Merge UUID to NodeId
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Key: JCR-1232
URL: https://issues.apache.org/jira/browse/JCR-1232
Project: Jackrabbit
Issue Type: Improvement
Components: jackrabbit-core
Reporter: Jukka Zitting
Priority: Minor
The current NodeId class is mostly just a wrapper around UUID, which causes two
objects to be instantiated for each node identifier that the system uses. The
memory and processing overhead is quite small, but given that there are tons of
NodeId instances it would be good to eliminate that overhead.
There is also lots of code that just converts UUIDs to NodeIds and vice versa.
We could simplify such code if we just used NodeId everywhere.
Also, we might want to open up the possibility of using non-UUID node
identifiers at some point in future, so it would make a lot of sense to remove
the NodeId.getUUID method and rely directly on NodeId and it's equals(),
hashCode(), and toString() methods in many places where we currently use UUIDs.
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