Package org.eclipse.ocl.utilities

Abstract API for OCL AST utilities and extensions of the UML metamodel.

See: Description

Interface Summary

Interface	Description
ASTNode	A representation of the model object 'AST Node'.
CallingASTNode	A representation of the model object 'Calling AST Node'.
ExpressionInOCL<C,PM>	A representation of the model object 'Expression In OCL'.
OCLFactory	Interface for a factory of OCl Abstract Syntax elements.
PredefinedType<O>	A representation of the model object 'Predefined Type'.
TypedASTNode	A representation of the model object 'Typed AST Node'.
TypedElement<C>	A representation of the model object 'Typed Element'.
UMLReflection<PK,C,O,P,EL,PM,S,COA,SSA,CT>	An interface providing reflection service for the metaclasses that the OCL borrows from UML.
UtilitiesFactory	The Factory for the model.
UtilitiesPackage	The Package for the model.
UtilitiesPackage.Literals	Defines literals for the meta objects that represent each class, each feature of each class, each enum, and each data type
Visitable	A representation of the model object 'Visitable'.
Visitor<T,C,O,P,EL,PM,S,COA,SSA,CT>	Something which can visit an OCLExpression.

Class Summary

Class	Description
AbstractVisitor<T,C,O,P,EL,PM,S,COA,SSA,CT>	An abstract implementation of the Visitor API, in which subclasses need only selectively override handleXxx(...) methods for internal AST nodes and visitXxx(...) methods for leaf nodes.

Package org.eclipse.ocl.utilities Description

Abstract API for OCL AST utilities and extensions of the UML metamodel.

Package Specification

This package defines a number of utility interfaces that are mixed in to the AST model defined in the org.eclipse.ocl.expressions and org.eclipse.ocl.types packages, as well as UML metamodel extensions and related services. These utilities include:

• a Visitor pattern definition
• visitor accept protocol
• tracking from where in the source text an AST node was parsed
• an emulation of the UML TypedElement metaclass
• access to the name and operations of the types pre-defined by OCL

These concerns are orthogonal to the definition of the abstract syntax model and do not affect XMI serialization.

This package also defines the ExpressionInOCL metaclass that extends the UML OpaqueExpression metaclass to support embedding of OCL expressions in models.

Also of note is the UMLReflection interface that provides introspection and construction of the model concepts that OCL re-uses from the UML. Providers of OCL metamodel bindings (i.e., Environments) are required to implement this interface to manipulate metaclasses either from the metamodel that they are binding, or that they define themselves to implement these concepts.

See Also:

org.eclipse.ocl.expressions, org.eclipse.ocl.types