[SPARK-40657] Add support for compiled classes (Java classes)

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.4.0
• Component/s: Protobuf, Structured Streaming
• Epic Link: Protobuf Support
• Assignee: Raghu Angadi
• Reporter: Raghu Angadi
• Created: 04/Oct/22 20:57
• Updated: 17/Nov/22 02:25
• Resolved: 21/Oct/22 06:47

Description

For some users, it is more convenient to provide compiled classes rather than a descriptor file. 

We can support java compiled classes. Python could also use the same since all the processing happens in Scala.

Supporting python compiled classes is out-of-scope for this. It is not clear how well we can support that, short of using python UDF. 

Issue Links

• links to: [Github] Pull Request #38286 (rangadi)
• links to: [Github] Pull Request #38286 (rangadi)
• links to: [Github] Pull Request #38384 (rangadi)
• links to: [Github] Pull Request #38384 (rangadi)
• links to: [Github] Pull Request #38680 (rangadi)