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EFX Toolkit 2.0.0-alpha.4 Release Notes

The EFX Toolkit for Java developers is a library that enables the transpilation of EFX expressions and templates to different target languages. It also includes an implementation of an EFX-to-XPath transpiler.


In this release

This release fixes an a bug that caused variables and parameters to be in the wrong order in the generated XSL.

A "qualifier" parameter was added in various methods, to allow the use of the corresponding new feature in the eForms Core Library 1.4.0.

The dependency on ANTLR was updated to version 4.13.1.

EFX-1 Support

Although this is a pre-release version of the EFX Toolkit, it provides production-level support for EFX-1 transpilation. EFX-1 is the current version of EFX released with SDK 1.

NOTE: Transpilation of EFX-1 to XPath and XSL in this version of the EFX Toolkit is better than what is provided by EFX Toolkit 1.3.0.

EFX-2 Support

The new version of EFX is still under development and will be released with SDK 2.0.0. For more information of EFX-2 see the release notes of the eForms SDK 2.0.0-alpha.1.

Breaking changes

For users of the Toolkit that have implemented custom transpilers, this release contains a few breaking changes from 1.3.0. More specifically:

  • Some additional methods have been added to the SymbolResolver, ScriptGenerator and MarkupGenerator API. As a guide for your implementations please look a the implementations included in the EFX Toolkit for use by the EFX-to-XPath transpilation.
  • Some deprecated methods were removed.
  • An extensive refactoring in the type management system has rearranged the package structure. As a result some import statements in your code will need to be updated.

Users of the Toolkit that only use the included EFX-to-XPath transpiler will not be affected by the above changes.

Future development

Further alpha and beta releases of SDK 2 and EFX Toolkit 2 will be issued. While in "alpha" development stage, further breaking changes may be introduced.


You can download the latest EFX Toolkit from Maven Central.
Maven Central

Documentation for the EFX Toolkit is available at: https://docs.ted.europa.eu/eforms/latest/efx-toolkit


This version of the EFX Toolkit has a compile-time dependency on the following versions of eForms SDK versions and uses the EFX grammar that each version provides:

  • eForms SDK 1.x.x
  • eForms SDK 2.0.0-alpha.1

It also depends on the eForms Core Java library version 1.4.0.