[
https://issues.apache.org/jira/browse/NUTCH-589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Lewis John McGibbney updated NUTCH-589:
---------------------------------------
Fix Version/s: 1.7
> Hierarchical Classloaders
> -------------------------
>
> Key: NUTCH-589
> URL: https://issues.apache.org/jira/browse/NUTCH-589
> Project: Nutch
> Issue Type: Improvement
> Affects Versions: 0.9.0
> Reporter: Ryan Levering
> Priority: Minor
> Fix For: 1.7
>
>
> Currently the Nutch plugin classloader flattens all the jars from a plugins'
> dependencies and instantiates a new classloader for each plugin. I think it
> would be better to create a hierarchical classloader chain. Currently
> plugins can't pass objects from a common plugin to one another because the
> objects are created using different classloaders. Nutch currently avoids
> this by only using interfaces from a common classloader to pass objects
> between plugins, but I can't see the harm in improving the plugin
> classloader. It would require a change to PluginDescription and
> PluginClassLoader in order to override ClassLoader to maintain the export
> filter functionality that currently exists.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
