Class ObjectRegistry<TExtensionAttribute, TExtensionType>

Helper class for implementers of extension points, which allows easy instantiation of all extensions registered with an extension point identified by a specific type of extension attribute.

Inheritance

Object

ObjectRegistry<TExtensionAttribute, TExtensionType>

SortedObjectRegistry<TSortableExtensionAttribute, TExtensionType>

Namespace: Sdl.Core.PluginFramework

Assembly: Sdl.Core.PluginFramework.dll

Syntax

public class ObjectRegistry<TExtensionAttribute, TExtensionType> : Object where TExtensionAttribute : ExtensionAttribute where TExtensionType : class

Type Parameters

Name	Description
TExtensionAttribute	The type of extension attribute, identifying the extension point.
TExtensionType	The type of the extension implementation classes for the extension point.

Constructors

ObjectRegistry(IPluginRegistry)

Constructs an object registry for the specified extension attribute.

Declaration

public ObjectRegistry(IPluginRegistry pluginRegistry)

Parameters

Type	Name	Description
IPluginRegistry	pluginRegistry	The plug-in registry from which to retrieve the extensions.

Properties

ExtensionPoint

Returns the id of the extension point from which the objects should be loaded.

Declaration

public IExtensionPoint ExtensionPoint { get; }

Property Value

Type	Description
IExtensionPoint

Methods

CreateObjects()

Creates an instance of all the objects registered with the extension point an returns them as an array.

Declaration

public virtual TExtensionType[] CreateObjects()

Returns

Type	Description
TExtensionType[]	An array, containing a new instance of every object registered with the extension point.

Exceptions

Type	Condition
System.InvalidCastException	Thrown when any of the created objects cannot be cast to the required type.