Class MefCompositionContextBase

A MEF composition context.

Inheritance
System.Object
MefCompositionContextBase
MefCompositionContainer
MefScopedCompositionContext
Implements
System.IDisposable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Kephas.Composition.Mef.Hosting
Assembly: Kephas.Composition.Mef.dll
Syntax
public abstract class MefCompositionContextBase : ICompositionContext, IDisposable

Properties

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IsRoot

Gets a value indicating whether this object is root.

Declaration
protected virtual bool IsRoot { get; }
Property Value
Type Description
System.Boolean

True if this object is root, false if not.

Methods

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AssertNotDisposed()

Asserts that the container is not disposed.

Declaration
protected void AssertNotDisposed()
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CreateScopedContext()

Creates a new scoped composition context.

Declaration
public virtual ICompositionContext CreateScopedContext()
Returns
Type Description
ICompositionContext

The new scoped context.
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Dispose()

Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.

Declaration
public void Dispose()
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Dispose(Boolean)

Releases unmanaged and - optionally - managed resources.

Declaration
protected virtual void Dispose(bool disposing)
Parameters
Type Name Description
System.Boolean disposing

true to release both managed and unmanaged resources; false to release only unmanaged resources.
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GetExport(Type, String)

Resolves the specified contract type.

Declaration
public virtual object GetExport(Type contractType, string serviceName = null)
Parameters
Type Name Description
System.Type contractType

Type of the contract.
System.String serviceName

The service name.
Returns
Type Description
System.Object

An object implementing contractType.
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GetExport<T>(String)

Resolves the specified contract type.

Declaration
public virtual T GetExport<T>(string serviceName = null)
Parameters
Type Name Description
System.String serviceName

The service name.
Returns
Type Description
T

An object implementing T.
Type Parameters
Name Description
T

The service type.
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GetExports(Type)

Resolves the specified contract type returning multiple instances.

Declaration
public virtual IEnumerable<object> GetExports(Type contractType)
Parameters
Type Name Description
System.Type contractType

Type of the contract.
Returns
Type Description
System.Collections.Generic.IEnumerable<System.Object>

An enumeration of objects implementing contractType.
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GetExports<T>()

Resolves the specified contract type returning multiple instances.

Declaration
public virtual IEnumerable<T> GetExports<T>()
Returns
Type Description
System.Collections.Generic.IEnumerable<T>

An enumeration of objects implementing T.
Type Parameters
Name Description
T

The service type.
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Initialize(CompositionContext)

Initializes a new instance of the MefCompositionContextBase class.

Declaration
protected void Initialize(CompositionContext context)
Parameters
Type Name Description
System.Composition.CompositionContext context

The inner container.
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TryGetExport(Type, String)

Tries to resolve the specified contract type.

Declaration
public virtual object TryGetExport(Type contractType, string serviceName = null)
Parameters
Type Name Description
System.Type contractType

Type of the contract.
System.String serviceName

The service name.
Returns
Type Description
System.Object

An object implementing contractType, or null if a service with the provided contract was not found.
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TryGetExport<T>(String)

Tries to resolve the specified contract type.

Declaration
public virtual T TryGetExport<T>(string serviceName = null)
Parameters
Type Name Description
System.String serviceName

The service name.
Returns
Type Description
T

An object implementing T, or null if a service with the provided contract was not found.
Type Parameters
Name Description
T

The service type.

Implements

System.IDisposable

Extension Methods