@Override
  public Map<K, V> getAll(List<K> keys) {
    Map<K, V> results = new HashMap<>();
    for (K key : keys) {
      byte[] value = map.get(keySerde.toBytes(key));
      if (value != null) {
        results.put(key, valSerde.fromBytes(value));
      }
    }
    return results;
  }
An in-memory store that supports range queries.

@param <K> the type of keys in the store
@param <V> the type of values in the store
samza-core/src/test/java/org/apache/samza/operators/impl/store/TestInMemoryStore.java