Primitive Types Mapping

Primimive Types

In UML a modeller can make use of the existing Primitive Types, typically included in the PrimitiveTypes.xmi model. These standard Primitive Types are mapped to types in C# in the TypeExtensions class. The following mapping is included with uml4net:

UML Primitive Type	C# Type
Boolean	bool
Integer	int
Real	double
String	string
UnlimitedNatural	string

By calling the TypeExtensions.QueryCSharpTypeName method, the above mapping is used.

In case a UML model contains more Primitive Types, the mapping can be updated to support this. Let's state that a UML model contains a Primitive Type called ISO8601DateTime that needs to be mapped to the equivalent in C# DateTime.

This can be achieved by called the static method PropertyExtensions.AddOrOverwriteCSharpTypeMappings method before any code generation is performed

Extensions.PropertyExtensions.AddOrOverwriteCSharpTypeMappings(("ISO8601DateTime", "DateTime"));

In case an existing mapping needs to be overwritten that can be achieved with the same method. The following example demonstrates how the existing default mapping Real -> double is overwritten to become Real -> float.

Extensions.PropertyExtensions.AddOrOverwriteCSharpTypeMappings(("Real", "float"));