NonStop Server for Java 4.2 Programmer's Reference

The operation demanded by an operator or program; a demand for action by, or information from,
a subsystem. A command is typically conveyed as an interprocess message from a program to a
subsystem.
Common Gateway Interface (CGI)
The World Wide Web standard interface for servers, often written in C. The NonStop Server for
Java 4 supports CGI-like use of Java using servlets with iTP Secure WebServer. See also Pathway
CGI.
Common Object Request Broker Architecture (CORBA).
The OMG standard that allows objects that adhere to it to interact over a network regardless of the
types of machines or operating systems on which they reside. Java interoperates with this standard
using Java IDL and JTS.
concurrency
A condition in which two or more transactions act on the same record in a database at the same
time. To process a transaction, a program must assume that its input from the database is
consistent, regardless of any concurrent changes being made to the database. TMF manages
concurrent transactions through concurrency control.
concurrency control
Protection of a database record from concurrent access by more than one process. TMF imposes
this control by dynamically locking and unlocking affected records to ensure that only one
transaction at a time accesses those records.
conformant
A Java implementation is conformant if it passes all the tests in the Java 2 SDK, Standard Edition.
CORBA
See Common Object Request Broker Architecture (CORBA).
Core Packages
The required set of APIs in a Java platform edition which must be supported in any and all
compatible implementations.
CyberWeb
See iTP Secure WebServer.
D
Data Control Language (DCL)
The set of data control statements within the SQL/MP language.
Data Definition Language (DDL)
A language that defines all attributes and properties of a database, especially record layouts, field
definitions, key fields, field locations, file locations, and storage strategy.
DCL