code: public void deleteByColumn(String schemaName, String tableName, String columnName, Object columnValue)
      {
          StringBuffer query = new StringBuffer();
  
          query.append("DELETE FROM ").append(getFromClause(schemaName, tableName)).append(" WHERE ").append(columnName)
                  .append("=").append("'").append(columnValue).append("'");
  
          StatelessSession s = getStatelessSession();
  
          Transaction tx = onBegin();
          onNativeUpdate(query.toString(), null);
          onCommit(tx);
  
      }
docs: /*
  (non-Javadoc)
  
  @see com.impetus.kundera.client.Client#deleteByColumn(java.lang.String,
  java.lang.String, java.lang.Object)