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@InterfaceAudience.Private public interface ReversibleCellScanner
An extension of CellScanner indicating the scanner supports iterating backwards through cells.
Note: This was not added to suggest that HBase should support client facing reverse Scanners,
but
because some CellSearcher implementations, namely PrefixTree, need a method of backing
up if the positionAt(..) method goes past the requested cell.
| Method Summary | |
|---|---|
boolean |
previous()
Try to position the scanner one Cell before the current position. |
boolean |
previousRow(boolean endOfRow)
Try to position the scanner in the row before the current row. |
| Methods inherited from interface org.apache.hadoop.hbase.CellScanner |
|---|
advance, current |
| Method Detail |
|---|
boolean previous()
CellScannerPosition.BEFORE_FIRSTboolean previousRow(boolean endOfRow)
endOfRow - true for the last cell in the previous row; false for the first cell
CellScannerPosition.BEFORE_FIRST
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