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https://issues.apache.org/jira/browse/OAK-8209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814325#comment-16814325
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Alex Deparvu edited comment on OAK-8209 at 4/10/19 10:54 AM:
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bq. The root in SessionDelegate is final. That is, the ReadWriteNodeTypeManager
can just as well remember the Tree.
I think this is not entirely correct. The delegate can call Root#rebase (or
Root#refresh) which can invalidate the tree:
{noformat}
Rebase this root instance to the latest revision. After a call to this method,
trees obtained through getTree(String) may become non existing.
{noformat}
I think you could work around this by setting it to null in {{refresh()}}.
was (Author: alex.parvulescu):
bq. The root in SessionDelegate is final. That is, the ReadWriteNodeTypeManager
can just as well remember the Tree.
I think this is not entirely correct. The delegate can call Root#rebase which
can invalidate the tree:
{noformat}
Rebase this root instance to the latest revision. After a call to this method,
trees obtained through getTree(String) may become non existing.{noformat}
I think you could work around this by setting it to null in {{refresh()}}.
> Improve Node.isNodeType(String) performance
> -------------------------------------------
>
> Key: OAK-8209
> URL: https://issues.apache.org/jira/browse/OAK-8209
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: jcr
> Reporter: Marcel Reutegger
> Assignee: Marcel Reutegger
> Priority: Minor
>
> Profiling an application running on Oak showed calls to
> {{Node.isNodeType(String)}} as one of the hot spots. While it may be possible
> to reduce those calls there's probably also some potential in optimizing the
> implementation.
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