These are the APIs for the Continuous Query feature of WebSphere eXtreme Scale. This feature allows clients to maintain a live view of the results of a query as applied to grid data.
It also allows clients to register for notifications that are sent when the set of cache entries matching a query changes. Continuous queries are defined against a single map and does
not support aggregation operations. A query is applied as a filter against each individual cache entry when cache entries are inserted/updated/deleted to determine if
the client should be notified of a change to the result set.