[hibernate-issues] [Hibernate-JIRA] Created: (HHH-3520) wrongly predicted param type in HQL

[Gregory Klimov (JIRA)]

wrongly predicted param type in HQL
-----------------------------------

                 Key: HHH-3520
                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3520
             Project: Hibernate Core
          Issue Type: Bug
          Components: query-hql
    Affects Versions: 3.3.1
            Reporter: Gregory Klimov


Consider class CategoryCode class with property 'code' of type Integer. Then such a code snippet:

Query query1 = session.createQuery("from CategoryCode where 'Hello world!' + code + 14 = ?");
query1.setParameter(0, "Test");
query1.list();

Its execution produces sql (which is absolutely correct):

select
        ...
from
        category_codes categoryco0_ 
    where
        'Hello world!'+categoryco0_.code+14=?

but mapping parameter gives error:

20:21:01,504 <> [main]  INFO IntegerType:140 - could not bind value 'Test' to parameter: 1; java.lang.String cannot be cast to java.lang.Integer
Exception in thread "main" java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer
	at org.hibernate.type.IntegerType.set(IntegerType.java:41)
	at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:136)
	at org.hibernate.type.NullableType.nullSafeSet(NullableType.java:116)
	at org.hibernate.param.PositionalParameterSpecification.bind(PositionalParameterSpecification.java:39)
	at org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:491)
	at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1563)


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