1 package org.apache.torque.util;
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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 * @version $Id: SqlEnum.java,v 1.5.4.4 2004/10/20 23:05:31 henning Exp $
27 * @since 3.0
28 */
29 public class SqlEnum implements java.io.Serializable
30 {
31 private final String s;
32
33 private SqlEnum(String s)
34 {
35 this.s = s;
36 }
37
38 public final String toString()
39 {
40 return s;
41 }
42
43 public static final SqlEnum EQUAL =
44 new SqlEnum("=");
45 public static final SqlEnum NOT_EQUAL =
46 new SqlEnum("<>");
47 public static final SqlEnum ALT_NOT_EQUAL =
48 new SqlEnum("!=");
49 public static final SqlEnum GREATER_THAN =
50 new SqlEnum(">");
51 public static final SqlEnum LESS_THAN =
52 new SqlEnum("<");
53 public static final SqlEnum GREATER_EQUAL =
54 new SqlEnum(">=");
55 public static final SqlEnum LESS_EQUAL =
56 new SqlEnum("<=");
57 public static final SqlEnum LIKE =
58 new SqlEnum(" LIKE ");
59 public static final SqlEnum NOT_LIKE =
60 new SqlEnum(" NOT LIKE ");
61 public static final SqlEnum ILIKE =
62 new SqlEnum(" ILIKE ");
63 public static final SqlEnum NOT_ILIKE =
64 new SqlEnum(" NOT ILIKE ");
65 public static final SqlEnum IN =
66 new SqlEnum(" IN ");
67 public static final SqlEnum NOT_IN =
68 new SqlEnum(" NOT IN ");
69 public static final SqlEnum CUSTOM =
70 new SqlEnum("CUSTOM");
71 public static final SqlEnum JOIN =
72 new SqlEnum("JOIN");
73 public static final SqlEnum DISTINCT =
74 new SqlEnum("DISTINCT ");
75 public static final SqlEnum ALL =
76 new SqlEnum("ALL ");
77 public static final SqlEnum ASC =
78 new SqlEnum("ASC");
79 public static final SqlEnum DESC =
80 new SqlEnum("DESC");
81 public static final SqlEnum ISNULL =
82 new SqlEnum(" IS NULL ");
83 public static final SqlEnum ISNOTNULL =
84 new SqlEnum(" IS NOT NULL ");
85 public static final SqlEnum CURRENT_DATE =
86 new SqlEnum("CURRENT_DATE");
87 public static final SqlEnum CURRENT_TIME =
88 new SqlEnum("CURRENT_TIME");
89 }