Eclipse modeling tools ocl

Unpack both these zips for every language group you need into your Eclipse directory before starting Eclipse. In particular, the feature overlay must actually write into the existing feature directories. These translations are based on UML2 1.

The NLS translation fragment packs should work with all subsequent 1. The feature overlays will need to be reissued for each subsequent release. This project uses Gerrit Code Review; please see contributing via Gerrit. Developer Resources. Follow and finish the wizard. Team Project Sets:. OCL Pivot Pivot-based model, parsers, editors, code generator, debugger.

OCL Releng build, documentation, features. The implicit target role name is the name of the target class. Prior to OCL 2. This was explicitly corrected in OCL 2. Eclipse OCL no longer converts the class name. In UML, the implicit name can generally be used, but it is better to provide the opposite role names and multiplicities explicitly. If two associations both have the same implicit opposite role name, both implicit opposites exist, but any attempt to use them will yield an ambiguous resolution error.

The ambiguity vcan be resolved by using the qualified navigation syntax; you suffix the ambiguous navigation with the required opposite property name in square brackets. In Ecore, similar problems exist and the same default inferences apply. The unnavigable opposites can be explicitly specified using EAnnotations. The foregoing has been revised to describe the functionality of the Pivot OCL implementation.

The easiest way to add an operation is to extend your metamodel directly by adding an EOperation to your Ecore metamodel, putting the operation in the EClass that is most convenient to use as the self context of the operation. Alternatively you can edit the generated Java code to provide a Java implementation of your new operation.

More details needed. If you are unable to modify your primary metamodels, you may use another metamodel, possibly a specially created metamodel in which you can place your additional operations in some arbitrary class.

When you invoke these operations, you will need to use a bogus instance of this class as the self context of the operation. A Complete OCL document allows you to add additional operations, properties and constraints to an existing metamodel. These additions are available for use within the Complete OCL document as if they were part of the existing metamodel although the metamodel is not actually modified.

The additions cannot therefore be used outside the Complete OCL document. You may therefore define an extended library that imports the standard, or a replacement standard library. In either case you may define additional operations, iterations and properties with a binding to a Java class that implements the appropriate derived LibraryFeature API. This compiled library is registered with the org. The default library is normally installed by invoking OCLstdlib.

Additional or replacement libraries may be compiled and registered in similar ways. AbstractOperation requires the most generic varargs arguments.

A variety of derived classes such as AbstractBinaryOperation support more restricted arguments. The built-in library operation in org. The custom library has no nsURI of its own so it extends the prevailing standard library. It declares an additional operation for the Real type. The operation is named "spacedOut", takes no arguments and returns a String. The operation name is bound to the the implementation at org.

You can reformulate your OCL invariants so that you provide a more user friendly error message when an invariant fails. For more information go to Eclipse OCL help:. If you are operating in a standalone environment, such as a JUnit test, an MWE script, or an Xtext generated compiler you must orchestrate the initialization manually. This error occurs when a validation or invocation or setting delegate attempts to activate an OCL delegate but cannot find the required OCL registration.

This error arises when the root object in a model is validated twice, since validation of the root object marks itself as already validated causing the second validation to report a circular validation.

As of EMF 2. These expressions may be evaluated either after genmodel has been used to convert your model to Java, or directly using the dynamic capabilities of EMF.