THE TUTORIAL LIBRARY
What is the difference between EAR, JAR and WAR file? A JAR file encapsulates one or more Java classes, a manifest, and a descriptor. JAR files are the lowest level of archive. JAR
Read tutorialNo, you cannot map more than one table to a single CMP Entity Bean. CMP has been, in fact, designed to map a single table.
Read tutorialNo. Decorator design pattern, is the one which exhibits very low level runtime polymorphism, for the specific and single object (Instance of the class), but not for atleast for a c
Read tutorialSince EnterpriseBeans live in a managed container, the container is free to call your EJB components methods at its leisure. The container houses the information like current statu
Read tutorialThe bulk of the changes in EJB 2.0 are found in the definition of a new CMP component model.
Read tutorialThe purpose of ejbPostCreate() is to perform clean-up database operations after SQL INSERTs (which occur when ejbCreate() is called) when working with CMP entity beans. ejbCreate()
Read tutorialHome Interface is the way to communicate with the container which is responsible for creating , locating and removing beans and Remote Interface is the link to the bean that allows
Read tutorialWHERE and ORDERBY clauses are optional in EJB QL where as SELECT and FROM are required clauses.
Read tutorialYou shouldn't. What will happen depends on the implementation, but the call will most likely be ignored.
Read tutorialThe remote client view specification is only available in EJB 2.0. The remote client view of an enterprise bean is location independent. A client running in the same JVM as a bean
Read tutorialThe local client view specification is only available in EJB 2.0. Unlike the remote client view, the local client view of a bean is location dependent. Local client view access to
Read tutorialAn EJB client JAR file is an optional JAR file that can contain all the class files that a client program needs to use the client view of the enterprise beans that are contained in
Read tutorialOne example today. A better developer tomorrow.