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https://issues.apache.org/jira/browse/FLINK-3319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15357129#comment-15357129
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Robert Thorman commented on FLINK-3319:
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I'll figure out the rebase and resubmit. Sorry its taking so long. I'm on
travel this week at the Hadoop Summit in San Jose, CA. I'll also create the
OrFilterFunctionTest class. Thanks for the help.
> Add or operator to CEP's pattern API
> ------------------------------------
>
> Key: FLINK-3319
> URL: https://issues.apache.org/jira/browse/FLINK-3319
> Project: Flink
> Issue Type: Improvement
> Components: CEP
> Affects Versions: 1.0.0
> Reporter: Till Rohrmann
> Assignee: Robert Thorman
> Priority: Minor
>
> Adding an {{or}} operator to CEP's pattern API would be beneficial. This
> would considerably extend the set of supported patterns. The {{or}} operator
> lets you define multiple succeeding pattern states for the next stage.
> {code}
> Pattern.begin("start").next("middle1").where(...).or("middle2").where(...)
> {code}
> In order to implement the {{or}} operator, one has to extend the {{Pattern}}
> class. Furthermore, the {{NFACompiler}} has to be extended to generate two
> resulting pattern states in case of an {{or}} operator.
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