Want Programs on One column mapping to Multiple Tables(ie.,Primary & Foreign key relationships)along with Deployment Descriptors
In EJB we r declaring Home and Remote interfaces and not implementing these two interfaces in our Bean class. But we r still implementing the methods in our bean class as business methods?
Latest Answer: In a distributed system it is the idea that the resources accessed by a user can be anywhere on the network without the user having any idea where the resource is located. A file could be on the user's own PC, or thousands of miles away on another server, ...
Latest Answer: Interfaces are used in client to call the implementation class running in server. ...
Latest Answer: When business method fails due to database connection or any other unexpected exception. ...
Latest Answer: It is usually thrown from ejbLoad() and ejbStore() methods. This occurs when the row the entity bean tries to update doesnot exist. ...
Latest Answer: When ejbFind/ejbSelect(select query) fails entity bean will throw FinderExceptionWhen ejbCreate(insert query) fails entity bean will throw CreateException ...
Latest Answer: one is setting up the entity bean context and the other for session bean context. ...
Latest Answer: its just like a unique identity.every entity bean has a primarykey class .in that we have to write code for finding the entity bean.in that class we have to implement hashcode() and equals(). ...
Latest Answer: ejbCreate() is a method that must exist in all EJBs, it is a method that will be called by the EJB container to create a remote object when it is requested to do so by the client. ejbPostCreate() only exist in entity beans, it is called straight after ...
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