io.servicetalk.grpc.api

Interface GrpcServiceFilterFactory<Filter extends Service,Service>

Type Parameters:

Filter - Type for service filter

Service - Type for service

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface GrpcServiceFilterFactory<Filter extends Service,Service>

A factory to create gRPC service filters.

Method Summary

Modifier and Type	Method and Description
default GrpcServiceFilterFactory<Filter,Service>	append(GrpcServiceFilterFactory<Filter,Service> before) Returns a composed factory that first applies the before factory to its input, and then applies this factory to the result.
Filter	create(Service service) Create a Filter using the provided Service.

Method Detail

create

Filter create(Service service)

Create a Filter using the provided Service.

Parameters:

service - Service to filter.

Returns:

Filter using the provided Service.

append

default GrpcServiceFilterFactory<Filter,Service> append(GrpcServiceFilterFactory<Filter,Service> before)

Returns a composed factory that first applies the before factory to its input, and then applies this factory to the result.

The order of execution of these filters are in order of append. If 3 filters are added as follows:

     builder.append(filter1).append(filter2).append(filter3)
 

accepting a request by a service wrapped by this filter chain, the order of invocation of these filters will be:

     filter1 => filter2 => filter3 => service
 

Parameters:

before - the factory to apply before this factory is applied.

Returns:

a composed factory that first applies the before factory and then applies this factory.