InterfaceDef Object

The properties methods, and collections that a class implements are organized into functionally related groups. Each group is implemented as a Repository interface. The properties, methods, and collections of each interface are members of the interface. An interface definition is the template to which an interface conforms.

To add a new interface to the Repository, use the ClassDef object or the ReposTypeLib object.

An InterfaceDef object is also a RepositoryObject. In addition to the members described here, InterfaceDef objects also provide the members that are defined for Repository objects.

When to Use

Use the InterfaceDef class to:

Retrieve or modify properties of an interface definition.
Determine which members are attached to an interface definition.
Determine which classes implement an interface.
Determine the base interface from which an interface derives.
Determine what interfaces derive from a particular interface.
Determine what Repository objects expose a particular interface.
Add a new property, method, or collection type to an interface definition.

Properties

Property	Description
Flags	Flags that specify whether the interface is extensible, and whether the interface should be visible to Automation interface queries.
InterfaceID	The global interface identifier for the interface.
TableName	The name of the SQL table that is used to store instance information for the properties of the interface.

Methods

Method	Description
CreateMethodDef	Creates a new method definition, and attaches it to the interface definition.
CreatePropertyDef	Creates a new property definition, and attaches it to the interface definition.
CreateRelationshipColDef	Creates a relationship collection type. The collection type is attached to the interface definition.
ObjectInstances	Materializes an ObjectCol collection of all objects in the Repository that expose this interface.

Collections

Collection	Description
Ancestor	The collection of one base interface from which this interface derives.
Classes	The collection of classes that implement the interface.
Descendants	The collection of other interfaces that derive from this interface.
Members	The collection of members that are exposed by the interface.
ItemInCollections	This collection is empty for interface definitions.
Properties	The collection of all persistent properties that are attached to the InterfaceDef object.
ReposTypeLibScopes	The collection of all Repository type libraries that contain this definition.