GitHub user kl0u opened a pull request:
https://github.com/apache/flink/pull/3761
Make optional available to all patterns and times() eager by default and
allow allowCombinations().
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You can merge this pull request into a Git repository by running:
$ git pull https://github.com/kl0u/flink cep-times-combinations
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/flink/pull/3761.patch
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This closes #3761
----
commit b7f71fb5be49744859e6d75d78cf2610171ab1d4
Author: kl0u <kklou...@gmail.com>
Date: 2017-04-04T15:45:34Z
[FLINK-6248] [cep] Make the optional() available to all offered patterns.
Allow all patterns to be optional in a pattern sequence.
Singleton becomes simply optional, times(X) transforms from
"exactly X" to "0 or X", and "one or more" becomes "zero or more".
commit adb88e8d30655bdf6d17bd59fd2a5cb584f87d10
Author: kl0u <kklou...@gmail.com>
Date: 2017-04-21T17:59:43Z
[FLINK-6356] [cep] Make times() eager by default and allow
allowCombinations().
By default, the times() quantifier operates in eager mode and the
user can disable eagerness by calling .allowCombinations().
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