[BEAM-6820] Custom Row-Object mapper implementation for CassandraIO

• Type: Improvement
• Status: Resolved
• Priority: P3
• Resolution: Fixed
• Fix Version/s: 2.12.0
• Component/s: io-java-cassandra
• Assignee: Max Charas
• Reporter: Max Charas
• Created: 13/Mar/19 10:02
• Updated: 16/May/20 13:22
• Resolved: 26/Mar/19 23:47

Description

The current Cassandra source sink is tightly coupled to the Datastax Object Mapper. This requires users 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 implementation rather than a compile-time POJO. 

This abstraction layer could be implemented by simply supplying a MapperFactory through the Sink/Source builder. 

Issue Links

• links to: GitHub Pull Request #8069