Data operation code

Data operation code is all about adding a record, deleting a record, and getting a single record. It will also help in scanning the table and listing all records.

Let's see how we can build our own function to perform various tasks:

public void addOneRecordToTable(String tableObjName, String rowKey,
String colFamName, String columnName, String data) throws Exception
{
  try
  {
    HTable tableObj = new HTable(configurationObj, tableObjName);
    Put put = new Put(Bytes.toBytes(rowKey));
    put.add(Bytes.toBytes(colFamName), Bytes.toBytes(columnName), Bytes
    .toBytes(data));
    tableObj.put(put);
  }
  catch (IOException exception)
  {
    exception.printStackTrace();
  }
}
public  void delRecordFromTable(String tableObjName, String rowKey) throws IOException
{
  HTable tableObj = new HTable(configurationObj, tableObjName);
  List<Delete>list = new ArrayList<Delete>();
  Delete delObj = new Delete(rowKey.getBytes());
  list.add(delObj);
  tableObj.delete...