Interface IServiceCallContext

Represents service call context.

This context is implicitly passed to the service and can be retrieved inside the service using CurrentCallContext. It is accessible only from the local thread during the execution of a service method.

Use ServiceCallContextBuilder to instantiate the context.

Note: passing the context to the service may lead to performance overhead, so it should only be used for "middleware" tasks.

Usage example:

// Service implementation.
public class HelloServiceImpl : HelloService
{
    private IServiceContext ctx;

    public void Init(IServiceContext ctx)
    {
        this.ctx = ctx;
    }

    public string Call(string msg)
    {
        return msg + ctx.CurrentCallContext.Attribute("user");
    }
    ...
}
...

// Call this service with context.
IServiceCallContext callCtx = new ServiceCallContextBuilder().Set("user", "John").build();
HelloService helloSvc = ignite.GetServices().GetServiceProxy<HelloService>("hello-service", false, callCtx);
// Print "Hello John".
Console.WriteLine( helloSvc.call("Hello ") );
Namespace: Apache.Ignite.Core.Services
Assembly: Apache.Ignite.Core.dll
Syntax
public interface IServiceCallContext

Methods

GetAttribute(String)

Gets the string attribute.

Declaration
string GetAttribute(string name)
Parameters
Type Name Description
System.String name

Attribute name.
Returns
Type Description
System.String

String attribute value.

GetBinaryAttribute(String)

Gets the binary attribute.

Declaration
byte[] GetBinaryAttribute(string name)
Parameters
Type Name Description
System.String name

Attribute name.
Returns
Type Description
System.Byte[]

Binary attribute value.

See Also