[jboss-jira] [JBoss JIRA] Commented: (JBCACHE-1082) Optimise nodes for single elements
[ http://jira.jboss.com/jira/browse/JBCACHE-1082?page=comments#action_12416117 ]
Manik Surtani commented on JBCACHE-1082:
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Some comments by genman:
"It'd be nice if there was a canonical key object though. Something that could be
optimally serialized and deserialized as a single byte using the existing CacheMarshaller.
Maybe like have something like:
Code:
public interface Node {
private enum Key { KEY; }
/** For nodes that store a single value, use this as the key */
Object key = KEY;
... node methods here
}
"enum" is good for creating singleton instances."
Optimise nodes for single elements
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Key: JBCACHE-1082
URL: http://jira.jboss.com/jira/browse/JBCACHE-1082
Project: JBoss Cache
Issue Type: Feature Request
Security Level: Public(Everyone can see)
Affects Versions: 2.0.0.CR1
Reporter: Manik Surtani
Assigned To: Mircea Markus
Fix For: 3.0.0
Attachments: ReplicatedPojoPerfTest.java, UnversionedNode.patch.txt
Many use cases just place a single object in a Node. Rather than going through the
memory and performance penalties of using Maps for a single entry, we should:
1) Create a reference to 2 Objects for key and value, as well as a Map.
2) Only initialise/construct the Map if Node.putAll() is called, or when Node.put() is
called with a second key/value pair
3) Otherwise just hold the key/value pair as direct object refs.
Would affect UnversionedNode and WorkspaceNodeImpl.
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