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module Shell
  module Commands
    class Append < Command
      def help
        return <<-EOF
Appends a cell 'value' at specified table/row/column coordinates.

  hbase> append 't1', 'r1', 'c1', 'value', ATTRIBUTES=>{'mykey'=>'myvalue'}
  hbase> append 't1', 'r1', 'c1', 'value', {VISIBILITY=>'PRIVATE|SECRET'}

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

  hbase> t.append 'r1', 'c1', 'value', ATTRIBUTES=>{'mykey'=>'myvalue'}
  hbase> t.append 'r1', 'c1', 'value', {VISIBILITY=>'PRIVATE|SECRET'}
EOF
      end

      def command(table, row, column, value, args={})
        append(table(table), row, column, value, args)
      end

      def append(table, row, column, value, args={})
      	format_simple_command do
        	table._append_internal(row, column, value, args)
        end
      end
    end
  end
end

#add incr comamnd to Table
::Hbase::Table.add_shell_command("append")