org.apache.hadoop.hbase.client

Interface ServiceCaller<S,R>

Type Parameters:

S - the type of the protobuf Service you want to call.

R - the type of the return value.

Functional Interface:

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

@InterfaceAudience.Public
 @FunctionalInterface
public interface ServiceCaller<S,R>

Delegate to a protobuf rpc call.

Usually, it is just a simple lambda expression, like:

 (stub, controller, rpcCallback) -> {
   XXXRequest request = ...; // prepare the request
   stub.xxx(controller, request, rpcCallback);
 }
 

And if already have the request, the lambda expression will be:

 (stub, controller, rpcCallback) -> stub.xxx(controller, request, rpcCallback)
 

Method Summary

Modifier and Type	Method and Description
void	call(S stub, com.google.protobuf.RpcController controller, com.google.protobuf.RpcCallback<R> rpcCallback) Represent the actual protobuf rpc call.

Method Detail

call

void call(S stub,
          com.google.protobuf.RpcController controller,
          com.google.protobuf.RpcCallback<R> rpcCallback)

Represent the actual protobuf rpc call.

Parameters:

stub - the asynchronous stub

controller - the rpc controller, has already been prepared for you

rpcCallback - the rpc callback, has already been prepared for you