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https://issues.apache.org/jira/browse/OAK-201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13420583#comment-13420583
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Julian Reschke commented on OAK-201:
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That would work; but wouldn't it be simpler if we just used constants for the
node type names using the known OAK prefixes? (and not use expanded names at
all here)
> NamespaceRegistry is very slow
> ------------------------------
>
> Key: OAK-201
> URL: https://issues.apache.org/jira/browse/OAK-201
> Project: Jackrabbit Oak
> Issue Type: Bug
> Reporter: Thomas Mueller
>
> The NamespaceRegistryImpl.getURI and getPrefix are called a lot, for example
> by NamePathMapperImpl.getOakName.
> The method doesn't do any caching, which is a problem because it has to read
> it each time from the repository. Even if it would do caching, it wouldn't
> help because it the method WorkspaceImpl.getNamespaceRegistry creates a new
> NamespaceRegistryImpl each time it is called. To allow caching of known
> mappings, the instance needs to be cached as well.
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