkthakur

 Profile Answers by mailtorkthakur Questions by mailtorkthakur

• Apr 20th, 2006

You can configure your container to do so. You can also use setRollbackOnly,getRollbackOnly methods. If such a requirement opt for BMP.

Rakesh

• Apr 20th, 2006

You can configure your container to do so, but you can not do it you self. If such a requirement opt for BMP.

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mailtorkthakur

 Profile Answers by mailtorkthakur Questions by mailtorkthakur

• Apr 20th, 2006

Just save the sessionbean object in your servlet session and retrive it when required.

Rakesh

• Apr 20th, 2006

Just save the sessionbean object in your servlet session and retrive it when required.

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we can run any number of JVM's.

Ghulam Abbas Shaabir

• Apr 20th, 2006

hi, keeping in mind the concept of env. variable, JAVA_HOME is globaly defined variable, we assigns class path to this variable, on compilation takes place, only one value can be assigned to a va...

kayalvizhi

• Apr 12th, 2006

How many JVM's we can run in a system? 

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karthik

• Apr 13th, 2006

hai tereTo declare the relationship b/w the beans there are three ways1.one-one,2. manyto one or one to many and 3. many to manywe have to declare the beans informantion in DD(Deployement Descrip...

Jack

• Feb 28th, 2006

3 ways:One-to-one One-to-many Many-to-many The EJB 2.0 approach to CMP allows multiple entity beans to have container-managed relationships among themselves. It accomplishes this by introducing a loca...

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Answer posted by Mohan on 2005-05-21 19:27:35: No

Vasanth

• Apr 12th, 2006

We must have a  ejbCreate(); to create a Session bean .

Abhinav Prakash

• Feb 20th, 2006

We cannot have a session bean without ejbCreate().the bean class must implement the session bean interface. ejbcreate is declared in the interface.ejbCreate() is a container call back method which is ...

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hmashruf

 Profile Answers by hmashruf Questions by hmashruf

• Apr 7th, 2006

To add, in CMP container handles queries to database and so it is good when interacting/deploying in various database environments.While in BMP bean developer has to write SQL queries to load and...

somu chowdareddy

• Oct 4th, 2005

Maintain the persistance in database side.

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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>

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suman

• Mar 25th, 2006

Yes u can do it by serrting SetRollbackonly in your DD

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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.

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ak40732

 Profile Answers by ak40732 Questions by ak40732

• Mar 23rd, 2006

JNDI is a service which is offered by the servers like Weblogic etc.We can make any business or entitiy components which are reusable across different applications to be available to any type of clien...

s_s78

 Profile Answers by s_s78 Questions by s_s78

• Mar 20th, 2006

client must know JNDI name of EJB before looking for it it will go through RMI-IIOP protocol.and lookup is performed by container

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s_s78

 Profile Answers by s_s78 Questions by s_s78

• Mar 20th, 2006

Session bean has business logic and database operation methods.Entity bean's one feature is to make your application database independent. means if you change database,tables u need not to see code written in your session bean u just need to edit very few line in you entity DD files.

antony

• Jan 14th, 2006

Thanks vemodher.... Good answer

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s_s78

 Profile Answers by s_s78 Questions by s_s78

• Mar 20th, 2006

A1. EJB QL is introduced in EJB 2.0 specification it is used to write only finder(Select) queries for Entity beans. it is simple to write and give OO feel. it supports lazy loading.A2.It is only appli...

ravikantiramu

 Profile Answers by ravikantiramu Questions by ravikantiramu

• Mar 7th, 2006

Ejb Context is the container implemented object....Using this object....We can get the information about the bean,and check the user role and find the transaction status.........

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