 AirConcurrentMap, is an in-memory map that implements the Java ConcurrentMap interface, but internally it uses a multi-core design so that its performance and memory make it the fastest Java Map when ordering is performed and it holds medium to large numbers of entries.AirConcurrentMap iteration is faster than any Java Map iterators, regardless of the specific map type.InfinityDB can be accessed as an extended standard java.util.concurrent.ConcurrentNavigableMap, or via a low-level 'ItemSpace' API.