| /* |
| * |
| * Copyright 2020 gRPC 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 |
| * |
| * http://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 balancergroup |
| |
| import ( |
| "google.golang.org/grpc/balancer" |
| ) |
| |
| // BalancerStateAggregator aggregates sub-picker and connectivity states into a |
| // state. |
| // |
| // It takes care of merging sub-picker into one picker. The picking config is |
| // passed directly from the parent to the aggregator implementation (instead |
| // via balancer group). |
| type BalancerStateAggregator interface { |
| // UpdateState updates the state of the id. |
| // |
| // It's up to the implementation whether this will trigger an update to the |
| // parent ClientConn. |
| UpdateState(id string, state balancer.State) |
| } |