Methods of singlethreadmodel interface
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Enviado por Pacheco de Souza flag Denunciar. Make your synchronized block as small as possible. Get the lock, get in, get what you need, and get the heck out so the lock can release and other threads can run that code. This interface has no methods. The servlet container can make this guarantee by synchronizing access to a single instance of the servlet, or by maintaining a pool of servlet instances and dispatching each new request to a free servlet.
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Singlethreadmodel Interface In Servlet
SingleThreadModel (Java EE 5 SDK)
Overview 1. Servlet Intro 2. JSP Intro 3. MVC 4. Environment 5. Container facilities 6. View facilities 7.
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What is SingleThreadModel in Servlets?
In yesterday's session you learned important concepts and technologies that form part of J2EE. In the final part of yesterday's session, you learned the problem statement of the Airline Ticket Booking System MVCapplication case study and then went on to design the class diagram and ER diagram for the application. This will prepare the ground for the sample applications you will build during the next three weeks. You will study Java servlet concepts, the Java Servlet API, and different techniques for session handling; finally, you will write a sample Java servlet and deploy it in the WebLogic Server. In addition to the basics of Java servlets, in tomorrow's session, you will be studying the advanced concepts of Java servlets such as filters and listeners.
Normally, the system makes a single instance of your servlet and then creates a new thread for each user request. This means that if a new request comes in while a previous request is still executing, multiple threads can concurrently be accessing the same servlet object. Consequently, your doGet and doPost methods must be careful to synchronize access to fields and other shared data if any since multiple threads may access the data simultaneously. Note that local variables are not shared by multiple threads, and thus need no special protection. In principle, you can prevent multithreaded access by having your servlet implement the SingleThreadModel interface, as below.