Servlet and JavaServer Pages API Documentation: Interface SingleThreadModel

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## javax.servlet
Interface SingleThreadModel

public interface SingleThreadModel

Ensures that servlets handle only one request at a time. This interface has no methods.

If a servlet implements this interface, you are guaranteed that no two threads will execute concurrently in the servlet's `service` method. 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.

If a servlet implements this interface, the servlet will be thread safe. However, this interface does not prevent synchronization problems that result from servlets accessing shared resources such as static class variables or classes outside the scope of the servlet.

Version:
  $Version$
Author:
  Various

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