Answer posted by Mohan on 2005-05-21 17:14:47: CMR - Container Managed Relationships allows the developer to declare various types of relationships between the entity beans

Mohan

• May 21st, 2005

CMR - Container Managed Relationships allows the developer to declare various types of relationships between the entity beans

Answer Question  Select Best Answer

Answer posted by Mohan on 2005-05-21 17:08:14: Session Context Contains information that a Session Bean would require from the container  Entity Context contains the information that an Entity Bean would require from a container

Mohan

• May 21st, 2005

Session Context Contains information that a Session Bean would require from the container  Entity Context contains the information that an Entity Bean would require from a container

kanth

• Apr 28th, 2005

Entity beans use a subclass of EJBContext called EntityContext. Session beans use a subclass called SessionContext

Answer Question  Select Best Answer

Answer posted by Mohan on 2005-05-21 17:07:03: JNDI Context Provides a mechanism to lookup resources on the network Initial Context constructor provides the initial context. Session Context has all the information a session bean would require from the container Entity Context has all the information that an Entity bean would need from a container Ejb Context contains the information...

Mohan

• May 21st, 2005

JNDI Context Provides a mechanism to lookup resources on the network Initial Context constructor provides the initial context. Session Context has all the information a session bean would re...

Answer Question  Select Best Answer

Answered by Nikhil on 2005-05-11 01:52:59: The lifetime of an MDB instance is controlled by the container. Only two states exist: Does not exist and Ready , as illustrated in the following figure:     The life of an MDB instance starts when the container invokes newInstance() on the MDB class to create a new instance. Next, the container calls setMessageDrivenContext() followed...

Nikhil

• May 11th, 2005

The lifetime of an MDB instance is controlled by the container. Only two states exist: Does not exist and Ready , as illustrated in the following figure:     The life of an MDB ins...

Answer Question  Select Best Answer

Answered by Jey Ramasamy on 2005-05-08 20:04:33: No. This method must not contain any input parameters and cannot be overloaded as well.

Jey Ramasamy

• May 9th, 2005

No. This method must not contain any input parameters and cannot be overloaded as well.

Answer Question  Select Best Answer

Answered by Jey on 2005-05-08 18:01:39: There are six transaction attributes that are supported in EJB. 1. NotSupported 2. Supports 3. Required 4. RequiresNew 5. Mandatory 6. Never

Jey

• May 8th, 2005

There are six transaction attributes that are supported in EJB. 1. NotSupported 2. Supports 3. Required 4. RequiresNew 5. Mandatory 6. Never

Answer Question  Select Best Answer

Answered by Jey on 2005-05-08 12:30:37: Message Driven Bean (MDB) is an enterprise bean which runs inside the EJB container and it acts as Listener for the JMS asynchronous message . It does not have Home and Remote interface as Session or Entity bean. It is called by container when container receives JMS asynchronous message. MDB has to implement MessageListener which has a method onMessage(Message...

Jey

• May 8th, 2005

Message Driven Bean (MDB) is an enterprise bean which runs inside the EJB container and it acts as Listener for the JMS asynchronous message . It does not have Home and Remote interface as Session or...

Answer Question  Select Best Answer

Answered by Jey on 2005-05-08 11:55:29: Activation and Passivation is appilicable for only Stateful session bean and Entity bean.   When Bean instance is not used for a while by client then EJB Container removes it from memory and puts it in secondary storage (often disk) so that the memory can be reused. This is called Passivation.  When Client calls the bean instance again then...

Jey

• May 8th, 2005

Activation and Passivation is appilicable for only Stateful session bean and Entity bean.   When Bean instance is not used for a while by client then EJB Container removes it from memory an...

Answer Question  Select Best Answer

Raveendra Ponnam

• Apr 29th, 2005

The following steps describe the life cycle of an entity bean instance  An entity bean instances life starts when the container creates the instance using newInstance and then initialises it...

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