Vladislav Pyatkov created IGNITE-28727:
------------------------------------------
Summary: Create internal API method to lock cache entry with
specific version
Key: IGNITE-28727
URL: https://issues.apache.org/jira/browse/IGNITE-28727
Project: Ignite
Issue Type: Improvement
Reporter: Vladislav Pyatkov
Assignee: Vladislav Pyatkov
h3. Motivation
In some cases we want to have a guarantee that no other operation splits
between a read and an update. This case is rather more interesting for SQL than
the cache API, where the key is always known.
Proposed API:
{code:title=IgniteInternalCache.java}
/**
* Acquires transactional lock for a cached object represented by the given
entry only if a current entry version
* is equal to the entry version.
*
* @param entry Entry whose key, value and version should be used.
* @param timeout Timeout in milliseconds to wait for lock to be acquired
* (\{@code '0'} for no expiration), \{@code -1} for immediate failure if
* lock cannot be acquired immediately).
* @return \{@code True} if lock was acquired with the same entry version.
* @throws IgniteCheckedException If lock acquisition resulted in an error.
*/
public boolean lock(CacheEntry<K, V> entry, long timeout) throws
IgniteCheckedException;
{code}
h3. Definition of done
The method is added
All guarantees are satisfied and confirmed by a bunch of tests.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
