/*
    *
    * The DbUnit Database Testing Framework
    * Copyright (C)2002-2004, DbUnit.org
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  
  package org.dbunit.database.statement;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.dbunit.dataset.ITable;
  import org.dbunit.dataset.datatype.DataType;
  import org.dbunit.dataset.datatype.TypeCastException;
  
  import java.sql.Connection;
  import java.sql.SQLException;
  
  /**
   * @author Manuel Laflamme
   * @version $Revision$
   * @since Mar 16, 2002
  */
  public class PreparedBatchStatement extends AbstractPreparedBatchStatement
  {
  
      /**
       * Logger for this class
       */
      private static final Logger logger = LoggerFactory.getLogger(PreparedBatchStatement.class);
  
      private int _index;
  
      PreparedBatchStatement(String sql, Connection connection)
              throws SQLException
      {
          super(sql, connection);
          _index = 0;
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // IPreparedBatchStatement interface
  
      public void addValue(Object value, DataType dataType)
              throws TypeCastException, SQLException
      {
          logger.debug("addValue(value={}, dataType={}) - start", value, dataType);
  
          // Special NULL handling
          if (value == null || value == ITable.NO_VALUE)
          {
              String sqlTypeName = dataType.getSqlTypeName();
              if (sqlTypeName == null) {
                  _statement.setNull(++_index, dataType.getSqlType());
              } else {
                  _statement.setNull(++_index, dataType.getSqlType(), sqlTypeName);
              }
              return;
          }
  
          dataType.setSqlValue(value, ++_index, _statement);
      }
  
      public void addBatch() throws SQLException
      {
          logger.debug("addBatch() - start");
  
          _statement.addBatch();
          _index = 0;
      }
  
      public int executeBatch() throws SQLException
      {
          logger.debug("executeBatch() - start");
  
          int[] results = _statement.executeBatch();
          int result = 0;
          for (int i = 0; i < results.length; i++)
          {
              result += results[i];
          }
          return result;
      }
  
     public void clearBatch() throws SQLException
     {
         logger.debug("clearBatch() - start");
         _statement.clearBatch();
     }
 }