# `RpcLoadBalancer.LoadBalancer.WeightedRoundRobinCache` [🔗](https://github.com/MikaAK/rpc_load_balancer/blob/main/lib/rpc_load_balancer/load_balancer/weighted_round_robin_cache.ex#L1) ETS-backed cache for the expanded weighted node list maintained by `RpcLoadBalancer.LoadBalancer.SelectionAlgorithm.WeightedRoundRobin`. The expanded list is `Enum.flat_map(node_list, &List.duplicate(&1, weight))` — rebuilt only when the running node membership changes. Storing it in ETS (not `:persistent_term`) means topology churn doesn't trigger global GC sweeps; in a large cluster with continuous flapping that would dominate. Hot-path reads use the macro-injected `lookup/1` (direct `:ets.lookup/2`) and writes use `insert_raw/1`, bypassing both the telemetry wrapper and `Cache.TermEncoder`. # `entry` ```elixir @type entry() :: {[node()], [node()]} ``` # `adapter_options` # `all` Returns a list of all ETS tables at the node. # `cache_adapter` # `cache_name` # `child_spec` # `delete` # `delete_all_objects` Deletes all objects in the ETS table. # `delete_expanded` ```elixir @spec delete_expanded(atom()) :: :ok ``` # `delete_object` Deletes the exact object from the ETS table. # `delete_table` Deletes the entire ETS table. # `file2tab` Reads a file produced by tab2file/1,2 and creates the corresponding table. # `file2tab` Reads a file produced by tab2file/1,2 and creates the corresponding table with options. # `first` Returns the first key in the table. # `first_lookup` Returns the first key and object(s) in the table. (OTP 26+) # `foldl` Folds over all objects in the table from first to last. # `foldr` Folds over all objects in the table from last to first. # `from_dets` Convert a DETS table to an ETS table. # `get` # `get_expanded` ```elixir @spec get_expanded(atom()) :: entry() | nil ``` # `get_or_create` # `give_away` Makes process pid the new owner of the table. # `info` Get information about the ETS table. # `info` Get specific information about the ETS table. # `init_table` Replaces the existing objects of the table with objects created by calling the input function. # `insert_new` Same as insert/2 except returns false if any object with the same key already exists. # `insert_raw` Insert raw data into the ETS table using the underlying :ets.insert/2 function. # `is_compiled_ms` Checks if a term represents a valid compiled match specification. # `last` Returns the last key in the table (for ordered_set, otherwise same as first). # `last_lookup` Returns the last key and object(s) in the table. (OTP 26+) # `lookup` Returns a list of all objects with the given key. # `lookup_element` Returns the Pos:th element of the object with the given key. # `lookup_element` Returns the Pos:th element of the object with the given key, or default if not found. (OTP 26+) # `match` Continues a match started with match/2. # `match_delete` Deletes all objects that match the pattern from the table. # `match_object` Match objects in the ETS table that match the given pattern. # `match_object` Match objects in the ETS table that match the given pattern with limit. # `match_pattern` Matches the objects in the table against the pattern. # `match_pattern` Matches the objects in the table against the pattern with a limit. # `match_spec_compile` Transforms a match specification into an internal representation. # `match_spec_run` Executes the matching specified in a compiled match specification on a list of terms. # `member` Check if a key is a member of the ETS table. # `next` Returns the next key following the given key. # `next_lookup` Returns the next key and object(s) following the given key. (OTP 26+) # `prev` Returns the previous key preceding the given key (for ordered_set). # `prev_lookup` Returns the previous key and object(s) preceding the given key. (OTP 26+) # `put` # `put_expanded` ```elixir @spec put_expanded(atom(), [node()], [node()]) :: :ok ``` # `rename` Renames the table to the new name. # `repair_continuation` Restores an opaque continuation that has passed through external term format. # `safe_fixtable` Fixes the table for safe traversal. # `select` Select objects from the ETS table using a match specification. # `select` Select objects from the ETS table using a match specification with limit. # `select_count` Counts the objects matching the match specification. # `select_delete` Delete objects from the ETS table using a match specification. # `select_replace` Replaces objects matching the match specification with the match specification result. # `select_reverse` Like select/1 but returns the list in reverse order for ordered_set. # `select_reverse` Like select/2 but traverses in reverse order for ordered_set. # `setopts` Sets table options (only heir is allowed after creation). # `slot` Returns the list of objects associated with slot I. # `tab2file` Dumps the table to a file. # `tab2file` Dumps the table to a file with options. # `tab2list` Returns a list of all objects in the table. # `tabfile_info` Returns information about the table dumped to file. # `table` Returns a QLC query handle for the table. # `table` Returns a QLC query handle for the table with options. # `take` Returns and removes all objects with the given key. # `test_ms` Tests a match specification against a tuple. # `to_dets` Convert an ETS table to a DETS table. # `update_counter` Update a counter in the ETS table. # `update_counter` Update a counter in the ETS table with a default value. # `update_element` Updates specific elements of an object. # `update_element` Updates specific elements of an object with a default. (OTP 26+) # `whereis` Returns the tid of this named table. --- *Consult [api-reference.md](api-reference.md) for complete listing*