public static CacheableDeserializer<Cacheable> getDeserializer(int id) {
    return registeredDeserializers.get(id);
  }
Get the cacheable deserializer registered at the given identifier Id.
@see #registerDeserializer(CacheableDeserializer)
hbase-server/src/main/java/org/apache/hadoop/hbase/io/hfile/CacheableDeserializerIdManager.java