The underlying class hierarchy can be calculated from any instance created by following the steps below and using the resources attached to this message:

Library Prerequesites:
- Class Hierarchy Calculation Module is available in the library and loaded
- Instance Attributes have been defined to hold the results of the calculation
- Trigger is defined according to the needs

For the following example snipplet the following is assumed:
- The trigger for the calculation is the user, clicking on a button in the notebook of the instance
- The attributes "Class hierarchy (ID)" and "Class hierarchy (Name)" are available in the instance to store the return values of the procedure
- The PROCEDURE of the Calculation module is loaded during application startup

Steps:
1. Add 3 attributes to the root object of the library "__D-contruct__" (this makes sure that it is available for all classes)
a. Attribute name: "Class hierarchy (ID)" TYPE: STRING; this attribute is set after calculation with class ID tree of parent classes
b. Attribute name: "Class hierarchy (Name)" TYPE: STRING; this attribute is set after calculation with class name tree of parent classes
c. Attribute name: "Calculate class hierarchy" TYPE: PROGRAMCALL; this attribute shows the button in the notebook to trigger the calculation of the class hierarchy

2. Define the AdoScript to be run on PROGRAMMCALL: see attached file triggerClassHierarchyCalculation.asc: add the content of the file to the facets of the attribute

3. Add attributes to the AttrRep of classes


4. Add file using library file management function "class_hierarchy.bin"

5. Load file "class_hierarchy.bin" ON_EVENT "AppInitialized"


6. Test for the class, using the notebook button for calculation. Remove the INFOBOX commands to remove the UI interaction.

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Attachments:

20130717 - ADOxxORG - ClassHierarchy Calculation_PUBLIC.zip (2.8k)