[CASSANDRA-1984] Implement "check and set"

• Type: New Feature
• Status: Resolved
• Priority: Normal
• Resolution: Won't Fix
• Fix Version/s: 0.7.1
• Component/s: Feature/Lightweight Transactions
• Labels: LWT
• Assignee: Unassigned
• Reporter: Max Sanders
• Created: 13/Jan/11 22:59
• Updated: 25/Oct/19 13:10
• Resolved: 13/Jan/11 23:14

Description

When fetching data from cassandra you should ask for a hash value for the stored value. Then when updating a value it should be possible to submit this hash value and only update the data when the hash key is still the same.

This way you can be sure that the data was not changed on this node.

It is the same as the memcached CAS Feature.