Interface IInvocationContext

Contains the related context of a perticular method invocation

Namespace: Solti.Utils.DI.Interfaces

Assembly: Solti.Utils.DI.Interfaces.dll

Syntax

public interface IInvocationContext

Remarks

This context is used during interface interception in Invoke(IInvocationContext, CallNextDelegate<IInvocationContext, Object>) method.

Properties

Args

The arguments passed by the caller.

Declaration

object[] Args { get; }

Property Value

Type	Description
System.Object[]

Remarks

You can modify input arguments by changening the corrensponing value in this array before dispatching the invocation:

object IInterfaceInterceptor.Invoke(IInvocationContext context, Next<object> callNext)
{
    context.Args[0] = "cica";
    return callNext();
}

InterfaceMember

The member (property, event or method) that is being invoked.

Declaration

MemberInfo InterfaceMember { get; }

Property Value

Type	Description
System.Reflection.MemberInfo

InterfaceMethod

The concrete method behind the InterfaceMember.

Declaration

MethodInfo InterfaceMethod { get; }

Property Value

Type	Description
System.Reflection.MethodInfo

Next

Context belonging to the next interceptor.

Declaration

IInvocationContext Next { get; }

Property Value

Type	Description
IInvocationContext

ProxyInstance

The underlying proxy instance. It's safe to cast it to the actual interface.

Declaration

object ProxyInstance { get; }

Property Value

Type	Description
System.Object

Remarks

This property is useful when you want to invoke interface members involving their interceptors too:

object IInterfaceInterceptor.Invoke(IInvocationContext context, Next<object> callNext)
{
    ((IMyService) context.ProxyInstance).SomeMethod();
    return callNext();
}

TargetMember

The member (property, event or method) that is being targeted.

Declaration

MemberInfo TargetMember { get; }

Property Value

Type	Description
System.Reflection.MemberInfo

TargetMethod

The concrete method behind the TargetMember.

Declaration

MethodInfo TargetMethod { get; }

Property Value

Type	Description
System.Reflection.MethodInfo

UserData

Custom user data meant to share state among interceptors in the invocation chain.

Declaration

object UserData { get; set; }

Property Value

Type	Description
System.Object

Methods

InvokeInterceptor()

Invokes the actual interceptor. Meant for private use only.

Declaration

object InvokeInterceptor()

Returns

Type	Description
System.Object