ServiceCallFactory

```
public interface ServiceCallFactory
```
A service call factory.
This is used to create ServiceCall's that can be passed to EffectContext.effect(ServiceCall) and ClientActionContext.forward(ServiceCall) f}.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`<T> ServiceCallRef<T>`	`lookup(java.lang.String serviceName, java.lang.String methodName, java.lang.Class<T> messageType)`	Lookup a reference to the service call with the given name and method.

- Method Detail
  - lookup
```
<T> ServiceCallRef<T> lookup(java.lang.String serviceName,
                             java.lang.String methodName,
                             java.lang.Class<T> messageType)
```
    Lookup a reference to the service call with the given name and method.
    
    Type Parameters:
    
    T - The type of the parameter that it accepts.
    
    Parameters:
    
    serviceName - The fully qualified name of a gRPC service that this stateful service serves.
    
    methodName - The name of a method on the gRPC service.
    
    messageType - The expected type of the input message to the method.
    
    Returns:
    
    A reference to the service call.
    
    Throws:
    
    java.util.NoSuchElementException - if the service or method is not found.
    
    java.lang.IllegalArgumentException - if the accepted input type for the method doesn't match messageType.