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1 package org.hibernate.criterion;
3
4
5 import org.hibernate.Criteria;
6 import org.hibernate.HibernateException;
7 import org.hibernate.dialect.Dialect;
8 import org.hibernate.dialect.PostgreSQLDialect;
9 import org.hibernate.engine.TypedValue;
10
11
15 public class IlikeExpression implements Criterion {
16
17 private final String  propertyName;
18 private final Object value;
19
20 protected IlikeExpression(String propertyName, Object value) {
21 this.propertyName = propertyName;
22 this.value = value;
23 }
24
25 protected IlikeExpression(String propertyName, String value, MatchMode matchMode) {
26 this( propertyName, matchMode.toMatchString(value) );
27 }
28
29 public String toSqlString(Criteria criteria, CriteriaQuery criteriaQuery)
30 throws HibernateException {
31 Dialect dialect = criteriaQuery.getFactory().getDialect();
32 String [] columns = criteriaQuery.getColumnsUsingProjection(criteria, propertyName);
33 if (columns.length!=1) throw new HibernateException("ilike may only be used with single-column properties");
34 if ( dialect instanceof PostgreSQLDialect ) {
35 return columns[0] + " ilike ?";
36 }
37 else {
38 return dialect.getLowercaseFunction() + '(' + columns[0] + ") like ?";
39 }
40
41 }
43
44 public TypedValue[] getTypedValues(Criteria criteria, CriteriaQuery criteriaQuery)
45 throws HibernateException {
46 return new TypedValue[] { criteriaQuery.getTypedValue( criteria, propertyName, value.toString().toLowerCase() ) };
47 }
48
49 public String toString() {
50 return propertyName + " ilike " + value;
51 }
52
53 }
54 |
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