[AVRO-989] Java: Improve Builder performance in Specific API

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: java
• Assignee: Unassigned
• Reporter: Scott Carey
• Created: 05/Jan/12 23:03
• Updated: 24/Jan/12 22:15

Description

The Specific API generates Builder objects for each record. This builder uses a boolean[] to store flags for each field to indicate whether the field is set or not.

This is not space efficient, a boolean[] takes 16 bytes plus one byte per field, rounded up to the nearest 8 byte interval.

This can be improved on by using BitSet for large records, and bitmasks on an int for records with less than 32 fields.