Table of Contents

Class PackageMerge

Namespace
NMF.Interop.Legacy.Cmof
Assembly
NMF.UMLInterop.dll

A package merge is a directed relationship between two packages, that indicates that the contents of the two packages are to be combined. It is very similar to Generalization in the sense that the source element conceptually adds the characteristics of the target element to its own characteristics resulting in an element that combines the characteristics of both.

This mechanism should be used when elements defined in different packages have the same name and are intended to represent the same concept. Most often it is used to provide different definitions of a given concept for different purposes, starting from a common base definition. A given base concept is extended in increments, with each increment defined in a separate merged package. By selecting which increments to merge, it is possible to obtain a custom definition of a concept for a specific end. Package merge is particularly useful in meta-modeling and is extensively used in the definition of the UML metamodel.

Conceptually, a package merge can be viewed as an operation that takes the contents of two packages and produces a new package that combines the contents of the packages involved in the merge. In terms of model semantics, there is no difference between a model with explicit package merges, and a model in which all the merges have been performed.

[AlternativeNamespace("http://schema.omg.org/spec/mof/2.0/emof.xmi")]
[XmlNamespace("http://schema.omg.org/spec/MOF/2.0/cmof.xml")]
[XmlNamespacePrefix("cmof")]
[ModelRepresentationClass("http://schema.omg.org/spec/MOF/2.0/cmof.xml#//PackageMerge")]
public class PackageMerge : DirectedRelationship, IPackageMerge, IDirectedRelationship, IRelationship, IElement, IModelElement, INotifyPropertyChanged, INotifyPropertyChanging
Inheritance
PackageMerge
Implements
Inherited Members

Properties

ClassInstance

Gets the Class model for this type

public static IClass ClassInstance { get; }

Property Value

IClass

MergedPackage

References the Package that is to be merged with the receiving package of the Package-Merge. Subsets DirectedRelationship::target.

[XmlElementName("mergedPackage")]
[XmlAttribute(true)]
public IPackage MergedPackage { get; set; }

Property Value

IPackage

ReceivingPackage

References the Package that is being extended with the contents of the merged package of the PackageMerge. Subsets Element::owner and DirectedRelationship::source.

[Browsable(false)]
[XmlElementName("receivingPackage")]
[XmlAttribute(true)]
[XmlOpposite("packageMerge")]
public IPackage ReceivingPackage { get; set; }

Property Value

IPackage

ReferencedElements

Gets the referenced model elements of this model element

public override IEnumerableExpression<IModelElement> ReferencedElements { get; }

Property Value

IEnumerableExpression<IModelElement>

Methods

GetClass()

Gets the Class for this model element

public override IClass GetClass()

Returns

IClass

GetExpressionForReference(string)

Gets the property expression for the given reference

protected override INotifyExpression<IModelElement> GetExpressionForReference(string reference)

Parameters

reference string

The requested reference in upper case

Returns

INotifyExpression<IModelElement>

An incremental property expression

GetModelElementForReference(string, int)

Resolves the given URI to a child model element

protected override IModelElement GetModelElementForReference(string reference, int index)

Parameters

reference string

The requested reference name

index int

The index of this reference

Returns

IModelElement

The model element or null if it could not be found

OnParentChanged(IModelElement, IModelElement)

Gets called when the parent model element of the current model element changes

protected override void OnParentChanged(IModelElement newParent, IModelElement oldParent)

Parameters

newParent IModelElement

The new parent model element

oldParent IModelElement

The old parent model element

OnParentChanging(IModelElement, IModelElement)

Gets called when the parent model element of the current model element is about to change

protected override void OnParentChanging(IModelElement newParent, IModelElement oldParent)

Parameters

newParent IModelElement

The new parent model element

oldParent IModelElement

The old parent model element

SetFeature(string, object)

Sets a value to the given feature

protected override void SetFeature(string feature, object value)

Parameters

feature string

The requested feature

value object

The value that should be set to that feature

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