Domain Model Example

Generator CLI

The Domain Model Example features a generator that you can run via cli.

• Ensure the complete project was properly built, otherwise run npm install once in the root of the Langium project. That is enough, since we use npm workspaces to manage all of our npm projects as one monorepo.
• Run npm run build (again in the root directly) to actually generate the JavaScript code from the TypeScript sources.
• Use node ./bin/cli from the domainmodel directory to run the cli. Follow the instructions or use node ./bin/cli generate <full-path-to-dmodel-file>, e.g.

cd examples/domainmodel
node ./bin/cli generate example/blog.dmodel

produces this result:

Java classes generated successfully: generated/blog

The generator produces a Java class for each Entity and setter-getter methods for each Feature.

You also can use domainmodel-cli as a replacement for node ./bin/cli, if you install the cli globally.

• Run npm install -g ./ from the domainmodel directory.
• Use domainmodel-cli to run the cli. Follow the instructions or use domainmodel-cli generate <full-path-to-dmodel-file>.

VSCode Extension

Please use the VSCode run configuration "Run Domainmodel Extension" to launch a new VSCode instance including the extension for this language. Afterwards, use the run configuration "Attach" to attach the debugger to the running language server.