io.grpc

Class LoadBalancer2.SubchannelPicker

java.lang.Object

io.grpc.LoadBalancer2.SubchannelPicker

Enclosing class:

LoadBalancer2

@ThreadSafe
public abstract static class LoadBalancer2.SubchannelPicker
extends Object

The main balancing logic. It must be thread-safe. Typically it should only synchronize on its own state, and avoid synchronizing with the LoadBalancer's state.

Constructor Summary

Constructors

Constructor and Description
SubchannelPicker()

Method Summary

Modifier and Type	Method and Description
abstract LoadBalancer2.PickResult	pickSubchannel(Attributes affinity, Metadata headers) Make a balancing decision for a new RPC.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

SubchannelPicker

public SubchannelPicker()

Method Detail

pickSubchannel

public abstract LoadBalancer2.PickResult pickSubchannel(Attributes affinity,
                                                        Metadata headers)

Make a balancing decision for a new RPC.

Parameters:

affinity - the affinity attributes provided via CallOptions.withAffinity(io.grpc.Attributes)

headers - the headers container of the RPC. It can be mutated within this method.