I´m giving up and ask the community ...
In my project, I´m using Hibernate 3.6.4.Final and a custom sql dialect:
public class ServiceAppMySQL5InnoDBDialect extends MySQL5InnoDBDialect {
public ServiceAppMySQL5InnoDBDialect() {
super();
registerFunction("bitwise_and", new SQLFunctionTemplate(StandardBasicTypes.INTEGER, "(?1 & ?2)"));
registerFunction("hasflags", new SQLFunctionTemplate(StandardBasicTypes.BOOLEAN, "?1 & ?2 = ?2"));
}
}
Using the hasflags
method in a HQL query fails.
Here is the query:
Query q = em
.createQuery(
"SELECT o FROM "
+ entityClass.getName()
+ " o WHERE hasflags(o.status, :status) AND o.email = :email")
.setParameter("email", username)
.setParameter("status", status.getBitmask());
The error:
Caused by: org.hibernate.hql.ast.QuerySyntaxException: unexpected AST node: ( near line 1, column 50 [SELECT o FROM tv.px.domain.Owner o WHERE hasflags(o.status, :status) AND o.email = :email]
at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:54)
at org.hibernate.hql.ast.QuerySyntaxException.convert(QuerySyntaxException.java:47)
at org.hibernate.hql.ast.ErrorCounter.throwQueryException(ErrorCounter.java:82)
at org.hibernate.hql.ast.QueryTranslatorImpl.analyze(QueryTranslatorImpl.java:261)
at org.hibernate.hql.ast.QueryTranslatorImpl.doCompile(QueryTranslatorImpl.java:185)
at org.hibernate.hql.ast.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:136)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:101)
at org.hibernate.engine.query.HQLQueryPlan.<init>(HQLQueryPlan.java:80)
at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:124)
at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:156)
at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:135)
at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1770)
at org.hibernate.ejb.AbstractEntityManagerImpl.createQuery(AbstractEntityManagerImpl.java:272)
So, it seems as if the function is not properly registered. I´ve done this several tim开发者_开发知识库es with older Hibernate versions and it worked this way all the time.
Just in case someone asks this: yes, I configured Hibernate to use the dialect:
<persistence-unit name="persistenceUnit"
transaction-type="RESOURCE_LOCAL">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<properties>
<property name="hibernate.dialect" value="tv.px.persistence.hibernate.ServiceAppMySQL5InnoDBDialect" />
<!-- and so on -->
</properties>
</persistence-unit>
Edit: In the SELECT clause I can use registered functions without problems, but not in the WHERE clause.
I have a similar problem. It works if you modify the where clause to:
hasflags(o.status, :status) = true
I need it to work without that, and my search for it brought me here.
精彩评论