XMISerializer

struct XMISerializer

Overview

The XMI serialiser converts in-memory object graphs stored in Resources to XMI files. It handles:

• Metamodel (.ecore) files with full Ecore support

• Model instance (.xmi) files with arbitrary attributes

• Containment references (nested elements)

• Same-resource references (href attributes with XPath, e.g., href="#//@employees.0")

• Cross-resource references (href attributes with URI and fragment, e.g., href="department-b.xmi#/")

• Proper XML namespace declarations

Cross-Resource References

When a reference points to an object in another resource (represented as a ResourceProxy), the serializer generates an href with the target resource’s URI and fragment:

<mainDepartment href="department-b.xmi#/"/>

Usage Example

let serializer = XMISerializer()
try await serializer.serialize(resource, to: outputURL)