[HBASE-9334] Convert KeyValue to Cell in hbase-client module - Filters

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.95.2
• Component/s: Client
• Hadoop Flags: Reviewed

Release Note

The 'KeyValue Filter#getNextKeyHint(KeyValue) throws IOException;' method has been deprecated. Filters should now override 'Cell Filter#getNextCellHint(final Cell) throws IOException' method instead.
The 'Filter#getFilterRow(List<KeyValue>) method has been deprecated. Filters should now override 'Cell Filter#filterRowCells(List<Cell>)' method instead.
The 'Filter#transform(KeyValue) method has been deprecated. Filters should now override 'Cell Filter#transformCell(Cell)' method instead.

Shims have been added to support older filter derived from FilterBase but this incurs a performance penalty.

 

• Tags: Phoenix
• Assignee: Jonathan Hsieh
• Reporter: Jonathan Hsieh
• Created: 24/Aug/13 23:52
• Updated: 09/Sep/13 18:01
• Resolved: 30/Aug/13 20:31

Description

The goal is is to remove KeyValue from the publicly exposed API and require clients to use the cleaner mroe encapsulated Cell API instead. For filters, this affects #filterKeyValue, #transform, #filterrow, and #getNextKeyHint.

Since Cell is a base interface for KeyValue, changing these means that 0.94 apps may need a recompile but probably no modifications.