DataObjectConceptMapper Class
Enables providing a customized mapper of data-source-specific metadata into well known concepts for use by a generic designer.
Inheritance Hierarchy
System.Object
Microsoft.VisualStudio.Data.ObjectWithSite
Microsoft.VisualStudio.Data.DataObjectConceptMapper
Microsoft.VisualStudio.Data.AdoDotNet.AdoDotNetObjectConceptMapper
Namespace: Microsoft.VisualStudio.Data
Assembly: Microsoft.VisualStudio.Data (in Microsoft.VisualStudio.Data.dll)
Syntax
'Declaration
Public MustInherit Class DataObjectConceptMapper _
Inherits ObjectWithSite
public abstract class DataObjectConceptMapper : ObjectWithSite
public ref class DataObjectConceptMapper abstract : public ObjectWithSite
[<AbstractClass>]
type DataObjectConceptMapper =
class
inherit ObjectWithSite
end
public abstract class DataObjectConceptMapper extends ObjectWithSite
The DataObjectConceptMapper type exposes the following members.
Constructors
| Name | Description | |
|---|---|---|
.gif "Protected method") |
DataObjectConceptMapper | Class constructor. Initializes a new instance of the DataObjectConceptMapper class. |
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Properties
| Name | Description | |
|---|---|---|
.gif "Protected property") |
Connection | Retrieves the active DataConnection object instance to be used for any code that relies on connection-specific information. |
.gif "Public property") |
Site | Retrieves or sets the object site. (Inherited from ObjectWithSite.) |
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Methods
| Name | Description | |
|---|---|---|
.gif "Public method") |
Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
|
Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
|
GetHashCode | Serves as the default hash function. (Inherited from Object.) |
|
GetType | Gets the Type of the current instance. (Inherited from Object.) |
|
MapValuesToConcept | Maps one or more data-source-specific values to a specified generic concept. |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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OnSiteChanged | Raises the SiteChanged event. (Inherited from ObjectWithSite.) |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
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Events
| Name | Description | |
|---|---|---|
.gif "Public event") |
SiteChanged | Event that is raised when the Site property is changed. (Inherited from ObjectWithSite.) |
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Explicit Interface Implementations
| Name | Description | |
|---|---|---|
.gif "Explicit interface implemetation") .gif "Private method") |
IObjectWithSite.GetSite | Retrieves the last site set using the IObjectWithSite.SetSite method. In cases where there is no known site, the object returns an exception. (Inherited from ObjectWithSite.) |
|
IObjectWithSite.SetSite | Provides the site's pointer to the site object. (Inherited from ObjectWithSite.) |
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Remarks
A DDEX Provider should implement the DataObjectConceptMapper class when the mapping from data-source-specific metadata into a well known concept is too complicated to specify in their data object support XML file.
The DDEX Provider should specify a custom mapper for the target concept in their XML file as either a COM class ID that is registered in the Visual Studio local registry hive under the CLSID key, or as a managed type name, qualified as necessary.
At runtime, the DDEX metadata engine initializes an instance of this class and sites the object with the active DataConnection object.
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.
See Also
Reference
Microsoft.VisualStudio.Data Namespace