Clients of List ADTs don’t usually directly access the wrapped Lists (but can for testing with ADT⊙get which BREAKS ENCAPSULATION)

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Tutorial
[TECHNICAL SLIDE TRAIL] The Webel libraries for Wolfram Mathematica: With SysMLv1 models.
Section
SECTION: The Webel Abstract Data Type (ADT) stateless pseudo-classes with inheritance (with SysMLv1 models)
UML keywords
Generalization
Property::redefinedProperty
Mathematica keywords
XMLElement
Webel Mathematica keywords
ADT`
Webel ADT
«adt:pseudo»
@EX$Row{}
EX$RowList
EX$Row
@EX$Val{}
EX$Val
@EX$Val
ADT$List
{}
$$
ADT⊙get
Keywords
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For reference, some associated Policy Notes (you don't need to visit these links yet):
Mathematica: Webel ADT pseudo classes: CONVENTION: PROVISIONAL: The infix operator for calling ADT-Methods on ADT "objects" is the CircleDot (⊙ in Notebooks). ISSUE: \[CircleDot] is NOT GOOD FOR USE IN IDEs!
Mathematica: Webel ADT pseudo classes: The ADT⊙get method may be used to access the '$$' wrapped primary. This is intended for development and testing purposes only (not for regular use by clients) since it BREAKS ENCAPSULATION!
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Webel ADT SysMLv1 Stereotypes
Notes
[CONVENTION, NAMING, POLICY]{PROPOSED} Mathematica: Webel ADT pseudo classes: CONVENTION: PROVISIONAL: The infix operator for calling ADT-Methods on ADT "objects" is the CircleDot (⊙ in Notebooks). ISSUE: \[CircleDot] is NOT GOOD FOR USE IN IDEs!
[POLICY]{STRICT} Mathematica: Webel ADT pseudo classes: The ADT⊙get method may be used to access the '$$' wrapped primary. This is intended for development and testing purposes only (not for regular use by clients) since it BREAKS ENCAPSULATION!
Snippets (quotes/extracts)
Visit also
Mathematica: POLICY NOTES for the Webel Abstract Data Type (ADT) pseudo classes with inheritance for the Wolfram Language
Dr Darren of Webel IT Australia makes the case for better object-orientation for Mathematica using pseudo class ADTs without losing the super-functional power of the Wolfram Language
Visit also (backlinks)
Related slides (includes other tutorials)
Introduction to Webel Abstract Data Types (ADTs) with SysMLv1 models
Webel Abstract Data Types (ADTs) vs the user-contributed MTools for OO
Webel ADTs include inheritance (and aren’t actually formal ADTs)
Webel ADT hierarchy views as tree, graph, and SysML
Webel ADT`package: Some ADT pseudo class utility functions in a ::usage help viewer. Diagnostic, help, and development functions.
Classes in the ADT` package: Extendable ADT pseudo classes have corresponding "definer functions"
Simple Webel ADT in the development view dV[adt] and class/methods help hC[adt]
Creating new ADTs that extend other classes using a definer function (and adt$addSuper)
Webel «adt:pseudo» elements in the SysMLv1 ADT model (1)
Chained wrapped ADT pseudos as a SysMLv1 Internal Block Diagram (IBD)
Related slides (backlinks, includes other tutorials)
Webel ADT SysMLv1 Stereotypes
adt$graphHierarchy example: The EX` package for structured data
ADT finder functions and “methods” adt$findUp, adt$findUpArg, ADT⊙fM
ADT help functions and methods: adt$treeHierarchy (adt$tH), adt$hC, ADT⊙hC: Example: XL$Cell
ADT`: helpADT[class]: help on methods registered with HelpO`: Example: XL$Cell