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353 lines
16 KiB
353 lines
16 KiB
// Copyright (c) 1997-2001 Microsoft Corporation, All Rights Reserved
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#pragma namespace ("\\\\.\\root\\default")
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// ==================================================================
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// NamedElement
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// ==================================================================
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[Assoc ("True") , Description (
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"The Meta_NamedElement class represents the root class for the "
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"Metaschema. It has one property: Name, which is inherited by all the "
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"non-association classes in the Metaschema. Every metaconstruct is "
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"expressed as a descendent of the class Meta_Named Element.") ]
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class Meta_NamedElement
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{
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[Description (
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"The Name property indicates the name of the current Metaschema element. "
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"The following rules apply to the Name property, depending on the "
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"creation type of the object:<UL><LI>Fully-qualified class names, such "
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"as those prefixed by the schema name, are unique within the schema."
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"<LI>Fully-qualified association and indication names are unique within "
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"the schema (implied by the fact that association and indication classes "
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"are subtypes of Meta_Class).<LI>Implicitly-defined qualifier names are "
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"unique within the scope of the characterized object; that is, a named "
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"element may not have two characteristics with the same name."
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"<LI>Explicitly-defined qualifier names are unique within the defining "
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"schema. An implicitly-defined qualifier must agree in type, scope and "
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"flavor with any explicitly-defined qualifier of the same name."
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"<LI>Trigger names must be unique within the property, class or method "
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"to which the trigger applies.<LI>Method and property names must be "
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"unique within the domain class. A class can inherit more than one "
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"property or method with the same name. Property and method names can be "
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"qualified using the name of the declaring class.<LI>Reference names "
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"must be unique within the scope of their defining association class. "
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"Reference names obey the same rules as property names.</UL><B>Note:</B> "
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"Reference names are not required to be unique within the scope of the "
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"related class. Within such a scope, the reference provides the name of "
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"the class within the context defined by the association.") ]
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string Name;
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};
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// ==================================================================
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// Schema
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// ==================================================================
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[Description (
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"The Meta_Schema class represents a group of classes with a single owner."
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" Schemas are used for administration and class naming. Class names must "
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"be unique within their owning schemas.") ]
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class Meta_Schema:Meta_NamedElement
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{
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};
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// ==================================================================
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// Trigger
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// ==================================================================
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[Description (
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"The Meta_Trigger class represents a state change of a class instance ("
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"such as create, delete, update, or access) or a property (update, or "
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"access only).") ]
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class Meta_Trigger:Meta_NamedElement
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{
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};
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// ==================================================================
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// Qualifier
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// ==================================================================
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[Description (
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"The Meta_Qualifier class represents characteristics of named elements. "
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"For example, there are qualifiers that define the characteristics of a "
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"property or the key of a class. Qualifiers provide a mechanism that "
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"makes the Metaschema extensible in a limited and controlled fashion."
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"<P>It is possible to add new types of qualifiers by the introduction of "
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"a new qualifier name, thereby providing new types of metadata to "
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"processes that manage and manipulate classes, properties, and other "
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"elements of the Metaschema.") ]
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class Meta_Qualifier:Meta_NamedElement
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{
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[Description ("The Name property indicates the name of the qualifier.")
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]
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string Name;
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[Description ("The Value property indicates the value of the qualifier."
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) ]
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string Value;
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};
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// ==================================================================
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// Method
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// ==================================================================
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[Description (
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"The Meta_Method class represents a declaration of a signature; that is, "
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"the method name, return type and parameters, and (in the case of a "
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"concrete class) may imply an implementation.") ]
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class Meta_Method:Meta_NamedElement
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{
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};
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// ==================================================================
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// Property
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// ==================================================================
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[Description (
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"The Meta_Property class represents a value used to characterize "
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"instances of a class. A property can be thought of as a pair of Get and "
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"Set functions that, when applied to an object, return state and set "
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"state, respectively.") ]
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class Meta_Property:Meta_NamedElement
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{
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};
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// ==================================================================
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// Reference
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// ==================================================================
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[Description (
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"The Meta_Reference class represents (and defines) the role each object "
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"plays in an association. The reference represents the role name of a "
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"class in the context of an association, which supports the provision of "
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"multiple relationship instances for a given object. For example, a "
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"system can be related to many system components.") ]
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class Meta_Reference:Meta_Property
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{
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};
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// ==================================================================
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// Class
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// ==================================================================
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[Description (
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"The Meta_Class class is a collection of instances that support the same "
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"type; that is, the same properties and methods. Classes can be arranged "
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"in a generalization hierarchy that represents subtype relationships "
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"between classes.<P>The generalization hierarchy is a rooted, directed "
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"graph and does not support multiple inheritance. Classes can have "
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"methods, which represent the behavior relevant for that class. A Class "
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"may participate in associations by being the target of one of the "
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"references owned by the association.") ]
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class Meta_Class:Meta_NamedElement
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{
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};
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// ==================================================================
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// Indication
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// ==================================================================
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[Description (
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"The Meta_Indication class represents an object created as a result of a "
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"trigger. Because Indications are subtypes of Meta_Class, they can have "
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"properties and methods, and be arranged in a type hierarchy. ") ]
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class Meta_Indication:Meta_Class
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{
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};
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// ==================================================================
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// Association
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// ==================================================================
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[Description (
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"The Meta_Association class represents a class that contains two or more "
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"references and represents a relationship between two or more objects. "
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"Because of how associations are defined, it is possible to establish a "
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"relationship between classes without affecting any of the related "
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"classes.<P>For example, the addition of an association does not affect "
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"the interface of the related classes; associations have no other "
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"significance. Only associations can have references. Associations can "
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"be a subclass of a non-association class . Any subclass of "
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"Meta_Association is an association.") ]
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class Meta_Association:Meta_Class
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{
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};
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// ==================================================================
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// Characteristics
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// ==================================================================
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[Association, Description (
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"The Meta_Characteristics class relates a Meta_NamedElement to a "
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"qualifier that characterizes the named element. Meta_NamedElement may "
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"have zero or more characteristics.") ]
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class Meta_Characteristics
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{
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[Description (
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"The Characteristic reference represents the qualifier that "
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"characterizes the named element.") ]
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Meta_Qualifier REF Characteristic;
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[Description (
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"The Characterized reference represents the named element that is being "
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"characterized.") ]
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Meta_NamedElement REF Characterized;
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};
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// ==================================================================
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// PropertyDomain
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// ==================================================================
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[Association, Description (
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"The Meta_PropertyDomain class represents an association between a class "
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"and a property.<P>A property has only one domain: the class that owns "
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"the property. A property can have an override relationship with another "
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"property from a different class. The domain of the overridden property "
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"must be a supertype of the domain of the overriding property. The "
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"domain of a reference must be an association.") ]
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class Meta_PropertyDomain
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{
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[Description (
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"The Property reference represents the property that is owned by the "
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"class referenced by Domain.") ]
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Meta_Property REF Property;
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[Description (
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"The Domain reference represents the class that owns the property "
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"referenced by Property.") ]
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Meta_Class REF Domain;
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};
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// ==================================================================
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// MethodDomain
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// ==================================================================
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[Association, Description (
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"The Meta_MethodDomain class represents an association between a class "
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"and a method.<P>A method has only one domain: the class that owns the "
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"method, which can have an override relationship with another method "
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"from a different class. The domain of the overridden method must be a "
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"supertype of the domain of the overriding method. The signature of the "
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"method (that is, the name, parameters and return type) must be "
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"identical.") ]
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class Meta_MethodDomain
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{
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[Description (
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"The Method reference represents the method that is owned by the class "
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"referenced by Domain.") ]
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Meta_Method REF Method;
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[Description (
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"The Domain reference represents the class that owns the method "
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"referenced by Method.") ]
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Meta_Class REF Domain;
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};
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// ==================================================================
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// ReferenceRange
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// ==================================================================
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[Association, Description (
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"The Meta_ReferenceRange class defines the type of the reference.") ]
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class Meta_ReferenceRange
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{
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[Description (
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"The Reference reference represents the reference whose type is defined "
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"by Range.") ]
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Meta_Reference REF Reference;
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[Description (
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"The Range reference represents the class that defines the type of "
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"reference.") ]
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Meta_Class REF Range;
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};
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// ==================================================================
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// SubtypeSupertype
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// ==================================================================
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[Association, Description (
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"The Meta_SubtypeSupertype class represents subtype/supertype "
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"relationships between classes arranged in a generalization hierarchy. "
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"This generalization hierarchy is a rooted, directed graph and does not "
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"support multiple inheritance.") ]
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class Meta_SubtypeSupertype
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{
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[Description (
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"The SuperClass reference represents the class that is hierarchically "
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"immediately above the class referenced by SubClass.") ]
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Meta_Class REF SuperClass;
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[Description (
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"The SubClass reference represents the class that is the immediate "
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"descendent of the class referenced by SuperClass.") ]
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Meta_Class REF SubClass;
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};
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// ==================================================================
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// PropertyOverride
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// ==================================================================
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[Association, Description (
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"The Meta_PropertyOverride class represents an association between two "
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"properties where one overrides the other.<P>Properties have reflexive "
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"associations that represent property overriding. A property can "
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"override an inherited property, which implies that any access to the "
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"inherited property will result in the invocation of the implementation "
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"of the overriding property. A Property can have an override "
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"relationship with another property from a different class.<P>The domain "
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"of the overridden property must be a supertype of the domain of the "
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"overriding property. The class referenced by the Meta_ReferenceRange "
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"association of an overriding reference must be the same as, or a "
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"subtype of, the class referenced by the Meta_ReferenceRange "
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"associations of the reference being overridden.") ]
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class Meta_PropertyOverride
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{
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[Description (
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"The OverridingProperty reference represents the property that overrides "
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"the property referenced by OverriddenProperty.") ]
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Meta_Property REF OverridingProperty;
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[Description (
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"The OverriddenProperty reference represents the property that is "
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"overriden by the property reference by OverridingProperty.") ]
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Meta_Property REF OverriddenProperty;
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};
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// ==================================================================
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// MethodOverride
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// ==================================================================
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[Association, Description (
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"The Meta_MethodOverride class represents an association between two "
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"methods, where one overrides the other. Methods have reflexive "
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"associations that represent method overriding. A method can override an "
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"inherited method, which implies that any access to the inherited method "
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"will result in the invocation of the implementation of the overriding "
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"method.") ]
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class Meta_MethodOverride
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{
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[Description (
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"The OverridingMethod reference represents the method that overrides the "
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"method referenced by OverriddenMethod.") ]
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Meta_Method REF OverridingMethod;
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[Description (
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"The OverriddenMethod reference represents the method that is overriden "
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"by the method reference by OverridingMethod.") ]
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Meta_Method REF OverriddenMethod;
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};
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// ==================================================================
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// ElementSchema
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// ==================================================================
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[Association, Description (
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"The Meta_ElementSchema class represents the elements (typically classes "
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"and qualifiers) that make up a schema.") ]
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class Meta_ElementSchema
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{
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[Description (
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"The Element reference represents the named element that belongs to the "
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"schema referenced by Schema.") ]
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Meta_NamedElement REF Element;
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[Description (
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"The Schema reference represents the schema to which the named element "
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"referenced by Element belongs.") ]
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Meta_Schema REF Schema;
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};
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// ==================================================================
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// ElementTrigger
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// ==================================================================
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[Association, Description (
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"The Meta_ElementTrigger association defines the relationship between an "
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"element and the triggers that are possible against that element. For "
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"example, all classes can have creation, deletion, and update triggers "
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"that are fired when creation, deletion, or update activity is applied "
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"to the class.") ]
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class Meta_ElementTrigger
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{
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[Description (
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"The Element reference represents the named element against which the "
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"trigger (referenced by Trigger) is activated.") ]
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Meta_NamedElement REF Element;
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[Description (
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"The Trigger reference represents a trigger that can be activated "
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"against the named element referenced by Element.") ]
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Meta_Trigger REF Trigger;
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};
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