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a question rising in the mind of xmldtd designers is whether to model and encode retain information using an attribute or alternatively using an
ejb elements operate inside a container environment and rely heavily on the container to give security the four key services needed for the
in order to provide portable and reliable ejb elements the following restrictions apply to
1lifecycle management individual enterprise beans do not accept to explicitly manage process allocation object activation thread management or
ejb 20 has the additional advantages over the ejb 11 given below1 local interfaces these are beans that can be needed locally that means by the same
session bean is a non-persistent object that provides some business logic running on the server session beans do not provide system break down
ejb 2x is broadly adopted server side component architecture for j2ee1 ejb is a remote distributed multi-tier system and allows protocols like iiop
ejbs are distributed elements which need the rmi framework for object distribution an ejb application server gives more services like object pooling
rmi parameters primitive types are given by value2 references to remote objects are given as remote references that allow the client process to call
rmi object servicesin addition to its remote object architecture rmi gives some basic object services which may be needed in a distributed
struts framework j a
object-to-relational or mappingthere are various ways to persist data and the persistence layer is one of the most important layers in any
annotation or attribute oriented programmingthere are two types of code generation processespassive code generation is template driven input process
benefits of aop aspect oriented programmingoop can give the system level code like transaction management logging security etc to scatter throughout
normal 0 false false false en-us x-none x-none objec t orie nte d programm i ng o op
aspect-oriented programming aop represents oop object oriented programming by giving the developer to
test driven development tddtdd process gives your confidence in the delivered code for the following things1 tdd can remove duplication of code and
normal 0 false false false en-us x-none x-none
creating applications based on soa select your implementation technologies carefully carefully check if web services are suitable sometimes using
there are two different types of data in a jsp page.1. static part which occurs copied directly to the response by the jsp engine.2. dynamic part
1. pre-translated before the jsp file has been compiled and translated into the servlet.2. translated the jsp file has been compiled and
the clustering regulates high scalability and availability. the basic considerations for servlet clustering are1. objects opened in a session
j2ee java 2 enterprise edition is an environment for deploying and developing enterprise applications on various operating system. the j2ee