[AVRO-1400] Introduce annotation to specify default values

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.7.5
• Fix Version/s: 1.7.6
• Component/s: java
• Labels: annotation features reflection schema
• Assignee: Doug Cutting
• Reporter: dennis lucero
• Created: 12/Nov/13 09:54
• Updated: 23/Jan/14 21:58
• Resolved: 11/Dec/13 21:17

Description

It would be nice if there was an annotation in org.apache.avro.reflect to specify default values for schemata derived reflectively, allowing for proper schema evolution.

I suggest the following:

@AvroDefault(1)
int someNum;

@Nullable
@AvroDefault(null)
AnotherRecord myRec;