ArcGIS Engine Developer Guide

GLOSSARY
SQL
STA
standalone application
state
stateful operation
stateless
stateless operation
stream
Structured Query Language
SXD
synchronization
target computer
thread
TNA
tool
type inheritance
type library
UI
UML
See Structured Query Language.
Single threaded apartment. An apartment that only has a single thread. User
interface code is usually placed in an STA. See also apartment, MTA, thread,
TNA.
An application that runs by itself, not within an ArcGIS application.
The current data contained by an object.
An operation that makes changes to an object or one of its associated objects—for
example, removing a layer from a map. See also stateless operation.
An object that stores no state data in between member calls.
An operation that does not make changes to an object—for example, drawing a
map. See also stateful operation.
A mode of data delivery in which objects provide data storage. Stream objects
can contain any type of data in any internal structure. See also persistence.
A syntax for defining and manipulating data from a relational database. Developed
by IBM in the 1970s, SQL has become an industry standard for query
languages in most relational database management systems.
Scene Document. A document saved by ArcScene that has the extension .sxd.
The process of automatically updating certain elements of a metadata file.
A computer to which an application is deployed.
A process flow through an application. An application can have many threads.
See also apartment, MTA, STA, TNA.
Thread neutral apartment. An apartment that has no threads permanently associated
with it; threads enter and leave the apartment as required. See also apartment,
MTA, STA, thread.
A command that requires interaction with the user interface before an action is
performed. For example, with the Zoom In tool, you must click or draw a box
over the geographic data or map before it is redrawn at a larger scale. Tools can be
added to any toolbar.
A kind of inheritance in which an interface may inherit from a parent interface.
A client may call the child interface as if it were the parent, as all the same members
are supported.
A collection of information about classes, interfaces, enumerations, and so on,
that is provided to a compiler for inclusion in a component. Type libraries are also
used to allow features, such as IntelliSense, to function correctly. Type libraries
usually have the extension .tlb.
User interface. The portion of a computer’s hardware and software that facilitates
human interaction. The UI includes items that can be displayed onscreen
and interacted with by using the keyboard, mouse, video, printer, and data capture.
Unified Modeling Language. A graphical language for object modeling. See also
CASE.
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