CORBA 2.6.1 Glossary

overloading
In C++, the redefinition of a language element to provide for different behavior depending on
context. For example, the addition operator (+) could be overloaded to support concatenation of
text strings. In Java, using one identifier to refer to multiple items in the same scope. You can
overload methods but not variables or operators.
overriding
Providing a different implementation of a method in a subclass of the class that originally defined
the method. For example, if the base class defines a method called report, which produces a report
in a specific format, a subclass can override (redefine) that method so a report request to an object
of the subclass will produce a report in a different format.
package
A group of related Java classes. Also, a Java keyword that defines the package that a class belongs
to.
parallelism
A means of improving performance, and potentially fault tolerance, by allowing multiple
processing tasks to proceed simultaneously. Threads and server pools are two mechanisms for
achieving parallelism.
Parallel Library TCP/IP
An HP networking product that provides increased performance, scalability, and fault-tolerance by
creating parallel TCP/IP protocol stacks implemented as a shared runtime library in the NonStop
Kernel operating system. A multiprocessor NonStop system using Parallel Library TCP/IP can be
configured to appear as a single IP host to the outside world.
parent class
A class from which some other class (a subclass) is derived, so that the subclass inherits
characteristics from the parent class and also defines characteristics of its own.
partitioning
The distribution of data across files and storage media, the distribution of application logic across
processes, or the distribution of objects among server processes.
PATHCOM
The Command Line Interface (CLI) utility used to define and manage TS/MP server pools and
other components of NonStop TS/MP.
PATHCOM configuration file
A file that defines processes and operational parameters for a PATHMON environment (the set of
processes under control of a single PATHMON process).
PATHMON
The NonStop TS/MP process that starts, restarts, and monitors server processes, establishes links
between requesters and servers, and balances loads. The set of processes managed by an instance