129 lines
3.6 KiB
Java

/*
* Copyright (C) 2006 Alfresco, Inc.
*
* Licensed under the Mozilla Public License version 1.1
* with a permitted attribution clause. You may obtain a
* copy of the License at
*
* http://www.alfresco.org/legal/license.txt
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied. See the License for the specific
* language governing permissions and limitations under the
* License.
*/
package org.alfresco.repo.avm.hibernate;
import java.util.List;
import org.alfresco.repo.avm.AVMNode;
import org.alfresco.repo.avm.ChildEntry;
import org.alfresco.repo.avm.ChildEntryDAO;
import org.alfresco.repo.avm.DirectoryNode;
import org.hibernate.Query;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
/**
* The Hibernate version of the ChildEntry DAO.
* @author britt
*/
class ChildEntryDAOHibernate extends HibernateDaoSupport implements
ChildEntryDAO
{
/**
* Do nothing constructor.
*/
public ChildEntryDAOHibernate()
{
super();
}
/**
* Save an unsaved ChildEntry.
* @param entry The entry to save.
*/
public void save(ChildEntry entry)
{
getSession().save(entry);
}
/**
* Get an entry by name and parent.
* @param name The name of the child to find.
* @param parent The parent to look in.
* @return The ChildEntry or null if not foun.
*/
public ChildEntry getByNameParent(String name, DirectoryNode parent)
{
Query query = getSession().createQuery(
"from ChildEntryImpl ce where ce.name = :name and ce.parent = :parent");
query.setString("name", name);
query.setEntity("parent", parent);
query.setCacheable(true);
return (ChildEntry)query.uniqueResult();
}
/**
* Get all the children of a given parent.
* @param parent The parent.
* @return A List of ChildEntries.
*/
@SuppressWarnings("unchecked")
public List<ChildEntry> getByParent(DirectoryNode parent)
{
Query query = getSession().getNamedQuery("ChildEntry.ByParent");
query.setEntity("parent", parent);
query.setCacheable(true);
query.setCacheRegion("ChildEntry.ByParent");
return (List<ChildEntry>)query.list();
}
/**
* Get the entry for a given child in a given parent.
* @param parent The parent.
* @param child The child.
* @return The ChildEntry or null.
*/
public ChildEntry getByParentChild(DirectoryNode parent, AVMNode child)
{
Query query = getSession().getNamedQuery("ChildEntry.ByParentChild");
query.setEntity("parent", parent);
query.setEntity("child", child);
query.setCacheable(true);
query.setCacheRegion("ChildEntry.ByParentChild");
return (ChildEntry)query.uniqueResult();
}
/**
* Update a dirty ChildEntry.
* @param child The dirty entry.
*/
public void update(ChildEntry child)
{
// NO OP in Hibernate.
}
/**
* Delete one.
* @param child The one to delete.
*/
public void delete(ChildEntry child)
{
getSession().delete(child);
}
/**
* Delete all children of the given parent.
* @param parent The parent.
*/
public void deleteByParent(AVMNode parent)
{
Query delete = getSession().getNamedQuery("ChildEntry.DeleteByParent");
delete.setEntity("parent", parent);
delete.executeUpdate();
}
}