named-query

问题 I need to keep the all the named queries in a separate file. For example @javax.persistence.NamedQueries({ @NamedQuery(name = "Employee.findAll", query = "SELECT e FROM Employee e")}) public class AllNamedQueries { } Now that much in itself causes an Error "Named queries can only be defined in Entity or MappedSuperClass class". How do I create Named Queries in a Separate file? By separate I mean files other than entity file. 回答1: You can use orm.xml that allows you to define JPA mappings in

问题 I am using some entities generated by Netbeans. After generation I tested them and they were working fine. So then I had to move to my next step and combine those with my JAXB objects. After combining with the JAXB objects I am able to unmarshall my XML stream with no problem. But when I try to use any of those classes for anything entity related I get some errors. I am back at the testing phase again now and here is what I have. I have a test class just running from a simple main method. The

问题 I am trying to execute a query in hibernate using Named Query. But, while execution I am getting Hibernate Mapping Exception. Can any one please help me to identify the problem. Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: -101 at org.hibernate.dialect.TypeNames.get(TypeNames.java:79) at org.hibernate.dialect.TypeNames.get(TypeNames.java:104) at org.hibernate.dialect.Dialect.getHibernateTypeName(Dialect.java:442) at org.hibernate.loader.custom.CustomLoader

问题 Sorry if this is a very nooby/stupid question, but I was wondering if there was any difference, besides implementation, between defining a query in the repository: public interface EmployeeRepository<Employee, Integer> { @Query("select e from Employee e where e.name like :name") public List<Employee> findByName(@Param("name") String name); } and defining a query in the entity: @Entity @NamedQuery(name="Employee.findByName", query="select e from Employee e where e.name like :name") public

问题 I have a pojo which contains a few named queries to get data. @NamedQueries({ @NamedQuery(name="abc", query="test") }) @Entity @Table(name = "MY_TABLE") public class MyTable implements java.io.Serializable{ private long id; private String name; ........... I have to access the result of this named query from inside a service layer method. So I tried to autowire the hibernate session factory into the service layer class. @Service public class MyServiceClass{ @Autowired SessionFactory

问题 when trying to use the Enumerable method on a named query, with a Stateless session, as shown in the example at: http://www.nhforge.org/doc/nh/en/#batch-statelesssession i am seeing a NotSupportedException. the stack trace is as below: System.NotSupportedException: Specified method is not supported. at NHibernate.Impl.StatelessSessionImpl.Enumerable(String query, QueryParameters parameters) at NHibernate.Impl.QueryImpl.Enumerable() here is a snippet of my code: IStatelessSession

问题 Please help me to find out the issue.i am a beginner in spring hibernate and using Spring 3 and hibernate 4 in my project, i want to use namedQuery in my application. I have created a named query to fetch data from multiple table using join, but i am getting some issue please correct me if i am doing something wrong here. Vode is below The Entity class:- @Embeddable @NamedQuery( name = "findAllProduct", query = "SELECT PVPOL.pincode,PO.description" +" FROM product_vendor_payment_option

问题 I would like to make this query in JPA: SELECT * FROM `happyDB`.`users` U WHERE U.party_as_user =1 AND U.party_party_id =2 This is working fine, but my problem is that I have Party only as an object, not as an id and I can't make it work. In the Users -entity where I am trying to do the named query I have the following: @JoinColumn(name = "pary_party_id", referencedColumnName = "party_id") @ManyToOne private Party partyId; @Column(name = "party_as_user") private Boolean partyAsUser; I tried

问题 Hello guys I am having some problems with exact matches while doing a NamedQuery. I am currently using something like this: @NamedQuery(name = MyClass.GET_ENTRY_BY_NAME, query = "select e from Entry e where e.name =:"+ Entry.NAME ) ... Query query = em.createNamedQuery(MyClass.GET_ENTRY_BY_NAME); query.setParameter(Entry.NAME, myEntry.getName()); It works for most cases, however I noticed that in case the user pass the file name with an space at the end, the namedQuery ignores that character.

问题 Trying to learn Hibernate, i am trying to learn how to execute NamedQuries but evertime i am getting Exception in thread "main" org.hibernate.MappingException: Named query not known .Please help me out here Error ( only the message, not showing complete stack ) Exception in thread "main" org.hibernate.MappingException: Named query not known: hibernate_tut_emp.Employee.FindCountOfNames at org.hibernate.internal.AbstractSessionImpl.getNamedQuery(AbstractSessionImpl.java:177) at org.hibernate