nodemda-ocl-to-js v0.1.1

OCL Compiler to Javascript for NodeMDA

Introduction

This project is a Node package that implements OCL Compiler generating code into JavaScript. OCL acronym stands for Object Constraint Language which is a query language used to impose constraints on UML model elements. The purpose of this package is to generate code into JavasScript to ensure that the constraints, which were modeled in a UML diagram, are fulfilled at runtime.

This package is not meant for a stand-alone use because it is tightly binded to the NodeMDA code-generation engine developed by Joel Kozikowski.

Installation

First you need to install NodeMDA code-generation engine. The process is well-described at NodeMDA NPM page.

Command line

npm install -g nodemda-ocl-to-js

Usage

At first, you need to setup a project as it is again described at NodeMDA NPM page.

Then create some files with ocl extension inside the project directory. You can structure your OCL files into subdirectories as you wish, the OCL compiler will find them.

Then run command:

nodemda gen --platform ocl-to-js

Please note that the current release is in pre-alpha version. The OCL compiler does not follow OCL standard in all details yet.

Supported OCL language features

• Context and Package declarations
• Navigation statements around a UML model
• Supported OCL constraints: inv, pre, post
• Most OCL operators
• Most functions for primitive types
• Most functions for collection types

The JS libraries this package is using

• PegJS parser generator
• Handlebars templating engine
• JS code beautifier
• Winston logger