Latest Answer: Transaction will be propogated from web tier to EJB tier, when the client code (web tier) is already in the transaction and server method (EJB) which is getting called has some transaction attributes like required,supports,mandatory etc. ...
Latest Answer: Dear, Both of them are java solution for distributed computing. RMI offers remote access to an object running in another JVM and no other services. But EJB offers far more services than RMI apart from remote method calling. EJB leverages ...
Latest Answer: Dear, Remember EJB is an API for distributed computing, it can be accessed form different client (CORBA, Thick Clients like Swings or stand alone Java programms etc..), including Servlets or JSP (Thin Client) which has HTTPSession for maintaining client ...
What is meant by Serialization and Externalization? Serialization is a Marker interface,so what is the use of WriteObject() anf ReadObject(), Where it is actually used? Give me some real time examples?
Latest Answer: I agree with Jacks to an extent. So called N/W traffic issue is all bookish stuff. OK now see these scenario1) Client calling Entity Bean directly.client -------->Servlet ---------> Entity Bean2) Client calling Entity bean via Session Facadeclient-------->Servlet------>SessionFacade-------->entity ...
Latest Answer: Java was designed to not only be cross-platform in source form like C, but also in compiled binary form. Since this is frankly impossible across processor architectures Java is compiled to an intermediate form called byte-code. A Java program never really ...
Latest Answer: static block is a group of statements enclosed in curly braces and a prefix keyword static is used before that block. this peice of code are executed once in its life time. ...
Latest Answer: It's totally dependent on condition. When there is a situation that we have to provide the partial implementation of some or all the method of a Object then One should go towards Abstract class. When all the method are abstract then one can choose the ...
Latest Answer: first prepare jar file,if already create the domain for application,then no problem,otherwise create a domain for the application.1.go o start button/programfiles/bea home/wizardthen create domain.follow steps as given by above person. ...
Latest Answer: java.util.Dictionary ...
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