hbase-shell/src/main/ruby/shell/commands/delete.rb

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module Shell
  module Commands
    class Delete < Command
      def help
        <<-EOF
Put a delete cell value at specified table/row/column and optionally
timestamp coordinates.  Deletes must match the deleted cell's
coordinates exactly.  When scanning, a delete cell suppresses older
versions. To delete a cell from  't1' at row 'r1' under column 'c1'
marked with the time 'ts1', do:

  hbase> delete 'ns1:t1', 'r1', 'c1', ts1
  hbase> delete 't1', 'r1', 'c1', ts1
  hbase> delete 't1', 'r1', 'c1', ts1, {VISIBILITY=>'PRIVATE|SECRET'}

The same command can also be run on a table reference. Suppose you had a reference
t to table 't1', the corresponding command would be:

  hbase> t.delete 'r1', 'c1',  ts1
  hbase> t.delete 'r1', 'c1',  ts1, {VISIBILITY=>'PRIVATE|SECRET'}
EOF
      end

      def command(table, row, column,
                  timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
        delete(table(table), row, column, timestamp, args)
      end

      def delete(table, row, column,
                 timestamp = org.apache.hadoop.hbase.HConstants::LATEST_TIMESTAMP, args = {})
        @start_time = Time.now
        table._delete_internal(row, column, timestamp, args, false)
      end
    end
  end
end

# Add the method table.delete that calls delete.delete
::Hbase::Table.add_shell_command('delete')