Chapter 4. The Grouping API

When using the Grouping API, JBoss Data Grid creates and uses the hash of the group instead of the hash of the key to determine which node will house the entry.

With the Grouping API, it is still important that each node can still use an algorithm to determine the owner of each key. For this purpose, the group cannot be manually specified and must be either intrinsic to the entry (generated by the key class) or extrinsic to the entry (generated by an external function).