Coverage report

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org.apache.torque.util.SqlEnum
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 1  
 package org.apache.torque.util;
 2  
 
 3  
 /*
 4  
  * Copyright 2001-2004 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  
 
 20  
 /**
 21  
  * A typesafe enum of SQL string fragments.  Used by Criteria and SqlExpression
 22  
  * to build queries.  Criteria also makes most of the constants available
 23  
  * in order to specify a criterion.
 24  
  *
 25  
  * @author <a href="mailto:jmcnally@collab.net"></a>
 26  
  * @author <a href="mailto:fischer@seitenbau.de">Thomas Fischer</a>
 27  
  * @version $Id: SqlEnum.java,v 1.8 2005/01/31 19:43:52 tfischer Exp $
 28  
  * @since 3.0
 29  
  */
 30  
 public class SqlEnum implements java.io.Serializable
 31  
 {
 32  
     private final String s;
 33  
     
 34  
     private SqlEnum(String s) 
 35  168
     { 
 36  168
         this.s = s;
 37  168
     }
 38  
 
 39  
     public final String toString()  
 40  
     { 
 41  159
         return s;
 42  
     }
 43  
     
 44  6
     public static final SqlEnum EQUAL = 
 45  
         new SqlEnum("=");
 46  6
     public static final SqlEnum NOT_EQUAL = 
 47  
             new SqlEnum("<>");
 48  6
     public static final SqlEnum ALT_NOT_EQUAL = 
 49  
         new SqlEnum("!=");
 50  6
     public static final SqlEnum GREATER_THAN =
 51  
         new SqlEnum(">");
 52  6
     public static final SqlEnum LESS_THAN =
 53  
         new SqlEnum("<");
 54  6
     public static final SqlEnum GREATER_EQUAL =
 55  
         new SqlEnum(">=");
 56  6
     public static final SqlEnum LESS_EQUAL =
 57  
         new SqlEnum("<=");  
 58  6
     public static final SqlEnum LIKE =
 59  
         new SqlEnum(" LIKE ");
 60  6
     public static final SqlEnum NOT_LIKE =
 61  
         new SqlEnum(" NOT LIKE ");
 62  6
     public static final SqlEnum ILIKE =
 63  
         new SqlEnum(" ILIKE ");
 64  6
     public static final SqlEnum NOT_ILIKE =
 65  
         new SqlEnum(" NOT ILIKE ");
 66  6
     public static final SqlEnum IN =
 67  
         new SqlEnum(" IN ");
 68  6
     public static final SqlEnum NOT_IN =
 69  
         new SqlEnum(" NOT IN ");
 70  6
     public static final SqlEnum CUSTOM =
 71  
         new SqlEnum("CUSTOM");
 72  6
     public static final SqlEnum JOIN =
 73  
         new SqlEnum("JOIN");
 74  6
     public static final SqlEnum DISTINCT =
 75  
         new SqlEnum("DISTINCT ");
 76  6
     public static final SqlEnum ALL =
 77  
         new SqlEnum("ALL ");
 78  6
     public static final SqlEnum ASC =
 79  
         new SqlEnum("ASC");
 80  6
     public static final SqlEnum DESC =
 81  
         new SqlEnum("DESC");
 82  6
     public static final SqlEnum ISNULL =
 83  
         new SqlEnum(" IS NULL ");
 84  6
     public static final SqlEnum ISNOTNULL =
 85  
         new SqlEnum(" IS NOT NULL ");
 86  6
     public static final SqlEnum CURRENT_DATE =
 87  
         new SqlEnum("CURRENT_DATE");
 88  6
     public static final SqlEnum CURRENT_TIME =
 89  
         new SqlEnum("CURRENT_TIME");
 90  6
     public static final SqlEnum LEFT_JOIN =
 91  
         new SqlEnum(" LEFT JOIN ");
 92  6
     public static final SqlEnum RIGHT_JOIN =
 93  
         new SqlEnum(" RIGHT JOIN ");
 94  6
     public static final SqlEnum INNER_JOIN =
 95  
         new SqlEnum(" INNER JOIN ");
 96  6
     public static final SqlEnum ON =
 97  
         new SqlEnum(" ON ");
 98  6
     public static final SqlEnum AS =
 99  
         new SqlEnum(" AS ");
 100  
     
 101  
     /**
 102  
      * returns whether o is the same SqlEnum as this object.
 103  
      * Two SqlEnums are considered equal if they contain the same String.
 104  
      * @param o the object to compare the SqlEnum with.
 105  
      */
 106  
     public boolean equals(Object o) 
 107  
     {
 108  939
         if (o == null) 
 109  
         {
 110  0
             return false;
 111  
         }
 112  
 
 113  939
         if (! (o instanceof SqlEnum)) 
 114  
         {
 115  0
             return false;
 116  
         }
 117  
 
 118  939
         SqlEnum otherEnum = (SqlEnum) o;
 119  
 
 120  
 
 121  
         // both null: true
 122  
         // other null, this not null: false
 123  
         // else compare
 124  939
         return (otherEnum.s == null) 
 125  
                 ? (s == null)
 126  
                 : otherEnum.s.equals(s);
 127  
     }
 128  
     
 129  
     /**
 130  
      * returns a hashcode for this object which is consistent with equals()
 131  
      */
 132  
     public int hashCode() 
 133  
     {
 134  24
         return (s == null) 
 135  
                 ? 0
 136  
                 : s.hashCode();
 137  
     }
 138  
 }

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