[HBASE-14255] Simplify Cell creation post 1.0

• Type: Improvement
• Status: Closed
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: 1.0.0, 2.0.0
• Fix Version/s: 2.0.0-alpha-3, 2.0.0
• Component/s: Client
• Labels: beginner
• Tags: beginner
• Assignee: Unassigned
• Reporter: Lars George
• Created: 19/Aug/15 14:31
• Updated: 01/Jul/22 20:58
• Resolved: 28/Aug/17 06:37

Description

After the switch to the new Cell based client API, and making KeyValue private (but especially as soon as DBB backed Cells land) it is rather difficult to create a Cell instance. I am using this now:

 @Override
  public void postGetOp(ObserverContext<RegionCoprocessorEnvironment> e,
    Get get, List<Cell> results) throws IOException {
    Put put = new Put(get.getRow());
    put.addColumn(get.getRow(), FIXED_COLUMN, Bytes.toBytes(counter.get()));
    CellScanner scanner = put.cellScanner();
    scanner.advance();
    Cell cell = scanner.current();
    LOG.debug("Adding fake cell: " + cell);
    results.add(cell);
  }

That is, I have to create a Put instance to add a cell and then retrieve its instance. The KeyValue methods are private now and should not be used. Create a CellBuilder helper?

Issue Links

• relates to: HBASE-18519 Use builder pattern to create cell