[IGNITE-5597] Wrong javadoc in Affinity and AffinityFunction for REPLICATED cache

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7
• Fix Version/s: 2.3
• Labels: javadoc
• Assignee: Andrei Yakushin
• Reporter: Evgenii Zhuravlev
• Created: 27/Jun/17 14:21
• Updated: 28/Aug/17 16:38
• Resolved: 13/Jul/17 13:03

Description

RendezvousAffinityFunction.getPartitions() Javadoc says:

     * Note that for fully replicated caches this method should always
     * return {@code 1}.

but it's not true, it works the same as PARTITIONED cache.

Affinity.mapKeyToNode(K key) javadoc says:

     * <li>
     *      For fully replicated caches first node ID returned by {@link AffinityFunction}
     *      is returned.
     * </li>
     * <li>For partitioned caches, primary node for the given key is returned.</li>

it looks confusing, while REPLICATED cache has primary nodes for keys as PRATITIONED.

Also,

* Provides affinity information to detect which node is primary and which nodes are
 * backups for a partitioned cache.

Affinity matter for REPLICATED cache too.