org.eclipse.uml2.uml
Interface Extension

All Superinterfaces:
Association, Classifier, Element, EModelElement, EObject, NamedElement, Namespace, Notifier, PackageableElement, ParameterableElement, RedefinableElement, Relationship, TemplateableElement, Type

public interface Extension
extends Association

A representation of the model object 'Extension'. An extension is used to indicate that the properties of a metaclass are extended through a stereotype, and gives the ability to flexibly add (and later remove) stereotypes to classes.

The following features are supported:

See Also:
UMLPackage.getExtension()

Field Summary
static String METACLASS_ROLE_PREFIX
          The prefix for metaclass role names.
static String STEREOTYPE_ROLE_PREFIX
          The prefix for stereotype role names.
 
Fields inherited from interface org.eclipse.uml2.uml.NamedElement
SEPARATOR
 
Method Summary
 Class getMetaclass()
          Returns the value of the 'Metaclass' reference.
 Stereotype getStereotype()
           Retrieves the stereotype that extends a metaclass through this extension
 Property getStereotypeEnd()
           Retrieves the extension end that is typed by a stereotype (as opposed to a metaclass)
 boolean isRequired()
          Returns the value of the 'Is Required' attribute.
 Property metaclassEnd()
           The query metaclassEnd() returns the Property that is typed by a metaclass (as opposed to a stereotype).
 boolean validateIsBinary(DiagnosticChain diagnostics, Map context)
           An Extension is binary, i.e., it has only two memberEnds.
 boolean validateNonOwnedEnd(DiagnosticChain diagnostics, Map context)
           The non-owned end of an Extension is typed by a Class.
 
Methods inherited from interface org.eclipse.uml2.uml.Association
createNavigableOwnedEnd, createNavigableOwnedEnd, createOwnedEnd, createOwnedEnd, getEndType, getEndType, getEndTypes, getMemberEnd, getMemberEnd, getMemberEnds, getNavigableOwnedEnd, getNavigableOwnedEnd, getNavigableOwnedEnds, getOwnedEnd, getOwnedEnd, getOwnedEnds, isBinary, isDerived, setIsDerived, validateAssociationEnds, validateBinaryAssociations, validateSpecializedEndNumber, validateSpecializedEndTypes
 
Methods inherited from interface org.eclipse.uml2.uml.Classifier
allFeatures, allParents, conformsTo, createCollaborationUse, createGeneralization, createOwnedUseCase, createRepresentation, createSubstitution, getAllAttributes, getAllOperations, getAllUsedInterfaces, getAttribute, getAttribute, getAttributes, getCollaborationUse, getCollaborationUse, getCollaborationUses, getFeature, getFeature, getFeatures, getGeneral, getGeneral, getGeneralization, getGeneralization, getGeneralizations, getGenerals, getInheritedMember, getInheritedMember, getInheritedMembers, getOperation, getOperation, getOperations, getOwnedUseCase, getOwnedUseCase, getOwnedUseCases, getPowertypeExtent, getPowertypeExtent, getPowertypeExtents, getRedefinedClassifier, getRedefinedClassifier, getRedefinedClassifiers, getRepresentation, getSubstitution, getSubstitution, getSubstitutions, getUseCase, getUseCase, getUseCases, getUsedInterfaces, hasVisibilityOf, inherit, inheritableMembers, isAbstract, maySpecializeType, parents, setIsAbstract, setRepresentation, validateGeneralizationHierarchies, validateMapsToGeneralizationSet, validateNoCyclesInGeneralization, validateSpecializeType
 
Methods inherited from interface org.eclipse.uml2.uml.Namespace
createElementImport, createElementImport, createOwnedRule, createOwnedRule, createPackageImport, createPackageImport, excludeCollisions, getElementImport, getElementImport, getElementImports, getImportedElements, getImportedMember, getImportedMember, getImportedMembers, getImportedPackages, getMember, getMember, getMembers, getNamesOfMember, getOwnedMember, getOwnedMember, getOwnedMembers, getOwnedRule, getOwnedRule, getOwnedRules, getPackageImport, getPackageImport, getPackageImports, importMembers, membersAreDistinguishable, validateMembersDistinguishable
 
Methods inherited from interface org.eclipse.uml2.uml.NamedElement
allNamespaces, allOwningPackages, createDependency, createNameExpression, getClientDependencies, getClientDependency, getClientDependency, getLabel, getLabel, getName, getNameExpression, getNamespace, getQualifiedName, getVisibility, isDistinguishableFrom, isSetName, isSetVisibility, separator, setName, setNameExpression, setVisibility, unsetName, unsetVisibility, validateHasNoQualifiedName, validateHasQualifiedName, validateVisibilityNeedsOwnership
 
Methods inherited from interface org.eclipse.uml2.uml.Element
addKeyword, allOwnedElements, applyStereotype, createEAnnotation, createOwnedComment, destroy, getApplicableStereotype, getApplicableStereotypes, getAppliedStereotype, getAppliedStereotypes, getAppliedSubstereotype, getAppliedSubstereotypes, getKeywords, getModel, getNearestPackage, getOwnedComments, getOwnedElements, getOwner, getRelationships, getRelationships, getRequiredStereotype, getRequiredStereotypes, getSourceDirectedRelationships, getSourceDirectedRelationships, getStereotypeApplication, getStereotypeApplications, getTargetDirectedRelationships, getTargetDirectedRelationships, getValue, hasKeyword, hasValue, isStereotypeApplicable, isStereotypeApplied, isStereotypeRequired, mustBeOwned, removeKeyword, setValue, unapplyStereotype, validateHasOwner, validateNotOwnSelf
 
Methods inherited from interface org.eclipse.emf.ecore.EModelElement
getEAnnotation, getEAnnotations
 
Methods inherited from interface org.eclipse.emf.ecore.EObject
eAllContents, eClass, eContainer, eContainingFeature, eContainmentFeature, eContents, eCrossReferences, eGet, eGet, eIsProxy, eIsSet, eResource, eSet, eUnset
 
Methods inherited from interface org.eclipse.emf.common.notify.Notifier
eAdapters, eDeliver, eNotify, eSetDeliver
 
Methods inherited from interface org.eclipse.uml2.uml.RedefinableElement
getRedefinedElement, getRedefinedElement, getRedefinedElements, getRedefinitionContext, getRedefinitionContext, getRedefinitionContexts, isConsistentWith, isLeaf, isRedefinitionContextValid, setIsLeaf, validateRedefinitionConsistent, validateRedefinitionContextValid
 
Methods inherited from interface org.eclipse.uml2.uml.Type
conformsTo, createAssociation, getAssociations, getPackage, setPackage
 
Methods inherited from interface org.eclipse.uml2.uml.ParameterableElement
getOwningTemplateParameter, getTemplateParameter, isCompatibleWith, isTemplateParameter, setOwningTemplateParameter, setTemplateParameter
 
Methods inherited from interface org.eclipse.uml2.uml.TemplateableElement
createOwnedTemplateSignature, createOwnedTemplateSignature, createTemplateBinding, getOwnedTemplateSignature, getTemplateBinding, getTemplateBinding, getTemplateBindings, isTemplate, parameterableElements, setOwnedTemplateSignature
 
Methods inherited from interface org.eclipse.uml2.uml.Relationship
getRelatedElements
 

Field Detail

METACLASS_ROLE_PREFIX

public static final String METACLASS_ROLE_PREFIX
The prefix for metaclass role names.

See Also:
Constant Field Values

STEREOTYPE_ROLE_PREFIX

public static final String STEREOTYPE_ROLE_PREFIX
The prefix for stereotype role names.

See Also:
Constant Field Values
Method Detail

isRequired

public boolean isRequired()
Returns the value of the 'Is Required' attribute. The default value is "false". Indicates whether an instance of the extending stereotype must be created when an instance of the extended class is created. The attribute value is derived from the multiplicity of the Property referenced by Extension::ownedEnd; a multiplicity of 1 means that isRequired is true, but otherwise it is false. Since the default multiplicity of an ExtensionEnd is 0..1, the default value of isRequired is false.

Returns:
the value of the 'Is Required' attribute.
See Also:
UMLPackage.getExtension_IsRequired()

getMetaclass

public Class getMetaclass()
Returns the value of the 'Metaclass' reference. It is bidirectional and its opposite is 'Extension'. References the Class that is extended through an Extension. The property is derived from the type of the memberEnd that is not the ownedEnd.

Returns:
the value of the 'Metaclass' reference.
See Also:
UMLPackage.getExtension_Metaclass(), Class.getExtensions()

validateNonOwnedEnd

public boolean validateNonOwnedEnd(DiagnosticChain diagnostics,
                                   Map context)
The non-owned end of an Extension is typed by a Class. metaclassEnd()->notEmpty() and metaclass()->oclIsKindOf(Class)


validateIsBinary

public boolean validateIsBinary(DiagnosticChain diagnostics,
                                Map context)
An Extension is binary, i.e., it has only two memberEnds. memberEnd->size() = 2


getStereotypeEnd

public Property getStereotypeEnd()
Retrieves the extension end that is typed by a stereotype (as opposed to a metaclass).


getStereotype

public Stereotype getStereotype()
Retrieves the stereotype that extends a metaclass through this extension.


metaclassEnd

public Property metaclassEnd()
The query metaclassEnd() returns the Property that is typed by a metaclass (as opposed to a stereotype). result = memberEnd->reject(ownedEnd)


Copyright 2003, 2006 IBM Corporation and others.
All Rights Reserved.