docmediatypedao.java

一个简单的公文管理系统

package com.jasson.business.system;

/**
 * <p>Title: DocMediaTypeDAO</p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003,by wingroup</p>
 * <p>Company: wingroup</p>
 * @author jarrywen
 * @version 1.0
 */

import java.io.*;
import java.sql.*;
import java.util.Properties;
import java.util.Collection;
import java.util.ArrayList;
import com.jasson.business.common.DbConn;

import com.jasson.common.*;

public class DocMediaTypeDAO {
	private int MediaTypeID;
	private String MediaTypeName;
	private String ActiveTag;
	public DocMediaTypeDAO( int MediaTypeID, String MediaTypeName, String ActiveTag ){
		this.MediaTypeID = MediaTypeID;
		this.MediaTypeName = MediaTypeName;
		this.ActiveTag = ActiveTag;
	}
	public DocMediaTypeDAO() {
	}
	public int getMediaTypeID(){
		return MediaTypeID;
	}
	public void setMediaTypeID(int MediaTypeID){
		this.MediaTypeID = MediaTypeID;
	}
	public String getMediaTypeName(){
		return MediaTypeName;
	}
	public void setMediaTypeName(String MediaTypeName){
		this.MediaTypeName = MediaTypeName;
	}
	public String getActiveTag(){
		return ActiveTag;
	}
	public void setActiveTag(String ActiveTag){
		this.ActiveTag = ActiveTag;
	}
	public static DocMediaTypeDAO find(int MediaTypeID){
		ExtendString ExStr = new ExtendString();
		Connection con = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		DocMediaTypeDAO result = null;
		try {
			DbConn dbConn = new DbConn();
			con = dbConn.getConnection();
			ps = con.prepareStatement("select  MediaTypeID, MediaTypeName, ActiveTag from TMediaType where MediaTypeID = ?");
			ps.setInt(1, MediaTypeID);
			rs = ps.executeQuery();
			if (rs.next()) {
				result = new DocMediaTypeDAO( rs.getInt(1), ExStr.dbDecode(rs.getString(2)), ExStr.dbDecode(rs.getString(3)));
			}
			rs.close();
			rs = null;
			ps.close();
			ps = null;
			con.close();
			con = null;
		}
		catch (SQLException sqlException) {
			System.out.println(sqlException.getMessage());
		}
		finally {
			if (rs != null) {
				try {
					rs.close();
				}
				catch (SQLException sqlException) {
				}
				rs = null;
			}
			if (ps != null) {
				try {
					ps.close();
				}
				catch (SQLException sqlException) {
				}
				ps = null;
			}
			if (con != null) {
				try {
					con.close();
				}
				catch (SQLException sqlException) {
				}
				con = null;
			}
		}
		return result;
	}
	public static DocMediaTypeDAO[] findAll() {
		ExtendString ExStr = new ExtendString();
		Connection con = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		DocMediaTypeDAO result = null;
		Collection results = new ArrayList();
		try {
			DbConn dbConn = new DbConn();
			con = dbConn.getConnection();
			ps = con.prepareStatement("select  MediaTypeID, MediaTypeName, ActiveTag from TMediaType");
			rs = ps.executeQuery();
			while (rs.next()) {
				result = new DocMediaTypeDAO( rs.getInt(1), ExStr.dbDecode(rs.getString(2)), ExStr.dbDecode(rs.getString(3)));
				results.add(result);
			}
			rs.close();
			rs = null;
			ps.close();
			ps = null;
			con.close();
			con = null;
		}
		catch (SQLException sqlException) {
			System.out.println(sqlException.getMessage());
		}
		finally {
			if (rs != null) {
				try {
					rs.close();
				}
				catch (SQLException sqlException) {
				}
				rs = null;
			}
			if (ps != null) {
				try {
					ps.close();
				}
				catch (SQLException sqlException) {
				}
				ps = null;
			}
			if (con != null) {
				try {
					con.close();
				}
				catch (SQLException sqlException) {
				}
				con = null;
			}
		}
		return (DocMediaTypeDAO[])results.toArray(new DocMediaTypeDAO[0]);
	}
	public long insert() {
		Connection con = null;
		PreparedStatement ps = null;
		ResultSet rs = null;
		long lngSQLReturn = -1;
		long lngReturn = -1;
		try {
			DbConn dbConn = new DbConn();
			con = dbConn.getConnection();
			if (con != null) {
				ps = con.prepareStatement("select MAX(MediaTypeID) from TMediaType");
				rs = ps.executeQuery();
				if (rs.next()){
					int maxMediaTypeID = rs.getInt(1);
					this.setMediaTypeID(maxMediaTypeID);
				}
				ps = con.prepareStatement("insert into TMediaType ( MediaTypeID, MediaTypeName, ActiveTag) values ( ?, ?, ?)");
				ps.setInt(1, getMediaTypeID());
				ps.setString(2, getMediaTypeName());
				ps.setString(3, getActiveTag());
				lngSQLReturn = ps.executeUpdate();
				lngReturn = lngSQLReturn;
			}
			rs.close();
			rs = null;
			ps.close();
			ps = null;
			con.close();
			con = null;
		}
		catch (SQLException sqlException) {
			System.out.println(sqlException.getMessage());
		}
		finally {
			if (rs != null) {
				try {
					rs.close();
				}
				catch (SQLException sqlException) {
				}
				rs = null;
			}
			if (ps != null) {
				try {
					ps.close();
				}
				catch (SQLException sqlException) {
				}
				ps = null;
			}
			if (con != null) {
				try {
					con.close();
				}
				catch (SQLException sqlException) {
				}
				con = null;
			}
		}
		return lngReturn;
	}
	public boolean delete(int MediaTypeID) {
		Connection con = null;
		PreparedStatement ps = null;
		boolean blnReturn = false;
		try {
			DbConn dbConn = new DbConn();
			con = dbConn.getConnection();
			if (con != null) {
				ps = con.prepareStatement("delete TMediaType  where MediaTypeID = ?");
				ps.setInt(1, MediaTypeID);
				blnReturn = (ps.executeUpdate() == 1);
				ps.close();
			}
			con.close();
		}
		catch (SQLException sqlException) {
			System.out.println(sqlException.getMessage());
		}
		finally {
			if (ps != null) {
				try {
					ps.close();
				}
				catch (SQLException sqlException) {
				}
				ps = null;
			}
			if (con != null) {
				try {
					con.close();
				}
				catch (SQLException sqlException) {
				}
				con = null;
			}
		}
		return blnReturn;
	}
	public boolean update() {
		Connection con = null;
		PreparedStatement ps = null;
		boolean blnReturn = false;
		try {
			DbConn dbConn = new DbConn();
			con = dbConn.getConnection();
			if (con != null) {
				ps = con.prepareStatement("update TMediaType set  MediaTypeID = ?, MediaTypeName = ?, ActiveTag = ? where MediaTypeID = ?");
				ps.setInt(1, getMediaTypeID());
				ps.setString(2, getMediaTypeName());
				ps.setString(3, getActiveTag());
				ps.setInt(4, getMediaTypeID());
				blnReturn = (ps.executeUpdate() == 1);
				ps.close();
			}
			con.close();
		}
		catch (SQLException sqlException) {
			System.out.println(sqlException.getMessage());
		}
		finally {
			if (ps != null) {
				try {
					ps.close();
				}
				catch (SQLException sqlException) {
				}
				ps = null;
			}
			if (con != null) {
				try {
					con.close();
				}
				catch (SQLException sqlException) {
				}
				con = null;
			}
		}
		return blnReturn;
	}
}