GitHub user kennknowles opened a pull request:
https://github.com/apache/incubator-beam/pull/385
Various fixes surrounding OutputTimeFn
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These are some bugs left behind by changes to `OutputTimeFn`.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kennknowles/incubator-beam OutputTimeFn
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-beam/pull/385.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 #385
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commit a20786d42b8707504bfc1ffc71f8af71843cfcd6
Author: Kenneth Knowles <[email protected]>
Date: 2016-05-24T20:06:31Z
Improve the inheritance API for OutputTimeFn
Previously, OutputTimeFn.Defaults enforced that any subclass *could not*
return true for dependsOnlyOnWindow(), to encourage such subclasses to
extend OutputTimeFn.DependsOnlyOnWindow. Unfortunately, this is at odds
with compositional style, where all methods need to be forwarded.
Further, OutputTimeFn itself was only instantiable via one of these
subclasses, so there was no way to implement a proper forwarding.
After this change, the API from OutputTimeFn to its subclasses is
that of a simpler abstract superclass, and Defaults no longer restricts
its subclasses.
Note that we intend to remove OutputTimeFn as a userland function anyhow,
replacing it with an enum and OutputTimeFn implementations in runners/core,
so this is low risk. It is just to unblock some current work.
commit d94a6f15cf9f606495f5dfb1723333cfba5217f9
Author: Kenneth Knowles <[email protected]>
Date: 2016-05-24T20:10:38Z
Correctly forward dependsOnlyOnWindow(), etc, in WindowingStrategy
Previously, WindowingStrategy contained an implemenation of OutputTimeFn
that did not properly forward these important methods.
commit 55aae464530414f6e3ebe1103c32e39e6fc98a6f
Author: Kenneth Knowles <[email protected]>
Date: 2016-05-24T20:11:40Z
Fixes to timestamps in GroupAlsoByWindowsProperties
These properties had poor test coverage, so their timestamps were not
updated alongside the new default for OutputTimeFn.
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