Coverage report

  %line %branch
org.apache.torque.adapter.DBMM
37% 
100% 

 1  
 package org.apache.torque.adapter;
 2  
 
 3  
 /*
 4  
  * Copyright 2001-2005 The Apache Software Foundation.
 5  
  *
 6  
  * Licensed under the Apache License, Version 2.0 (the "License")
 7  
  * you may not use this file except in compliance with the License.
 8  
  * You may obtain a copy of the License at
 9  
  *
 10  
  *     http://www.apache.org/licenses/LICENSE-2.0
 11  
  *
 12  
  * Unless required by applicable law or agreed to in writing, software
 13  
  * distributed under the License is distributed on an "AS IS" BASIS,
 14  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 15  
  * See the License for the specific language governing permissions and
 16  
  * limitations under the License.
 17  
  */
 18  
 
 19  
 import java.sql.Connection;
 20  
 import java.sql.SQLException;
 21  
 import java.sql.Statement;
 22  
 import java.util.Date;
 23  
 import java.text.SimpleDateFormat;
 24  
 
 25  
 /**
 26  
  * This is used in order to connect to a MySQL database using the MM
 27  
  * drivers.  Simply comment the above and uncomment this code below and
 28  
  * fill in the appropriate values for DB_NAME, DB_HOST, DB_USER,
 29  
  * DB_PASS.
 30  
  *
 31  
  * <P><A HREF="http://www.worldserver.com/mm.mysql/">
 32  
  * http://www.worldserver.com/mm.mysql/</A>
 33  
  * <p>"jdbc:mysql://" + DB_HOST + "/" + DB_NAME + "?user=" +
 34  
  * DB_USER + "&password=" + DB_PASS;
 35  
  *
 36  
  * @author <a href="mailto:jon@clearink.com">Jon S. Stevens</a>
 37  
  * @author <a href="mailto:bmclaugh@algx.net">Brett McLaughlin</a>
 38  
  * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
 39  
  * @version $Id: DBMM.java 239636 2005-08-24 12:38:09Z henning $
 40  
  */
 41  
 public class DBMM extends DB
 42  
 {
 43  
 
 44  
     /** A specialized date format for MySQL. */
 45  
     private static final String DATE_FORMAT = "yyyyMMddHHmmss";
 46  
 
 47  
     /**
 48  
      * Empty protected constructor.
 49  
      */
 50  
     protected DBMM()
 51  7
     {
 52  7
     }
 53  
 
 54  
     /**
 55  
      * This method is used to ignore case.
 56  
      *
 57  
      * @param in The string to transform to upper case.
 58  
      * @return The upper case string.
 59  
      */
 60  
     public String toUpperCase(String in)
 61  
     {
 62  0
         return in;
 63  
     }
 64  
 
 65  
     /**
 66  
      * This method is used to ignore case.
 67  
      *
 68  
      * @param in The string whose case to ignore.
 69  
      * @return The string in a case that can be ignored.
 70  
      */
 71  
     public String ignoreCase(String in)
 72  
     {
 73  10011
         return in;
 74  
     }
 75  
 
 76  
     /**
 77  
      * @see org.apache.torque.adapter.DB#getIDMethodType()
 78  
      */
 79  
     public String getIDMethodType()
 80  
     {
 81  3
         return AUTO_INCREMENT;
 82  
     }
 83  
 
 84  
     /**
 85  
      * Returns the SQL to get the database key of the last row
 86  
      * inserted, which in this case is <code>SELECT
 87  
      * LAST_INSERT_ID()</code>.
 88  
      *
 89  
      * @see org.apache.torque.adapter.DB#getIDMethodSQL(Object obj)
 90  
      */
 91  
     public String getIDMethodSQL(Object obj)
 92  
     {
 93  0
         return "SELECT LAST_INSERT_ID()";
 94  
     }
 95  
 
 96  
     /**
 97  
      * Locks the specified table.
 98  
      *
 99  
      * @param con The JDBC connection to use.
 100  
      * @param table The name of the table to lock.
 101  
      * @exception SQLException No Statement could be created or
 102  
      * executed.
 103  
      */
 104  
     public void lockTable(Connection con, String table) throws SQLException
 105  
     {
 106  0
         Statement statement = con.createStatement();
 107  0
         StringBuffer stmt = new StringBuffer();
 108  0
         stmt.append("LOCK TABLE ").append(table).append(" WRITE");
 109  0
         statement.executeUpdate(stmt.toString());
 110  0
     }
 111  
 
 112  
     /**
 113  
      * Unlocks the specified table.
 114  
      *
 115  
      * @param con The JDBC connection to use.
 116  
      * @param table The name of the table to unlock.
 117  
      * @exception SQLException No Statement could be created or
 118  
      * executed.
 119  
      */
 120  
     public void unlockTable(Connection con, String table) throws SQLException
 121  
     {
 122  0
         Statement statement = con.createStatement();
 123  0
         statement.executeUpdate("UNLOCK TABLES");
 124  0
     }
 125  
 
 126  
     /**
 127  
      * This method is used to chek whether the database natively
 128  
      * supports limiting the size of the resultset.
 129  
      *
 130  
      * @return True.
 131  
      */
 132  
     public boolean supportsNativeLimit()
 133  
     {
 134  0
         return true;
 135  
     }
 136  
 
 137  
     /**
 138  
      * This method is used to chek whether the database natively
 139  
      * supports returning results starting at an offset position other
 140  
      * than 0.
 141  
      *
 142  
      * @return True.
 143  
      */
 144  
     public boolean supportsNativeOffset()
 145  
     {
 146  0
         return true;
 147  
     }
 148  
 
 149  
     /**
 150  
      * This method is used to chek whether the database supports
 151  
      * limiting the size of the resultset.
 152  
      *
 153  
      * @return LIMIT_STYLE_MYSQL.
 154  
      */
 155  
     public int getLimitStyle()
 156  
     {
 157  4
         return DB.LIMIT_STYLE_MYSQL;
 158  
     }
 159  
 
 160  
     /**
 161  
      * This method overrides the JDBC escapes used to format dates
 162  
      * using a <code>DateFormat</code>.  As of version 2.0.11, the MM
 163  
      * JDBC driver does not implement JDBC 3.0 escapes.
 164  
      *
 165  
      * @param date the date to format
 166  
      * @return The properly formatted date String.
 167  
      */
 168  
     public String getDateString(Date date)
 169  
     {
 170  2
         char delim = getStringDelimiter();
 171  2
         return (delim + new SimpleDateFormat(DATE_FORMAT).format(date) + delim);
 172  
     }
 173  
 }

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