DataObjectRestrictionMapper Class
Provides a way to customize mappings from generic restrictions to data-source-specific restrictions.
Namespace: Microsoft.VisualStudio.Data
Assembly: Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)
Syntax
Public MustInherit Class DataObjectRestrictionMapper _
Inherits ObjectWithSite
Dim instance As DataObjectRestrictionMapper
public abstract class DataObjectRestrictionMapper : ObjectWithSite
public ref class DataObjectRestrictionMapper abstract : public ObjectWithSite
public abstract class DataObjectRestrictionMapper extends ObjectWithSite
Remarks
Clients are able to generically enumerate certain objects using the concept mapping information provided in a DDEX provider's data object support XML. In order to perform better, a client needs the ability to use generic restrictions in their enumeration to specify which subset of objects they would like to retrieve.
To do this, it is necessary that DDEX convert generic restrictions (for example, Catalog, Schema, Name) into source-specific restrictions that are recognized natively by the DDEX provider
In most cases there is a one-to-one mapping between generic and source-specific restrictions, and this can easily be specified in the XML file. However, it is conceivable that restrictions are mapped in a more complex way, in which case a provider can implement a restriction mapper to convert the restrictions appropriately.
Inherits from the ObjectWithSite class.
Inheritance Hierarchy
System.Object
Microsoft.VisualStudio.Data.ObjectWithSite
Microsoft.VisualStudio.Data.DataObjectRestrictionMapper
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.