| h2(#OCLstdlib). The OCL Standard Library Language |
| |
| The OCL Standard Library Language is used to define the OCL Standard Library, for which *.oclstdlib is the default extension. |
| |
| The standard library can be replaced or extended. |
| |
| h3. Syntax |
| |
| h4(#OCLstdlib-Library). OCL Standard Library Document |
| |
| The Library syntax defines an OCL Standard Library document, for which *.oclstdlib is the default extension. |
| |
| !{width:60%}images/1400-library1.png(OCL Standard Library Document Syntax Part 1)! |
| |
| Zero or more library documents may be imported for use within the composite library whose name must be specified. |
| |
| !{width:60%}images/1400-library2.png(OCL Standard Library Document Syntax Part 2)! |
| |
| A namespace prefix and namespace URI may optionally be specified. |
| |
| !{width:60%}images/1400-library3.png(OCL Standard Library Document Syntax Part 3)! |
| |
| The body of the document comprises |
| * optional module declaration |
| * optional specification of the OCL Standard libraries |
| * optional import of referenced Ecore or UML or OCLinEcore resources |
| * "Precedences":#OCLstdlib-Precedence |
| * a hierarchy of "Packages":#OCLstdlib-Package |
| * a hierarchy of "Classifiers":#OCLstdlib-Classifier |
| * Annotations |
| |
| !{width:60%}images/1400-library.png(OCL Standard Library Document Library Import Syntax)! |
| |
| Zero or more external libraries may be imported so that their definitions are merged to form a composite library of basic and extended evaluation capability. |
| |
| The default library may be extended by specifying it as the first library import. |
| |
| bc.. |
| library 'http://www.eclipse.org/ocl/3.1.0/OCL.oclstdlib' |
| p. |
| |
| The namespace URI of the first library package defines the namespace URI of the composite library. The namespace URI of subsequent library imports may not conflict, but may be null. |
| |
| h4(#OCLstdlib-Precedence). Precedence |
| |
| The Precedence syntax defines the precedence and associativity of infix operators. |
| |
| !{width:60%}images/1400-precedence.png(OCL Standard Library Precedence Syntax)! |
| |
| Each entry in a list of precedences names a precedence level taht can then be used by an infix operator. Each level can be either left or right associative. |
| |
| Multiple lists of precedence levels can be merged from imported libraries provided the lists are interleaveable with conflict or ambiguity. |
| |
| h4(#OCLstdlib-Package). Package |
| |
| The Package syntax defines a nested hierarchy of packages and classifiers . |
| |
| !{width:60%}images/1400-package1.png(OCL Standard Library Package Syntax Part 1)! |
| |
| A Package has a name and optionally a namespace prefix and namespace URI. |
| |
| !{width:60%}images/1400-package2.png(OCL Standard Library Package Syntax Part 2)! |
| |
| The content of a Package may comprise "Packages":#OCLstdlib-Package, "Classifiers":#OCLstdlib-Classifier and Annotations. |
| |
| h4(#OCLstdlib-Classifier). Class and Classifier |
| |
| The Class and Classifier syntax define a type within a Package. |
| |
| !{width:60%}images/1400-classifier.png(OCL Standard Library Classifier Syntax)! |
| |
| !{width:60%}images/1400-class1.png(OCL Standard Library Class Syntax Part 1)! |
| |
| A Class has a name and optionally template parameters. A class may also name the metatype such as @PrimitiveType@ that the Class is an instance of. |
| |
| !{width:60%}images/1400-class2.png(OCL Standard Library Class Syntax Part 2)! |
| |
| A Class may extend one or more other Classes that may be specialized using the template parameters. |
| |
| !{width:60%}images/1400-class3.png(OCL Standard Library Class Syntax Part 3)! |
| |
| The content of a Class may comprise "Operations":#OCLstdlib-Operation, "Properties":#OCLstdlib-Property, "Invariants":#OCLstdlib-Inv and Annotations. |
| |
| h4(#OCLstdlib-Inv). Inv |
| |
| The Inv syntax defines an invariant constraint. |
| |
| !{width:60%}images/1400-inv.png(OCL Standard Library Inv Syntax)! |
| |
| h4(#OCLstdlib-Operation). Operation |
| |
| The general Operation syntax defines a conventional Operation or Iteration. |
| |
| !{width:60%}images/1400-operation.png(OCL Standard Library Operation Syntax)! |
| |
| h4(#OCLstdlib-LibOperation). LibOperation |
| |
| The LibOperation syntax defines a conventional Operation. |
| |
| !{width:60%}images/1400-operation1.png(OCL Standard Library LibOperation Syntax Part 1)! |
| |
| An Operation may be static and has a name and optionally template parameters. |
| |
| !{width:60%}images/1400-operation2.png(OCL Standard Library LibOperation Syntax Part 2)! |
| |
| An Operation has zero of more "Parameters":#OCLstdlib-Parameter. |
| |
| !{width:60%}images/1400-operation3.png(OCL Standard Library LibOperation Syntax Part 3)! |
| |
| An Operation has a return Type. An infix operation may specify a precedence level. An operation may specify the name of a Java class implementing the org.eclipse.ocl.examples.library.LibraryOperation interface. This class is used when evaluating the operation. |
| |
| !{width:60%}images/1400-operation4.png(OCL Standard Library LibOperation Syntax Part 4)! |
| |
| The content of an Operation may comprise "Preconditions":#OCLstdlib-Pre, "Postconditions":#OCLstdlib-Post and Annotations. |
| |
| The @static@ qualifier supports declaration of static library operations such as @allInstances()@ that are invoked on types rather than objects. |
| |
| h4(#OCLstdlib-LibIteration). LibIteration |
| |
| The LibIteration syntax defines an Iteration. |
| |
| !{width:60%}images/1400-iteration1.png(OCL Standard Library LibIteration Syntax Part 1)! |
| |
| An Iteration has a name and optionally template parameters. |
| |
| !{width:60%}images/1400-iteration2.png(OCL Standard Library LibIteration Syntax Part 2)! |
| |
| An Iteration has one or more comma-separated "Iterators":#OCLstdlib-Iterator. |
| |
| !{width:60%}images/1400-iteration3.png(OCL Standard Library LibIteration Syntax Part 3)! |
| |
| Optionally following a semicolon, an Iteration has one or more comma-separated "Accumulators":#OCLstdlib-Accumulator. |
| |
| !{width:60%}images/1400-iteration4.png(OCL Standard Library LibIteration Syntax Part 4)! |
| |
| Optionally following a bar, an Iteration has one or more comma-separated "Parameters":#OCLstdlib-Parameter. |
| |
| !{width:60%}images/1400-iteration5.png(OCL Standard Library LibIteration Syntax Part 5)! |
| |
| An Iteration has a return Type. An Iteration may specify the name of a Java class implementing the org.eclipse.ocl.examples.library.LibraryIteration interface. This class is used when evaluating the iteration. |
| |
| !{width:60%}images/1400-iteration6.png(OCL Standard Library LibIteration Syntax Part 6)! |
| |
| The content of an Iteration may comprise "Preconditions":#OCLstdlib-Pre, "Postconditions":#OCLstdlib-Post and Annotations. |
| |
| h4(#OCLstdlib-Iterator). Iterator |
| |
| The Iterator syntax defines an Iterator. |
| |
| !{width:60%}images/1400-iterator.png(OCL Standard Library Iterator Syntax)! |
| |
| h4(#OCLstdlib-Accumulator). Accumulator |
| |
| The Accumulator syntax defines an Accumulator. |
| |
| !{width:60%}images/1400-accumulator.png(OCL Standard Library Accumulator Syntax)! |
| |
| h4(#OCLstdlib-Parameter). Parameter |
| |
| The Parameter syntax defines a Parameter. |
| |
| !{width:60%}images/1400-parameter.png(OCL Standard Library Parameter Syntax)! |
| |
| h4(#OCLstdlib-Pre). Pre |
| |
| The Pre syntax defines a precondition constraint. |
| |
| !{width:60%}images/1400-pre.png(OCL Standard Library Pre Syntax)! |
| |
| h4(#OCLstdlib-Post). Post |
| |
| The Post syntax defines a postcondition constraint. |
| |
| !{width:60%}images/1400-post.png(OCL Standard Library Post Syntax)! |
| |
| h4(#OCLstdlib-Property). LibProperty |
| |
| The LibProperty syntax defines an Property. |
| |
| !{width:60%}images/1400-property1.png(OCL Standard Library LibProperty Syntax Part 1)! |
| |
| An Property may be static and has a name and a Type. |
| |
| !{width:60%}images/1400-property2.png(OCL Standard Library LibProperty Syntax Part 2)! |
| |
| A Property may specify the name of a Java class implementing the org.eclipse.ocl.examples.library.LibraryProperty interface. This class is used when evaluating the iteration. |
| |
| The content of a Property may comprise Annotations. |
| |
| h4(#OCLstdlib-Specification). Specification |
| |
| The Specification syntax integrates an OCL Expression as the specification of a constraint. |
| |
| !{width:60%}images/1400-specification.png(OCL Standard Library Specification Syntax)! |
| |
