What is ejbdoc?difference between connector,server,container?

p_shunmugaraja@yahoo.com

Mar 24th, 2006

The thing is that a server can contain n number of containers.Whenever a client initiates for a request, it ll go to the server first , and then the server may decide to which container the request has to be forwarded. A common example is , take any application server, say oc4j, weblogic etc. They are actually servers, and they have minimum 2 containers (Web Container - for processing the HTTP request and EJB Container - for handling the object pooling , business logic).Connector------------------ It is an architecture that is defined and specified by Sun. That architecture was designed and developed mainly to run legacy systems to run on any J2EE complaint server. Say, for example, u have a legacy system , that was developed some decades before and u are not willing to throw the system because of its complexities and versatile business logic. Defn. u cannot run that legacy system in j2ee complaint app. server, since the legacy system was not met with the design and the specification that SUN mentioned. But, by using connector architecture, u can make the system to run in j2ee complaint app server by writing a component called resource adapter (which every app server can understand). U write the resource adapter only once, that's it. The App. Server takes care the rest.