The SEDRIS Data Representation Model
APPENDIX A - Classes
Property Set Table

Class Name: Property Set Table

Superclass - <SEDRIS Abstract Base>

Subclasses

This DRM class is concrete and has no subclasses.

Definition

An instance of this DRM class is conceptually an ordered collection of <Property Set> instances, where the ordering is required to permit the contents of the <Property Set Table> instance to be referenced by other objects.

A <Property Set> instance within a <Property Set Table> instance is referenced by its ordinal position in the collection by means of <Property Set Index> instances, as specified in the definition of <Property Set Index>.

Primary Page in DRM Diagram:

Secondary Pages in DRM Diagram:

This class appears on only one page of the DRM class diagram.

Example

  1. A <Property Set Table> instance specifies <Property Set> instances for normal, OTW viewing.

  2. A <Property Set Table> instance specifies <Property Set> instances for viewing through night vision goggles.

  3. A <Property Set Table> instance specifies <Property Set> instances for OTW viewing using an enhanced set of colours and textures.

  4. A <Property Set Table> instance contains <Property Set> instances that all contain a <Colour> instance and two <Image Mapping Function> instances. This <Property Set Table> instance has regular set to SE_TRUE.

FAQs

No FAQs supplied.

Constraints

Composed of (two-way)

Composed of (two-way metadata)

Component of (two-way)

Inherited Field Elements

This class has no inherited field elements.

Field Elements

SE_String table_usage; 1
SE_Boolean regular; 2

Notes

Fields Notes

table_usage

The table_usage field specifies the use for which the <Property Set Table> instance is provided.

regular

If the value of the regular field is SE_TRUE, all <Property Set> components of the <Property Set Table> instance contain the same number of DRM objects, and these DRM objects are instances of the same DRM classes. Otherwise <Property Set> instances in the table may contain very different sets of DRM objects.


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Last updated: July 26, 2006 Copyright © 2006 SEDRIS