Module versions 

Multi-version DDEX support and conversion

This module provides comprehensive support for multiple DDEX ERN versions including 3.8.2, 4.2, and 4.3 with automatic conversion capabilities.

Supported Versions

• ERN 3.8.2: Legacy version with different namespaces and element structures
• ERN 4.2: Intermediate version with some modern features
• ERN 4.3: Current recommended version with full feature set

Version Conversion

The system supports both upgrade and downgrade paths:

• Upgrade: 3.8.2 → 4.2 → 4.3 (with feature enhancement)
• Downgrade: 4.3 → 4.2 → 3.8.2 (with compatibility warnings)

Examples

use ddex_builder::versions::{VersionConverter, DdexVersion};

let converter = VersionConverter::new();
let result = converter.convert_version(ddex_xml, DdexVersion::Ern382, DdexVersion::Ern43)?;

Modules

builders

ERN 4.3 specific element builders

ern42

ERN 4.2 version support

ern43

ERN 4.3 version support

ern382

ERN 3.8.2 version support

utils

Utility functions for version handling

validation

ERN 4.3 validation functions

Structs

CompatibilityMatrix

Version compatibility matrix

ConversionError

Conversion error (non-fatal)

ConversionMetadata

Conversion metadata

ConversionOptions

Options for version conversion

ConversionPath

Single conversion path between versions

ConversionReport

Detailed conversion report

ConversionResult

Version conversion result with detailed reporting

ConversionStrategy

Conversion strategy recommendation

ConversionWarning

Conversion warning

ConverterReport

Report of conversion process between DDEX versions

ConverterWarning

Warning generated during conversion

DetectionClue

Clue used for version detection

ElementConversion

Individual element conversion record

FeatureSupport

Feature support across versions

VersionConverter

Handles conversion between different DDEX versions

VersionDetection

Version detection result

VersionManager

Main version management interface

VersionSpec

Version-specific DDEX metadata and constraints

Enums

ClueType

Type of version detection clue

ConversionDifficulty

Difficulty level of conversion

ConversionType

Field transformation between DDEX versions

ConversionWarningType

Type of conversion warning

ConverterResult

Result of version conversion operation

ImpactLevel

Impact level of warnings/changes

RiskLevel

Risk level of conversion strategy

SupportLevel

Level of feature support

ValidationLevel

Validation level for converted content

Functions

get_namespace_mappings_42

Get ERN 4.2 namespace mappings

get_namespace_mappings_43

Get ERN 4.3 namespace mappings

get_namespace_mappings_382

Get ERN 3.8.2 namespace mappings

get_version_spec

Get ERN 4.3 version specification

get_xml_template_42

Get ERN 4.2 specific XML template

get_xml_template_43

Get ERN 4.3 specific XML template

get_xml_template_382

Get ERN 3.8.2 specific XML template