Index Mapper

This part is topped up on features used by subsequent tools. Main purpose of this is about resolving Associations, easing the access between linked elements for later usage. For example, it gives easy access to all the attributes of a class without any additional iteration as it is really helpful for UML and Python Class generation.

In the current status as of 09/2025 we consider 21/51 ASSOCIATIONS in ilisMeta16 as helpful candidates for indexing.

MetaElements in general

Construct	ili Kind	Mandatory v1	Implemented
ModelData.MetaAttributes	ASSOCIATION	✅	✅ Index().metaelement_metaattributes
ModelData.Inheritance	ASSOCIATION	✅	`0..1 (not relevant)

Models

Construct	ili Kind	Mandatory v1	Implemented
ModelData.PackageElements	ASSOCIATION	✅	0..1 (not relevant)
ModelData.Import	ASSOCIATION	❌	✅ Index().imported_p Index().importing_p
ModelData.DomainConstraint	ASSOCIATION	❌	❌ no usecase in tested models

Classes

Construct	ili Kind	Mandatory v1	Implemented
ModelData.ClassConstraint	ASSOCIATION	✅	❌ no usecase in tested models
ModelData.LocalType	ASSOCIATION	❌	0..1 (not relevant)
ModelData.AttrOrParamType	ASSOCIATION	✅	1 (not relevant)
ModelData.ClassAttr	ASSOCIATION	✅	✅ Index().class_class_attribute
ModelData.ClassParam	ASSOCIATION	✅	✅ Index().class_class_parameter

Types related to other types

Construct	ili Kind	Mandatory v1	Implemented
ModelData.BaseType	ASSOCIATION	✅	1 (not relevant)
ModelData.TypeRestriction	ASSOCIATION	❌	❌ no usecase in tested models

Bag type

No Associations in this group.

References and associations

Construct	ili Kind	Mandatory v1	Implemented
ModelData.BaseClass	ASSOCIATION	✅	✅ Index().base_class Index().class_related_type
ModelData.ClassRestriction	ASSOCIATION	❌	❌
ModelData.AssocRole	ASSOCIATION	✅	1 (not relevant)
ModelData.ExplicitAssocAcc	ASSOCIATION	❌	❌
ModelData.AssocAccOrigin	ASSOCIATION	❌	❌
ModelData.AssocAccTarget	ASSOCIATION	❌	❌
ModelData.AssocAcc	ASSOCIATION	✅	❌ (pending clarification)

Information for easy transfer

Construct	ili Kind	Mandatory v1	Implemented
ModelData.TransferElement	ASSOCIATION	❌	✅ Index().transfer_element Index().transfer_class
ModelData.Ili1TransferElement	ASSOCIATION	❌	(not relevant)

DataUnits

Construct	ili Kind	Mandatory v1	Implemented
ModelData.Dependency	ASSOCIATION	❌	✅ Index().dependency_depends_on Index().dependency_used_by
ModelData.AllowedInBasket	ASSOCIATION	❌	✅ Index().allowed_in_basket_class_in_basket Index().allowed_in_basket_of_data_unit

Generics and Contexts (INTERLIS 2.4 only)

Construct	ili Kind	Mandatory v1	Implemented
ModelData.GenericDef	ASSOCIATION	❌	❌
ModelData.ConcreteForGeneric	ASSOCIATION	❌	❌

Units

No Associations in this group.

MetaObjects

Construct	ili Kind	Mandatory v1	Implemented
ModelData.MetaDataUnit	ASSOCIATION	❌	1 (not relevant)
ModelData.MetaBasketMembers	ASSOCIATION	❌	<#> (not relevant)
ModelData.MetaObjectClass	ASSOCIATION	❌	1 (not relevant)

Base types

Construct	ili Kind	Mandatory v1	Implemented
ModelData.NumUnit	ASSOCIATION	✅	1 (not relevant)
ModelData.AxisSpec	ASSOCIATION	✅	✅ Index().coord_type Index().axis
ModelData.NumsRefSys	ASSOCIATION	✅	0..1 (not relevant)
ModelData.StructOfFormat	ASSOCIATION	✅	1 (not relevant)

OID Definition

Construct	ili Kind	Mandatory v1	Implemented
ModelData.ObjectOID	ASSOCIATION	✅	0..1 (not relevant)
ModelData.BasketOID	ASSOCIATION	✅	0..1 (not relevant)

Functions

Construct	ili Kind	Mandatory v1	Implemented
ModelData.LocalFType	ASSOCIATION	❌	0..1 (not relevant)
ModelData.ResultType	ASSOCIATION	❌	1 (not relevant)
ModelData.FormalArgument	ASSOCIATION	❌	<#> (not relevant)
ModelData.ArgumentType	ASSOCIATION	❌	0..1 (not relevant)

Class and attribute reference types

Construct	ili Kind	Mandatory v1	Implemented
ModelData.ARefOf	ASSOCIATION	❌	0..1 (not relevant)
ModelData.ARefRestriction	ASSOCIATION	❌	❌

Enumerations

Construct	ili Kind	Mandatory v1	Implemented
ModelData.TopNode	ASSOCIATION	✅	1 (not relevant)
ModelData.SubNode	ASSOCIATION	✅	<#> (not relevant)
ModelData.TreeValueTypeOf	ASSOCIATION	✅	1 (not relevant)

Line types

Construct	ili Kind	Mandatory v1	Implemented
ModelData.LineFormStructure	ASSOCIATION	✅	1 (not relevant)
ModelData.LinesForm	ASSOCIATION	✅	✅ Index().line_form Index().line_type
ModelData.LineCoord	ASSOCIATION	✅	0..1 (not relevant)
ModelData.LineAttr	ASSOCIATION	❌	0..1 (not relevant)

Views

Construct	ili Kind	Mandatory v1	Implemented
ModelData.BaseViewDef	ASSOCIATION	✅	<#> (not relevant)
ModelData.BaseViewRef	ASSOCIATION	✅	1 (not relevant)
ModelData.DerivedAssoc	ASSOCIATION	✅	0..1 (not relevant)

Expressions, factors

No Associations in this group.

Constraints

Construct	ili Kind	Mandatory v1	Implemented
ModelData.ExistenceDef	ASSOCIATION	❌	<#> (not relevant)

Graphic

Construct	ili Kind	Mandatory v1	Implemented
ModelData.GraphicBase	ASSOCIATION	❌	0..1 (not relevant)
ModelData.GraphicRule	ASSOCIATION	❌	<#> (not relevant)
ModelData.SignClass	ASSOCIATION	❌	0..1 (not relevant)

Translation

No Associations in this group.