Igniters,
I've been working on the task that will let the user to retrieve version
related information for a particular Cache.Entry object.
All the details are here: https://issues.apache.org/jira/browse/IGNITE-946
VersionedEntry of a given Cache.Entry can be retrieved by a call to
'Cache.Entry.unwrap(VersionedEntry.class)'.
I've already fully supported 'unwrap' for Cache.Entry when it is
returned from:
- Cache.invoke();
- Cache.invokeAll();
- IgniteCache.randomEntry();
The following entry points are left:
- Cache.iterator();
- IgniteCache.localEntries().
However, I doubt that it makes sense to support these two last methods.
In my understanding a use case scenario of VersionedEntry is the
following: the user get a VersionedEntry for a particular key(s) using
Cache.invoke, keeps it and then compares with other VersionEntries for
the same key retrieved later.
I don't think that the user will iterate over a cache using
Cache.iterator() or IgniteCache.localEntries() in order to get a
version, especially in production.
What do you think? Do you see any other real life scenarios I'm missing?
--
Denis
