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Support Types

Kommander exposes a few utility types used internally and available to callers.

Parallelization Extensions​

Kommander.Support.Parallelization contains ForEachAsync extensions for IEnumerable<T>, IAsyncEnumerable<T>, List<T>, arrays, and HashSet<T>.

using Kommander.Support.Parallelization;

await items.ForEachAsync(maxDegreeOfParallelism: 8, async item =>
{
    await Process(item);
});

SmallDictionary​

SmallDictionary<TKey, TValue> is a fixed-capacity, non-thread-safe dictionary optimized for very small maps.

Use it where the expected key count is small and predictable.

Partition Types​

Elastic partition APIs use a few public support types:

  • RaftPartitionRange: one partition-map entry, including PartitionId, hash range, Generation, State, and RoutingMode.
  • RaftPartitionLifecycleResult: result from create, remove, split, and merge operations.
  • RaftSplitPlan: optional split configuration such as target partition id, routing mode, and hash boundary.
  • RaftMergePlan: identifies the survivor and source partitions during merge.
  • RaftPartitionState: Active, Splitting, Draining, Removed.
  • RaftRoutingMode: HashRange, Unrouted.

See Elastic Partitions for when applications should use these types.