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https://issues.apache.org/jira/browse/BEAM-498?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15410192#comment-15410192
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ASF GitHub Bot commented on BEAM-498:
-------------------------------------
GitHub user kennknowles opened a pull request:
https://github.com/apache/incubator-beam/pull/800
[BEAM-498] Add OldDoFn -> DoFn adapter and expose raw DoFn in ParDo
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---
Previously, `ParDo.of(DoFn)` would immediately wrap it into an `OldDoFn` so
the new `DoFn` could not be recovered, since
After this change, the new `DoFn` is temporarily available via
`#getNewFn()`, which will eventually overwrite `#getFn()`. When `ParDo` is
instantiated via `ParDo.of(OldDoFn)`, a wrapper in the reverse direction will
create a new `DoFn` that can be accessed via the same method. So a `ParDo`
transform temporarily always carries both, just so one need not reason about
which is present.
This allows consumers of the `fn` inside a `ParDo` to being porting their
logic to unconditionally use `DoFn`.
R: @bjchambers
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kennknowles/incubator-beam ParDoTest
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/800.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #800
----
commit 22e629d3ae647b0a32aa8367a0e711e44c7ce31a
Author: Kenneth Knowles <k...@google.com>
Date: 2016-08-05T22:21:23Z
Add OldDoFn -> DoFn adapter and expose raw DoFn in ParDo
Previously, ParDo.of(DoFn) would immediately wrap it into
an OldDoFn so the new DoFn could not be recovered, since
After this change, the new DoFn is temporarily available
via #getNewFn(), which will eventually overwrite #getFn().
When ParDo is instantiated via ParDo.of(OldDoFn), a wrapper
in the reverse direction will create a new DoFn that can
be accessed via the same method. So a ParDo transform
temporarily always carries both.
----
> Make DoFnWithContext the new DoFn
> ---------------------------------
>
> Key: BEAM-498
> URL: https://issues.apache.org/jira/browse/BEAM-498
> Project: Beam
> Issue Type: New Feature
> Components: sdk-java-core
> Reporter: Kenneth Knowles
> Assignee: Kenneth Knowles
>
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