| // Copyright 2021 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| package dev.pigweed.pw_rpc; |
| |
| import com.google.protobuf.MessageLite; |
| |
| /** Receives events from an RPC stream. Used by all RPC types. */ |
| public interface StreamObserver<T extends MessageLite> { |
| /** Called when an RPC message is received. */ |
| void onNext(T value); |
| |
| /** Called when the RPC completes with the status returned from the RPC. */ |
| void onCompleted(Status status); |
| |
| /** Called when an RPC terminates unexpectedly due to an error. */ |
| void onError(Status status); |
| } |