HibernateClinic.java
资源名称:petclinic.rar [点击查看]
上传用户:dezhong
上传日期:2022-08-10
资源大小:167k
文件大小:3k
源码类别:
Java编程
开发平台:
Java
- package org.springframework.samples.petclinic.hibernate;
- import java.util.Collection;
- import org.hibernate.SessionFactory;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.samples.petclinic.Clinic;
- import org.springframework.samples.petclinic.Owner;
- import org.springframework.samples.petclinic.Pet;
- import org.springframework.samples.petclinic.PetType;
- import org.springframework.samples.petclinic.Vet;
- import org.springframework.samples.petclinic.Visit;
- import org.springframework.stereotype.Repository;
- import org.springframework.transaction.annotation.Transactional;
- /**
- * Hibernate implementation of the Clinic interface.
- *
- * <p>The mappings are defined in "petclinic.hbm.xml", located in the root of the
- * class path.
- *
- * <p>Note that transactions are declared with annotations and that some methods
- * contain "readOnly = true" which is an optimization that is particularly
- * valuable when using Hibernate (to suppress unnecessary flush attempts for
- * read-only operations).
- *
- * @author Juergen Hoeller
- * @author Sam Brannen
- * @author Mark Fisher
- * @since 19.10.2003
- */
- @Repository
- @Transactional
- public class HibernateClinic implements Clinic {
- @Autowired
- private SessionFactory sessionFactory;
- @Transactional(readOnly = true)
- @SuppressWarnings("unchecked")
- public Collection<Vet> getVets() {
- return sessionFactory.getCurrentSession().createQuery("from Vet vet order by vet.lastName, vet.firstName").list();
- }
- @Transactional(readOnly = true)
- @SuppressWarnings("unchecked")
- public Collection<PetType> getPetTypes() {
- return sessionFactory.getCurrentSession().createQuery("from PetType type order by type.name").list();
- }
- @Transactional(readOnly = true)
- @SuppressWarnings("unchecked")
- public Collection<Owner> findOwners(String lastName) {
- return sessionFactory.getCurrentSession().createQuery("from Owner owner where owner.lastName like :lastName")
- .setString("lastName", lastName + "%").list();
- }
- @Transactional(readOnly = true)
- public Owner loadOwner(int id) {
- return (Owner) sessionFactory.getCurrentSession().load(Owner.class, id);
- }
- @Transactional(readOnly = true)
- public Pet loadPet(int id) {
- return (Pet) sessionFactory.getCurrentSession().load(Pet.class, id);
- }
- public void storeOwner(Owner owner) {
- // Note: Hibernate3's merge operation does not reassociate the object
- // with the current Hibernate Session. Instead, it will always copy the
- // state over to a registered representation of the entity. In case of a
- // new entity, it will register a copy as well, but will not update the
- // id of the passed-in object. To still update the ids of the original
- // objects too, we need to register Spring's
- // IdTransferringMergeEventListener on our SessionFactory.
- sessionFactory.getCurrentSession().merge(owner);
- }
- public void storePet(Pet pet) {
- sessionFactory.getCurrentSession().merge(pet);
- }
- public void storeVisit(Visit visit) {
- sessionFactory.getCurrentSession().merge(visit);
- }
- }