Module io.helidon.microprofile.grpc.core

Package io.helidon.microprofile.grpc.core

Interface MethodHandlerSupplier

All Known Implementing Classes:

BidirectionalMethodHandlerSupplier, ClientStreamingMethodHandlerSupplier, ServerStreamingMethodHandlerSupplier, UnaryMethodHandlerSupplier

public interface MethodHandlerSupplier

A supplier of MethodHandlers for AnnotatedMethods.

Implementation classes may be annotated with Priority to influence their priority order when determining which supplier is used if more than one supplier is able to supply a handler for a method. The built-in default suppliers have a priority of zero, which is also the default priority for classes that are not annotated.

Method Summary

Modifier and Type	Method	Description
<ReqT, RespT> MethodHandler<ReqT,RespT>	get(String methodName, AnnotatedMethod method, Supplier<?> instance)	Supply a MethodHandler for a method.
boolean	supplies(AnnotatedMethod method)	Determine whether this MethodHandlerSupplier can supply a MethodHandler for a given method and type.

Method Details

supplies

boolean supplies(AnnotatedMethod method)

Determine whether this MethodHandlerSupplier can supply a MethodHandler for a given method and type.

Parameters:

method - the AnnotatedMethod to supply a handler for

Returns:

true if this supplier can supply a handler for the method

get

<ReqT,
RespT> MethodHandler<ReqT,RespT> get(String methodName,
 AnnotatedMethod method,
 Supplier<?> instance)

Supply a MethodHandler for a method.

Type Parameters:

ReqT - the request type

RespT - the response type

Parameters:

methodName - the gRPC method name

method - the method to supply a MethodHandler for

instance - the supplier to supply the actual call handler

Returns:

a MethodHandler for the method

Throws:

NullPointerException - if the method is null