NonStop Server for Java 7.0 Programmer's Reference

Old Generation (or
Tenured
Generation)
In generational garbage collection, old or tenure generation is one of the generation in the Java
Heap. The objects which are survived for threshold times (in scavenge or young generation) is
promoted to old generation.
OLTP See online transaction processing (OLTP).
OMG See Object Management Group (OMG).
Online Transaction
Processing (OLTP)
A method of processing transactions in which entered transactions are immediately applied to
the database. The information in the databases is always current with the state of company and
is readily available to all users through online screens and printed reports. The transactions are
processed while the requestor waits, as opposed to queued or batched transactions, which are
processed at a later time. Online transaction processing can be used for many different kinds of
business tasks, such as order processing, inventory control, accounting functions, and banking
operations.
Open Database
Connectivity
(ODBC)
The standard Microsoft product for accessing databases.
Open System
Services (OSS)
An environment available for interactive and programmatic use with the NonStop operating
system. Processes that run in the OSS environment use the OSS API. Interactive users of the OSS
environment use the OSS shell for their command interpreter. Compare to Guardian.
OSS See Open System Services (OSS).
OTS See Object Transaction Service (OTS).
P
Package A collection of related classes; for example, JDBC.
Parallel GC Parallel Garbage Collector, Stop-the-world GC where the GC runs in parallel using more
than one thread.
Pathsend API The application program interface to a Pathway system that enables a Pathsend process to
communicate with a server process.
Pathsend process A client (requestor) process that uses the Pathsend interface to communicate with a server process.
A Pathsend process can be either a standard requestor, which initiates application requests, or
a nested server, which is configured as a server class but acts as a requestor by making requests
to other servers. Also called a Pathsend requestor.
Pathway A group of software tools for developing and monitoring OLTP programs that use the client /
server model. Servers are grouped in server classes to perform the requested processing. On
NonStop systems, this group of tools is packaged as two separate products: TS/MP and
Pathway/TS.
Pathway CGI An extension to iTP Secure WebServer that provides CGI -like access to Pathway server classes.
Extended in the NonStop Server for Java so that Java servlets can be invoked from a
ServletServerClass, a special Pathway CGI server.
Pathway/TS An HP product that provides tools for developing and interpreting screen programs to support
OLTP programs in the Guardian environment on NonStop servers. Pathway/TS screen programs
communicate with terminals and intelligent devices. Pathway/TS requires the services of the
TS/MP product.
Persistence A property of a programming language where created objects and variables continue to
exist and retain their values between runs of the program.
1.
2. The capability of continuing in existence, such as a program running as a process.
Portability The ability to transfer programs from one platform to another without reprogramming. A
characteristic of open systems. Portability implies use of standard programming languages such
as C.
Portable Operating
System Interface X
(POSIX)
A family of interrelated interface standards defined by ANSI and IEEE. Each POSIX interface is
separately defined in a numbered ANSI/IEEE standard or draft standard. The standards deal
with issues of portability, interoperability, and uniformity of user interfaces.
POSIX See Portable Operating System Interface X (POSIX).
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