HP Integrity NonStop J-Series User Manual

Page 462

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In traditional programming the flow is controlled by a central piece of code. Using Inversion of
Control this central control as a design principle is left behind. Although the caller will eventually
get its answer, how and when is out of control of the caller. It is the callee who decides to answer
how and when.

J

J2EE Environments

J2EE Environment consist of J2EE platform that represents a single standard for implementing and
deploying multi-tier enterprise applications. Typically, such applications are configured as a client
tier to provide the user interface, one or more middle tiers that provide client services and business
logic for an application, and a data tier consisting of backend enterprise information systems
(EIS) that provide data management.

Java Runtime
Arguments

A Java application can accept any number of arguments from the command line. This allows the
user to specify configuration information when the application is launched. The user enters
command-line arguments when invoking the application and specifies them after the name of the
class to be run. For example, suppose a Java application called Sort sorts lines in a file. To sort
the data in a file named friends.txt, a user would enter:java Sort friends.txt.

JavaBean

JavaBeans technology is the component architecture for the Java 2 Platform, Standard Edition
(J2SE). Components (JavaBeans) are reusable software programs that you can develop and
assemble easily to create sophisticated applications. JavaBeans technology is based on the
JavaBeans specification.

M

Model-View-Controller

Model–View–Controller (MVC) is an architectural pattern used in software engineering. Successful
use of the pattern isolates business logic from user interface considerations, resulting in an
application where it is easier to modify either the visual appearance of the application or the
underlying business rules without affecting the other. In MVC, the model represents the information
(the data) of the application; the view corresponds to elements of the user interface such as text,
checkbox items, and so forth; and the controller manages the communication of data and the
business rules used to manipulate the data to and from the model.

Module File
Caching

The Module File Caching (MFC) feature shares the prepared statement plans among the NonStop
SQL/MX database connections. It helps in reducing the SQL compilation time during the steady
state of the JDBC or ODBC application, thereby reducing resource consumption.

MyFaces

An Apache Software Foundation project that creates and maintains an open-source JavaServer
Faces implementation.

N

NonStop

The HP operating system environment, which consists of core and system services. The operating
system does not include any application program interfaces (APIs).

NSJSP

NonStop Servlet for Java Server Pages are platform-independent server-side programs that
programmatically extend the functionality of web-based applications by providing dynamic content
from a webserver to a client browser over the HTTP protocol.

P

PATHMON

The central controlling process for a NonStop TS/MP application.

Persistent Manager

Represents the session manager that creates and maintains HTTP sessions as requested by the
associated web application.

S

Scout for NonStop
Servers

Scout is a vital tool for anyone involved in NonStop server system management. Scout for NonStop
Servers enables you to view, research and download Software Product Revisions (SPRs) as well
as to request Site Update Tapes (SUTs) and Independent Product (IP) CDs for the systems. In

462 Glossary

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