Coverage report

  %line %branch
org.apache.torque.adapter.DBInterbase
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 1  
 package org.apache.torque.adapter;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import java.sql.Connection;
 23  
 import java.sql.SQLException;
 24  
 import java.sql.Statement;
 25  
 import java.util.Date;
 26  
 import java.text.SimpleDateFormat;
 27  
 
 28  
 /**
 29  
  * This code should be used for an Interbase database pool.
 30  
  *
 31  
  * @author <a href="mailto:frank@opticode.co.za">Frank Conradie</a>
 32  
  * @version $Id: DBInterbase.java 476550 2006-11-18 16:08:37Z tfischer $
 33  
  */
 34  0
 public class DBInterbase extends AbstractDBAdapter
 35  
 {
 36  
     /**
 37  
      * Serial version
 38  
      */
 39  
     private static final long serialVersionUID = -6709312389168248070L;
 40  
 
 41  
     /**
 42  
      * The format in which interbase expects dates (with time).
 43  
      */
 44  
     private static final String DATE_FORMAT = "yyyy-MM-dd HH:MM:ss";
 45  
 
 46  
     /**
 47  
      * This method is used to ignore case.
 48  
      *
 49  
      * @param in The string to transform to upper case.
 50  
      * @return The upper case string.
 51  
      */
 52  
     public String toUpperCase(String in)
 53  
     {
 54  0
         return new StringBuffer("UPPER(").append(in).append(")").toString();
 55  
     }
 56  
 
 57  
     /**
 58  
      * This method is used to ignore case.
 59  
      *
 60  
      * @param in The string whose case to ignore.
 61  
      * @return The string in a case that can be ignored.
 62  
      */
 63  
     public String ignoreCase(String in)
 64  
     {
 65  0
         return new StringBuffer("UPPER(").append(in).append(")").toString();
 66  
     }
 67  
 
 68  
     /**
 69  
      * This method is used to ignore case in an ORDER BY clause.
 70  
      * Usually it is the same as ignoreCase, but some databases
 71  
      * (Interbase for example) does not use the same SQL in ORDER BY
 72  
      * and other clauses.
 73  
      *
 74  
      * @param in The string whose case to ignore.
 75  
      * @return The string in a case that can be ignored.
 76  
      */
 77  
     public String ignoreCaseInOrderBy(String in)
 78  
     {
 79  0
         return in;
 80  
     }
 81  
 
 82  
     /**
 83  
      * @see org.apache.torque.adapter.DB#getIDMethodType()
 84  
      */
 85  
     public String getIDMethodType()
 86  
     {
 87  0
         return NO_ID_METHOD;
 88  
     }
 89  
 
 90  
     /**
 91  
      * @see org.apache.torque.adapter.DB#getIDMethodSQL(Object obj)
 92  
      */
 93  
     public String getIDMethodSQL(Object obj)
 94  
     {
 95  0
         return null;
 96  
     }
 97  
 
 98  
     /**
 99  
      * Locks the specified table.
 100  
      *
 101  
      * @param con The JDBC connection to use.
 102  
      * @param table The name of the table to lock.
 103  
      * @exception SQLException No Statement could be created or executed.
 104  
      */
 105  
     public void lockTable(Connection con, String table) throws SQLException
 106  
     {
 107  0
         Statement statement = con.createStatement();
 108  
 
 109  0
         StringBuffer stmt = new StringBuffer();
 110  0
         stmt.append("SET TRANSACTION ")
 111  
                 .append("ISOLATION LEVEL READ COMMITTED ")
 112  
                 .append("NO RECORD_VERSION WAIT ")
 113  
                 .append("RESERVING ")
 114  
                 .append(table)
 115  
                 .append(" FOR PROTECTED WRITE");
 116  
 
 117  0
         statement.executeQuery(stmt.toString());
 118  0
     }
 119  
 
 120  
     /**
 121  
      * Unlocks the specified table.
 122  
      *
 123  
      * @param con The JDBC connection to use.
 124  
      * @param table The name of the table to unlock.
 125  
      * @exception SQLException No Statement could be created or executed.
 126  
      */
 127  
     public void unlockTable(Connection con, String table) throws SQLException
 128  
     {
 129  
         // Tables in Interbase are unlocked when a commit is issued.
 130  
         // The user may have issued a commit but do it here to be
 131  
         // sure.
 132  0
         con.commit();
 133  0
     }
 134  
 
 135  
 
 136  
     /**
 137  
      * This method overrides the JDBC escapes used to format dates
 138  
      * using a <code>DateFormat</code>.  As of version 2.0.11, the MM
 139  
      * JDBC driver does not implement JDBC 3.0 escapes.
 140  
      *
 141  
      * @param date the date to format
 142  
      * @return The properly formatted date String.
 143  
      */
 144  
     public String getDateString(Date date)
 145  
     {
 146  0
         char delim = getStringDelimiter();
 147  0
         return (delim + new SimpleDateFormat(DATE_FORMAT).format(date) + delim);
 148  
     }
 149  
 
 150  
     /**
 151  
      * This method is for the SqlExpression.quoteAndEscape rules.  The rule is,
 152  
      * any string in a SqlExpression with a BACKSLASH will either be changed to
 153  
      * "\\" (if the method returns true) or left as "\" (if the method returns
 154  
      * false).
 155  
      *
 156  
      * @return false.
 157  
      */
 158  
     public boolean escapeText()
 159  
     {
 160  0
         return false;
 161  
     }
 162  
 
 163  
     /**
 164  
      * Whether an escape clause in like should be used.
 165  
      * Example : select * from AUTHOR where AUTHOR.NAME like '\_%' ESCAPE '\';
 166  
      *
 167  
      * Interbase needs this, so this implementation always returns
 168  
      * <code>true</code>.
 169  
      *
 170  
      * @return whether the escape clause should be appended or not.
 171  
      */
 172  
     public boolean useEscapeClauseForLike()
 173  
     {
 174  0
         return true;
 175  
     }
 176  
 }

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