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https://issues.apache.org/jira/browse/CRUNCH-60?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthias Friedrich updated CRUNCH-60:
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Attachment: CRUNCH-60-Create-crunch-api-package-mafr-v1.patch
Patch (draft!) to move client-facing core abstractions out of the crunch module
into a new crunch-api module. Almost everything ended up in the base package, I
don't think there's a way to split it into subpackages without introducing
dependency cycles.
Open issues: I'm not quite sure what to do with the test package. There's also
a lot of stuff in CombineFn; I think we should move that somewhere else because
nothing in crunch-api needs it.
> Splitting the core crunch module
> --------------------------------
>
> Key: CRUNCH-60
> URL: https://issues.apache.org/jira/browse/CRUNCH-60
> Project: Crunch
> Issue Type: Bug
> Reporter: Vinod Kumar Vavilapalli
> Attachments: CRUNCH-60-Create-crunch-api-package-mafr-v1.patch
>
>
> It looks like the api is interspersed with the implementation details and
> libraries/utils a bit. How about:
> - An api module which only has the APIs that users need to code against
> -- Most of org.apache.crunch
> -- org.apache.crunch.types.*
> - A common/lib module
> -- package org.apache.crunch.fn
> -- some stuff like MapFn, FilterFn from org.apache.crunch package
> -- All of org.apache.crunch.lib.* that is not included in the other modules
> above and below
> -- org.apache.crunch.util
> -- org.apache.crunch.tool
> - A crunch-impl module where the rest of it resides.
> -- All of *impl* packages
> -- org.apache.crunch.hadoop.mapreduce.lib.jobcontrol
> -- org.apache.crunch.hadoop.mapreduce.lib.output
> -- org.apache.crunch.materialize?
> Also move org.apache.crunch.test to src/test/java.
> Need help on placing org.apache.crunch.io.* correctly.
> Note that despite all this, if necessary, we can choose to have a single
> artifact (jars etc) to avoid users the onus of importing multiple modules.
> Thoughts?
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