Interface IFeatureLifecycleBehavior

Singleton service contract for feature lifecycle behaviors.

Namespace: Kephas.Application
Assembly: Kephas.Application.dll
Syntax
[SingletonAppServiceContract(AllowMultiple = true, MetadataAttributes = new Type[]{typeof(TargetFeatureAttribute)})]
public interface IFeatureLifecycleBehavior
Remarks

A feature lifecycle behavior intercepts the initialization and finalization of one or more features and reacts to them. Such features could log the performance of initialization, check prerequisites like proper licensing or whatever the application needs.

Methods

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AfterFinalizeAsync(IAppContext, FeatureManagerMetadata, CancellationToken)

Interceptor called after a feature completes its asynchronous finalization.

Declaration
Task AfterFinalizeAsync(IAppContext appContext, FeatureManagerMetadata serviceMetadata, CancellationToken cancellationToken = default(CancellationToken))
Parameters
Type Name Description
IAppContext appContext

Context for the application.
FeatureManagerMetadata serviceMetadata

The feature manager service metadata.
System.Threading.CancellationToken cancellationToken

The cancellation token (optional).
Returns
Type Description
System.Threading.Tasks.Task

A Task.
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AfterInitializeAsync(IAppContext, FeatureManagerMetadata, CancellationToken)

Interceptor called after a feature completes its asynchronous initialization.

Declaration
Task AfterInitializeAsync(IAppContext appContext, FeatureManagerMetadata serviceMetadata, CancellationToken cancellationToken = default(CancellationToken))
Parameters
Type Name Description
IAppContext appContext

Context for the application.
FeatureManagerMetadata serviceMetadata

The feature manager service metadata.
System.Threading.CancellationToken cancellationToken

The cancellation token (optional).
Returns
Type Description
System.Threading.Tasks.Task

A Task.
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BeforeFinalizeAsync(IAppContext, FeatureManagerMetadata, CancellationToken)

Interceptor called before a feature starts its asynchronous finalization.

Declaration
Task BeforeFinalizeAsync(IAppContext appContext, FeatureManagerMetadata serviceMetadata, CancellationToken cancellationToken = default(CancellationToken))
Parameters
Type Name Description
IAppContext appContext

Context for the application.
FeatureManagerMetadata serviceMetadata

The feature manager service metadata.
System.Threading.CancellationToken cancellationToken

The cancellation token (optional).
Returns
Type Description
System.Threading.Tasks.Task

A Task.
Remarks

To interrupt finalization, simply throw any appropriate exception. Caution! Interrupting the finalization may cause the application to remain in an undefined state.

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BeforeInitializeAsync(IAppContext, FeatureManagerMetadata, CancellationToken)

Interceptor called before a feature starts its asynchronous initialization.

Declaration
Task BeforeInitializeAsync(IAppContext appContext, FeatureManagerMetadata serviceMetadata, CancellationToken cancellationToken = default(CancellationToken))
Parameters
Type Name Description
IAppContext appContext

Context for the application.
FeatureManagerMetadata serviceMetadata

The feature manager service metadata.
System.Threading.CancellationToken cancellationToken

The cancellation token (optional).
Returns
Type Description
System.Threading.Tasks.Task

A Task.
Remarks

To interrupt the feature initialization, simply throw an appropriate exception.

Extension Methods