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https://issues.apache.org/jira/browse/OPENJPA-128?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12471195
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Patrick Linskey commented on OPENJPA-128:
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We could also do this by specifying named queries in the DataCacheWarmUp
string, and those named queries could have query hints to control ranging.
> Automatic cache pre-fill on server start
> ----------------------------------------
>
> Key: OPENJPA-128
> URL: https://issues.apache.org/jira/browse/OPENJPA-128
> Project: OpenJPA
> Issue Type: New Feature
> Reporter: Patrick Linskey
>
> It'd be nice to have some means to automatically pre-fill the cache when a
> node starts up, either by copying from a different node or from a serialized
> image on disk, or by issuing some pre-specified queries. I really like the
> idea of just letting the user specify something like so:
> <property key="openjpa.DataCacheWarmUp" value="\"SELECT p FROM Person p\",
> \"SELECT p FROM Product p ORDER BY p.salesRank\""/>
> Although in that last example, we'd really want some way to specify a bit
> more detail about which pages of the data to use, as you would in
> single-string JDOQL.
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