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https://issues.apache.org/jira/browse/BEAM-2445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Xu Mingmin reassigned BEAM-2445:
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Assignee: (was: Xu Mingmin)
> DSL SQL to use service locator pattern to automatically register UDFs
> ---------------------------------------------------------------------
>
> Key: BEAM-2445
> URL: https://issues.apache.org/jira/browse/BEAM-2445
> Project: Beam
> Issue Type: Improvement
> Components: dsl-sql
> Reporter: Luke Cwik
> Priority: Minor
> Labels: dsl_sql_merge
>
> Use a service locator pattern to find UDFs that can be registered. The
> service loader can be used to register UDFs for standard functions via DSL
> SQL, additional UDFs registered by third party libraries, and end user
> created UDFs.
> Example ServiceLoader usage within Apache Beam to find coder providers:
> https://github.com/apache/beam/blob/7126fdc6ee5671e99a2dede3f25ba616aa0e8fa4/sdks/java/core/src/main/java/org/apache/beam/sdk/coders/CoderRegistry.java#L147
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