Igniters,
I'm working on https://issues.apache.org/jira/browse/IGNITE-1355.
I want to hear a community opinion what should do Ignite in case when user
uses Affinity for nonexistent cache? Current implementation returns
AffinityProxy on a call of Ignite.affinity("nonexistent_cache") and
AffinityProxy throws NPE on a call of any method if cache has not been
created yet.
I see next possible decisions:
- Ignite.affinity("nonexistent_cache") can return 'null' instead of
AffinityProxy like Ignite does it for Ignite.cache("nonexistent_cache").
But it breaks backward compatibility.
- AffinityProxy methods can return a special value like 0 for
'partitions()' method and empty array for 'primaryPartitions(ClusterNode)'
method.
- AffinityProxy methods can throw Exception that cache does not exist.
I vote for the second one.
Thoughts?
Thanks,
-- Artem --
