Umple Code Generator

Supported languages

Workflow

1. Read references/umple-modeling-syntax.md.
2. Write a valid Umple model for the user's domain.
3. Call the Umple Online API (see below).
4. Parse the generated code from the response.
5. On error, read the message, fix the code, retry (up to 3 times).
6. Split into per-class files and present to the user.
7. If helpful, read references/generated-api-patterns.md to explain what was generated.

API

Endpoint: POST https://cruise.umple.org/umpleonline/scripts/compiler.php Content-Type: application/x-www-form-urlencoded

Use whatever HTTP tool is available (WebFetch, curl, fetch, etc.).

Response parsing

Success: code appears after a <p>URL_SPLIT delimiter. Strip HTML tags and decode entities (< → <, > → >, & → &, " → "). Files separated by //%% NEW FILE ClassName BEGINS HERE %%.

Error: response contains <span class="umple-message-error">. Strip HTML tags to read the error.

Output

1. Show the Umple source in an umple code block.
2. Present generated code split into per-class files.
3. Save files: <name>/model.ump and <name>/<ClassName>.java (etc.).

Same model can generate multiple languages — only the language parameter changes.

Guardrails

• Always read the syntax reference before writing Umple code.
• Prefer a smaller valid model over guessing syntax.
• One association per class pair — never define the same relationship from both sides.