raft_kv v0.2.0 RaftKV.LeaderHook behaviour View Source
Behaviour module for hooks that are invoked in leader of a consensus group.
Note that there are cases where hooks are invoked multiple times for a single event due to leader change.
Link to this section Summary
Callbacks
Hook to be called when a command given by RaftKV.command/4
or RaftKV.command_on_all_keys_in_shard/3
is executed
Hook to be called when a query given by RaftKV.query/4
is executed
Link to this section Callbacks
Link to this callback
on_command_committed(value_before, size_before, key, arg, ret, value_after, size_after)
View Source
on_command_committed( value_before :: nil | RaftKV.ValuePerKey.value(), size_before :: RaftKV.ValuePerKey.size(), key :: RaftKV.ValuePerKey.key(), arg :: RaftKV.ValuePerKey.command_arg(), ret :: RaftKV.ValuePerKey.command_ret(), value_after :: nil | RaftKV.ValuePerKey.value(), size_after :: RaftKV.ValuePerKey.size() ) :: any()
Hook to be called when a command given by RaftKV.command/4
or RaftKV.command_on_all_keys_in_shard/3
is executed.
Link to this callback
on_query_answered(value, size, key, arg, ret)
View Source
on_query_answered( value :: RaftKV.ValuePerKey.value(), size :: RaftKV.ValuePerKey.size(), key :: RaftKV.ValuePerKey.key(), arg :: RaftKV.ValuePerKey.query_arg(), ret :: RaftKV.ValuePerKey.query_ret() ) :: any()
Hook to be called when a query given by RaftKV.query/4
is executed.