1. How do J2EE application servers in general and the Weblogic servers in particular help software development? 2. What are EJBs? What are factors to determine which type of the EJBs to use? Give an example for each type you built recently in the projects you worked with and your reason of using that? 3. Describe how transactions are handled in EJBs. What happens to an EJB if an Exception is not caught? 4. Describe different ways of deploying EJBs to the Weblogic servers. Describe the necessary
How to configure the jdbc driver in welogic server? What are all the necessary jar files to be used?
1. How EjbQL ara impemented when it is necessary?2. what do you mean by shared transactional state data maintained by EJB?3. what do you mean by CMP & BMP & what is basic difference between them?4. where are databese maneged by Entity bean is implemented & how many instance of the Entity beanfor each client is maintained by Ejb container?please describe ths question conceptually?5. why BMP class returns null & why CMP implementation class reurns instanceof PK class?6. what do you mean by EJB client
What is a message Driven java bean?What is specific advantage of jsp on client side for web based development?
Latest Answer: I dont think its correct; because, the JNDI is a global naming service, not per individual application. So, the the ejb name should be in different name-space at the least.For example, there may be name spaces like this,bean1, my/bean1, mine/bean1 and ...
Latest Answer: the default state of a session bean is " STATELESS" ...
Latest Answer: HiWell return type of create method is always Bean's Remote or Local Interface else if u r talking about return type of ejbCreate() then it will be pk in case of CMP that infact too return null. ...
When should we use session bean/entity bean?I was unable to judge?For Example :For Airline Project where we can use EJB\'s?How can we differentiate the stateful and stateless session beans?
What is the diff between interface and abstract class?why interfaces?why packages?why abstract class?what is the diff between uncheked exception,checked exceptions?why jvm works internally?why java does not support pointers?what is diff bet callby value and call by reference in java?
Latest Answer: Objects returned by looking up a JNDI Name are returned by RMI-IIOP protocol. Since this protocol is language independent, objects returned by it should be typecasted using RMI-IIOP compliant method. Therefore we use PortableRemoteObject.narrow() ...
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