NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator's Guide

Glossary
NonStop Servlets for JavaServer Pages (NSJSP) 6.1 System Administrator’s Guide—596210-006
Glossary-9
scalability
scalability. The ability to increase the size and processing power of an online transaction
processing system by adding processors and devices to a system, systems to a
network, and so on.
Secure Sockets Layer (SSL). A protocol for private communication on the World Wide
Web and authentication of a web server by a web client.
servlet mapping. It is the mapping between the URL and the servlet (configured to process
the requests matching that URL).
server. A process or set of processes that satisfy requests from web clients in a client-
server environment.
server class. A grouping of duplicate copies of a single server program, all of which
execute the same object program.
server process. A process that implements requests for an application and returns replies
to the requester.
server programs. In NonStop TS/MP, programs that handle the data manipulation and data
output activities for online transaction processing applications. Server programs are
designed to receive request messages from requester programs; perform the desired
operations, such as database inquiries or updates, security verifications, numerical
calculations, or data routing to other computer systems; and return reply messages to
requester programs.
servlet. A server-side Java program that any World Wide Web browser can access. It
inherits scalability and persistence from the Pathway CGI server that manages it. The
Java class named servlets executes in server environments such as World Wide
Web servers. The Servlet API is defined in a draft standard by Sun Microsystems.
Servlet Server Class. Refers to one of the server classes configured with an installation of
NSJSP. Each installation of NSJSP results in two server classes. One server class
hosts and processes requests for user application and the other is used by the Admin
application. The server class that will host and process requests for user application is
referred to as the Servlet Server Class. With NSJSP 6.1, the name of the Servlet
Server Class is prompted for during installation.
session. A session, also called an HTTP session, provides the means to associate an
HTTP Client and an HTTP Server. This association or session, persists over multiple
connections or requests or both during a given time period. Sessions are used to
maintain the state and also user identity across multiple requests and connections. An
example of such a state is the contents of a shopping cart, which is stored in a session
object.
session object. Also called as a Java object. It is a medium to interact with client and
server.
setup script. An utility used to install NSJSP.