Class Context

A base implementation for contexts.

Inheritance

System.Object

System.Dynamic.DynamicObject

ExpandoBase

Expando

Context

AppContext

CompositionRegistrationContext

CodeConversionContext

EncryptionContext

HashingContext

ClientQueryExecutionContext

DataConversionContext

DataContextBase

DataContextConfiguration

DataOperationContext

DataSpace

DataIOContext

DataSetupContext

CodeGenerationContext

MessagingContext

ModelConstructionContext

ScriptingContext

AuthenticationContext

AuthorizationContext

SerializationContext

ServiceBehaviorContext<TServiceContract>

HostConfigurationContext

ActivityContext

Implements

IContext

IExpando

System.Dynamic.IDynamicMetaObjectProvider

IIndexable

ILoggable

System.IDisposable

Inherited Members

ExpandoBase.Item[String]

ExpandoBase.GetDynamicMemberNames()

ExpandoBase.HasDynamicMember(String)

ExpandoBase.TryGetMember(GetMemberBinder, Object)

ExpandoBase.TrySetMember(SetMemberBinder, Object)

ExpandoBase.TryInvokeMember(InvokeMemberBinder, Object[], Object)

ExpandoBase.ToDictionary(Func<String, String>, Func<Object, Object>)

ExpandoBase.GetInnerObjectTypeInfo()

ExpandoBase.GetThisTypeInfo()

ExpandoBase.TryGetValue(String, Object)

ExpandoBase.TrySetValue(String, Object)

System.Dynamic.DynamicObject.GetMetaObject(System.Linq.Expressions.Expression)

System.Dynamic.DynamicObject.TryBinaryOperation(System.Dynamic.BinaryOperationBinder, System.Object, System.Object)

System.Dynamic.DynamicObject.TryConvert(System.Dynamic.ConvertBinder, System.Object)

System.Dynamic.DynamicObject.TryCreateInstance(System.Dynamic.CreateInstanceBinder, System.Object[], System.Object)

System.Dynamic.DynamicObject.TryDeleteIndex(System.Dynamic.DeleteIndexBinder, System.Object[])

System.Dynamic.DynamicObject.TryDeleteMember(System.Dynamic.DeleteMemberBinder)

System.Dynamic.DynamicObject.TryGetIndex(System.Dynamic.GetIndexBinder, System.Object[], System.Object)

System.Dynamic.DynamicObject.TryInvoke(System.Dynamic.InvokeBinder, System.Object[], System.Object)

System.Dynamic.DynamicObject.TrySetIndex(System.Dynamic.SetIndexBinder, System.Object[], System.Object)

System.Dynamic.DynamicObject.TryUnaryOperation(System.Dynamic.UnaryOperationBinder, System.Object)

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.Services

Assembly: Kephas.Core.dll

Syntax

public class Context : Expando, IContext, IExpando, IDynamicMetaObjectProvider, IIndexable, ILoggable, IDisposable

Constructors

Context()

Initializes a new instance of the Context class.

Declaration

[Obsolete("In the near future it will be allowed only to pass a composition context to the context constructor.")]
protected Context()

Context(ICompositionContext, Boolean)

Initializes a new instance of the Context class.

Declaration

public Context(ICompositionContext compositionContext, bool isThreadSafe = false)

Parameters

Type	Name	Description
ICompositionContext	compositionContext	The context for the composition (optional). If not provided, AmbientServices.Instance.CompositionContainer will be considered.
System.Boolean	isThreadSafe	true if this object is thread safe when working with the internal dictionary, false otherwise. Default is false.

Context(IAmbientServices, Boolean)

Initializes a new instance of the Context class.

Declaration

public Context(IAmbientServices ambientServices, bool isThreadSafe = false)

Parameters

Type	Name	Description
IAmbientServices	ambientServices	The ambient services.
System.Boolean	isThreadSafe	true if this object is thread safe when working with the internal dictionary, false otherwise. Default is false.

Context(IContext, Boolean, Boolean)

Initializes a new instance of the Context class.

Declaration

public Context(IContext parentContext, bool isThreadSafe = false, bool merge = false)

Parameters

Type	Name	Description
IContext	parentContext	The parent context.
System.Boolean	isThreadSafe	Optional. true if this object is thread safe when working with the internal dictionary, false otherwise. Default is false.
System.Boolean	merge	Optional. True to merge the parent context into the new context.

Properties

AmbientServices

Gets the ambient services.

Declaration

public IAmbientServices AmbientServices { get; }

Property Value

Type	Description
IAmbientServices

CompositionContext

Gets the dependency injection/composition context.

Declaration

public ICompositionContext CompositionContext { get; }

Property Value

Type	Description
ICompositionContext

Identity

Gets or sets the authenticated user.

Declaration

public IIdentity Identity { get; set; }

Property Value

Type	Description
System.Security.Principal.IIdentity

Logger

Gets or sets the context logger.

Declaration

public ILogger Logger { get; set; }

Property Value

Type	Description
ILogger	The context logger.

Methods

Dispose()

Releases the unmanaged resources used by the Kephas.Services.Context and optionally releases the managed resources.

Declaration

public void Dispose()

Dispose(Boolean)

Releases the unmanaged resources used by the Kephas.Services.Context and optionally releases the 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.

SetAmbientServices(IAmbientServices)

Sets ambient services.

Declaration

protected virtual void SetAmbientServices(IAmbientServices ambientServices)

Parameters

Type	Name	Description
IAmbientServices	ambientServices	The ambient services (optional). If not provided, AmbientServices.Instance will be considered.

Remarks

The composition context is also set as the one exposed by the ambient services.

SetCompositionContext(ICompositionContext)

Sets composition context.

Declaration

protected virtual void SetCompositionContext(ICompositionContext compositionContext)

Parameters

Type	Name	Description
ICompositionContext	compositionContext	The context for the composition (optional). If not provided, AmbientServices.Instance.CompositionContainer will be considered.

ValidateIdentity(IIdentity, IIdentity)

Validates the identity before changing it.

Declaration

protected virtual bool ValidateIdentity(IIdentity currentValue, IIdentity newValue)

Parameters

Type	Name	Description
System.Security.Principal.IIdentity	currentValue	The current value.
System.Security.Principal.IIdentity	newValue	The new value.

Returns

Type	Description
System.Boolean	True if validation succeeds, false if it fails.

Implements

IContext

IExpando

System.Dynamic.IDynamicMetaObjectProvider

IIndexable

ILoggable

System.IDisposable

Extension Methods

DynamicObjectExtensions.SetPropertyValue(Object, String, Object)

DynamicObjectExtensions.TrySetPropertyValue(Object, String, Object)

DynamicObjectExtensions.GetPropertyValue(Object, String)

DynamicObjectExtensions.TryGetPropertyValue(Object, String, out Object)

DynamicObjectExtensions.GetRuntimeTypeInfo(Object)

DynamicObjectExtensions.ToDynamic(Object)

DynamicObjectExtensions.ToExpando(Object)

BehaviorValue.ToBehaviorValue<TValue>(TValue)

CollectionExtensions.AddRange<T, TItem>(T, IEnumerable<TItem>)

ExpandoExtensions.Merge<T>(T, Object)

ExpandoExtensions.GetLaxValue<T>(IIndexable, String, T)

LoggingExtensions.GetLogger(Object, IContext)

TypeExtensions.GetAbstractType(Object)

TypeExtensions.GetAbstractTypeInfo(Object)

ReflectionHelper.GetTypeInfo(Object)

ContextExtensions.WithIdentity<TContext>(TContext, IIdentity)

ContextExtensions.WithLogger<TContext>(TContext, ILogger)

ContextExtensions.AddResource<TContext>(TContext, IDisposable[])

MessageBrokerExtensions.CreateBrokeredMessageBuilder(IContext)

ContextExtensions.InitialData(IContext)

ContextExtensions.WithInitialData<TContext>(TContext, IEnumerable<(Object entity, ChangeState changeState)>)

ContextExtensions.WithInitialData<TContext>(TContext, IEnumerable<Object>)

ContextExtensions.WithInitialData<TContext>(TContext, IEnumerable<IChangeStateTrackableEntityEntry>)

EntityEntryExtensions.TryGetAttachedEntityEntry(Object)