messagestatisticsdaoimpljdbc.java

解觖java技术中后台无法上传数给的情况

/*
 * $Header: /cvsroot/mvnforum/mvnforum/src/com/mvnforum/db/jdbc/MessageStatisticsDAOImplJDBC.java,v 1.10 2006/04/14 17:05:26 minhnn Exp $
 * $Author: minhnn $
 * $Revision: 1.10 $
 * $Date: 2006/04/14 17:05:26 $
 *
 * ====================================================================
 *
 * Copyright (C) 2002-2006 by MyVietnam.net
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 * the footer of the pages MUST remain visible when the pages
 * are viewed on the internet or intranet.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
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 * Correspondence and Marketing Questions can be sent to:
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 * @author: Minh Nguyen  
 * @author: Mai  Nguyen  
 */
package com.mvnforum.db.jdbc;

import java.sql.*;

import com.mvnforum.db.DAOFactory;
import com.mvnforum.db.MessageStatisticsDAO;
import net.myvietnam.mvncore.db.DBUtils;
import net.myvietnam.mvncore.exception.*;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

public class MessageStatisticsDAOImplJDBC implements MessageStatisticsDAO {

    private static Log log = LogFactory.getLog(MessageStatisticsDAOImplJDBC.class);

    // this variable will support caching if cache for this class is needed
    private static boolean m_dirty = true;

    public MessageStatisticsDAOImplJDBC() {
    }

    protected static boolean isDirty() {
        return m_dirty;
    }

    protected static void setDirty(boolean dirty) {
        m_dirty = dirty;
    }

    /*
     * Included columns: FromID, ToID, MessageCreationDate, MessageAttachCount, MessageType,
     *                   MessageOption, MessageStatus
     * Excluded columns:
     */
    public void create(int fromID, int toID, Timestamp messageCreationDate,
                       int messageAttachCount, int messageType, int messageOption, int messageStatus)
        throws CreateException, DatabaseException, ForeignKeyNotFoundException {

        try {
            // @todo: modify the parameter list as needed
            // You may have to regenerate this method if the needed columns dont have attribute 'include'
            DAOFactory.getMemberDAO().findByPrimaryKey(fromID);
        } catch(ObjectNotFoundException e) {
            throw new ForeignKeyNotFoundException("Foreign key [FromID] refers to table 'Member' does not exist. Cannot create new MessageStatistics.");
        }

        try {
            // @todo: modify the parameter list as needed
            // You may have to regenerate this method if the needed columns dont have attribute 'include'
            DAOFactory.getMemberDAO().findByPrimaryKey(toID);
        } catch(ObjectNotFoundException e) {
            throw new ForeignKeyNotFoundException("Foreign key [ToID] refers to table 'Member' does not exist. Cannot create new MessageStatistics.");
        }

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("INSERT INTO " + TABLE_NAME + " (FromID, ToID, MessageCreationDate, MessageAttachCount, MessageType, MessageOption, MessageStatus)");
        sql.append(" VALUES (?, ?, ?, ?, ?, ?, ?)");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());

            statement.setInt(1, fromID);
            statement.setInt(2, toID);
            statement.setTimestamp(3, messageCreationDate);
            statement.setInt(4, messageAttachCount);
            statement.setInt(5, messageType);
            statement.setInt(6, messageOption);
            statement.setInt(7, messageStatus);

            if (statement.executeUpdate() != 1) {
                throw new CreateException("Error adding a row into table 'MessageStatistics'.");
            }
            m_dirty = true;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.create.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public void delete_inMember(int memberID)
        throws DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("DELETE FROM " + TABLE_NAME);
        sql.append(" WHERE (FromID = ?) OR (ToID = ?) ");

        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, memberID);
            statement.setInt(2, memberID);
            statement.executeUpdate();
            m_dirty = true;
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.delete_inMember.");
        } finally {
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inFromID(int fromID)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE FromID = ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, fromID);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inFromID.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inFromID.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inToID(int toID)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE ToID = ?");
        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, toID);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inToID.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inToID.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inFromID_supportTimestamp(int fromID, Timestamp from, Timestamp to)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE FromID = ?");
        sql.append(" AND MessageCreationDate >= ?");
        sql.append(" AND MessageCreationDate <= ?");

        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, fromID);
            statement.setTimestamp(2, from);
            statement.setTimestamp(3, to);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inFromID_supportTimestamp.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inFromID_supportTimestamp.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

    public int getNumberOfBeans_inToID_supportTimestamp(int toID, Timestamp from, Timestamp to)
        throws AssertionException, DatabaseException {

        Connection connection = null;
        PreparedStatement statement = null;
        ResultSet resultSet = null;
        StringBuffer sql = new StringBuffer(512);
        sql.append("SELECT Count(*)");
        sql.append(" FROM " + TABLE_NAME);
        sql.append(" WHERE ToID = ?");
        sql.append(" AND MessageCreationDate >= ?");
        sql.append(" AND MessageCreationDate <= ?");

        try {
            connection = DBUtils.getConnection();
            statement = connection.prepareStatement(sql.toString());
            statement.setInt(1, toID);
            statement.setTimestamp(2, from);
            statement.setTimestamp(3, to);
            resultSet = statement.executeQuery();
            if (!resultSet.next()) {
                throw new AssertionException("Assertion in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inToID_supportTimestamp.");
            }
            return resultSet.getInt(1);
        } catch(SQLException sqle) {
            log.error("Sql Execution Error!", sqle);
            throw new DatabaseException("Error executing SQL in MessageStatisticsDAOImplJDBC.getNumberOfBeans_inToID_supportTimestamp.");
        } finally {
            DBUtils.closeResultSet(resultSet);
            DBUtils.closeStatement(statement);
            DBUtils.closeConnection(connection);
        }
    }

}// end of class MessageStaticDAOImplJDBC