hibernateclinic.java

spring的源代码

package org.springframework.samples.petclinic.hibernate;

import java.util.Collection;

import org.springframework.dao.DataAccessException;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import org.springframework.samples.petclinic.Clinic;
import org.springframework.samples.petclinic.Owner;
import org.springframework.samples.petclinic.Pet;
import org.springframework.samples.petclinic.Visit;

/**
 * Hibernate implementation of the Clinic interface.
 *
 * <p>The mappings are defined in "petclinic.hbm.xml",
 * located in the root of the class path.
 *
 * @author Juergen Hoeller
 * @since 19.10.2003
 */
public class HibernateClinic extends HibernateDaoSupport implements Clinic {

	public Collection getVets() throws DataAccessException {
		return getHibernateTemplate().find("from Vet vet order by vet.lastName, vet.firstName");
	}

	public Collection getPetTypes() throws DataAccessException {
		return getHibernateTemplate().find("from PetType type order by type.name");
	}

	public Collection findOwners(String lastName) throws DataAccessException {
		return getHibernateTemplate().find("from Owner owner where owner.lastName like ?", lastName + "%");
	}

	public Owner loadOwner(int id) throws DataAccessException {
		return (Owner) getHibernateTemplate().load(Owner.class, new Integer(id));
	}

	public Pet loadPet(int id) throws DataAccessException {
		return (Pet) getHibernateTemplate().load(Pet.class, new Integer(id));
	}

	public void storeOwner(Owner owner) throws DataAccessException {
		// 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.
		getHibernateTemplate().merge(owner);
	}

	public void storePet(Pet pet) throws DataAccessException {
		getHibernateTemplate().merge(pet);
	}

	public void storeVisit(Visit visit) throws DataAccessException {
		getHibernateTemplate().merge(visit);
	}

}