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ASF GitHub Bot logged work on BEAM-6820: ---------------------------------------- Author: ASF GitHub Bot Created on: 15/Mar/19 13:50 Start Date: 15/Mar/19 13:50 Worklog Time Spent: 10m Work Description: goldfishy commented on pull request #8069: [BEAM-6820] Cassandra object mapper abstraction URL: https://github.com/apache/beam/pull/8069 The current Cassandra source sink is tightly coupled to the Datastax Object Mapper. [This requires users](https://docs.datastax.com/en/developer/java-driver/3.1/manual/object_mapper/) of the sink to provide a POJO describing the table in Cassandra. Although the POJO is a easy and powerful way to describe the table it does requires users to always recompile the pipeline for each change in the table definition. I suggest adding a abstraction layer that allows users to inject their own mapper implementation. One example use would be a mapper that works with a generic [Row](https://beam.apache.org/releases/javadoc/2.4.0/org/apache/beam/sdk/values/Row.html) implementation rather than a compile-time POJO. This abstraction layer could be implemented by simply supplying a MapperFactory through the Sink/Source builder. ------------------------ Thank you for your contribution! Follow this checklist to help us incorporate your contribution quickly and easily: - [ ] [**Choose reviewer(s)**](https://beam.apache.org/contribute/#make-your-change) and mention them in a comment (`R: @username`). - [ ] Format the pull request title like `[BEAM-XXX] Fixes bug in ApproximateQuantiles`, where you replace `BEAM-XXX` with the appropriate JIRA issue, if applicable. This will automatically link the pull request to the issue. - [ ] If this contribution is large, please file an Apache [Individual Contributor License Agreement](https://www.apache.org/licenses/icla.pdf). 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To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 213779) Time Spent: 10m Remaining Estimate: 0h > Custom Row-Object mapper implementation for CassandraIO > ------------------------------------------------------- > > Key: BEAM-6820 > URL: https://issues.apache.org/jira/browse/BEAM-6820 > Project: Beam > Issue Type: Improvement > Components: io-java-cassandra > Reporter: Max Charas > Assignee: Max Charas > Priority: Minor > Time Spent: 10m > Remaining Estimate: 0h > > The current Cassandra source sink is tightly coupled to the Datastax Object > Mapper. [This requires > users|https://docs.datastax.com/en/developer/java-driver/3.1/manual/object_mapper/] > of the sink to provide a POJO describing the table in Cassandra. Although > the POJO is a easy and powerful way to describe the table it does requires > users to always recompile the pipeline for each change in the table > definition. > I suggest adding a abstraction layer that allows users to inject their own > mapper implementation. One example use would be a mapper that works with a > generic > [Row|https://beam.apache.org/releases/javadoc/2.4.0/org/apache/beam/sdk/values/Row.html] > implementation rather than a compile-time POJO. > This abstraction layer could be implemented by simply supplying a > MapperFactory through the Sink/Source builder. -- This message was sent by Atlassian JIRA (v7.6.3#76005)