Create a stage for filtering out objects based on a predicate
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Key: SANDBOX-265
URL: https://issues.apache.org/jira/browse/SANDBOX-265
Project: Commons Sandbox
Issue Type: Improvement
Components: Pipeline
Affects Versions: Nightly Builds
Environment: All
Reporter: Matt Sanford
Fix For: Nightly Builds
Attachments: filter_stage.patch
Pipeline stage to filter out objects based on some criteria. This can be done
today by writing a stage class with a conditional emit call. As with functors
and other predicate classes this new stage aims to simplify the coding of
simple filters. I will be attaching the classes and tests after I submit this.
The only filter included is generic and provided as an example. We have been
using this filter mechanism with custom filter classes to make fairly complex
object flows via configuration alone allowing for great flexibility and no need
to build any new code or jars.
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