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JSP Life Cycle

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a.)InstantiationEvent(when container creates JES class object) Life cycle methods These life cycle methods will be called through servlet life cycle method(init(ServletConfig)) 1.) jspInit()->for programmers initailization logic 2.) _jspInit()->for container initialization logic b.)Request Processing Event Life cycle methods These method will be called through servlet life cycle method 1st service(req,res) 1.) _jspService(-,-) c.)Destruction Event(When container is about to destroy JES class object) Life cycle methods These methods will be called through destroy() life cycle method of servlet component 1.) jspDestroy()-->for programmer 2.) _jspDestroy()-->for container JSP life cycle methods are called through servlet life cycle methods with support of JES class super class(HttpJspBase in tomcat server) Two phases of JSP a.)Phase-1(Translation Phase) Here jsp pages will be translated into an equivalent servlet class...
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Java Mail API

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Java Mail API: -->DB software manages the data in the form of DB table cols -->WebServer manages and executes web application -->JNDI Registry manages objects -->Similarly mail server manages and executes Email Accounts and Email Messages        Java App---(jdbc api(java.sql.javax.sql,...))---->DW Software        Java App---(jndi api(javax.naming and its sub packages))--->JNDI registry             E.g:- rmi registry, Cos registry...        Java App--(java mail api(javax.mail,javax.activation ))-->Mail Server            E.g:- james server, Lotus Notes, Microsoft exchange server Mail Server Architecture:- 1.)SMTP=Simple Mail Transfer Protocol 2.)POP=Post Office Protocol 3.)IMAP=Internet Mail Access Protocol --> Incoming server  receive...
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Project Architecture's

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1.) Functional flow/ Architecture a.) Only for 6+/7+years b.) Explain the flow of process/business 2.) Technical Flow/Architecture a.) Upto 5+ years b.) Explain technologies /components that are involved in the project Servlet & JSP Project Architecture:- 1.)What is need of Business Deligate to convert VO class object to DTO class object ? a.) If Business Deligate is not there servlet component directly prepares DTO class object by receiving and translating form data and passes to service class, if service class excepts certain input in other format like numeric employee number as string employee number then we need to modify servlet component code i.e For the changes that happened in business tier service component we have to modify servlet component of presentation tier b.) If Business Deligate is taken then it gets original form data as VO class object having string inputs and converts VO class object to DTO class object to pass to service class c.) If serv...
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