/* Copyright 2009 The Revere Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* 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.chinasb.framework.core.base.dao.hibernate.original;
import java.io.Serializable;
import java.util.List;
import org.hibernate.NonUniqueResultException;
import org.chinasb.framework.core.base.dao.DAOUtil;
import org.chinasb.framework.core.base.dao.hibernate.HibernateBaseDAO;
import org.chinasb.framework.core.base.search.ExampleOptions;
import org.chinasb.framework.core.base.search.Filter;
import org.chinasb.framework.core.base.search.ISearch;
import org.chinasb.framework.core.base.search.Search;
import org.chinasb.framework.core.base.search.SearchResult;
/**
* Implementation of <code>GenericDAO</code> using Hibernate.
* The SessionFactory property is annotated for automatic resource injection.
*
* @author dwolverton
*
* @param <T>
* The type of the domain object for which this instance is to be
* used.
* @param <ID>
* The type of the id of the domain object for which this instance is
* to be used.
*/
@SuppressWarnings("unchecked")
public class GenericDAOImpl<T, ID extends Serializable> extends
HibernateBaseDAO implements GenericDAO<T, ID> {
protected Class<T> persistentClass = (Class<T>) DAOUtil.getTypeArguments(GenericDAOImpl.class, this.getClass()).get(0);
public void create(T object) {
if (!persistentClass.isInstance(object))
throw new IllegalArgumentException(
"Object class does not match dao type.");
_save(object);
}
public boolean createOrUpdate(T object) {
Serializable id = getMetadataUtil().getId(object);
if (id == null || (new Long(0)).equals(id)) {
create(object);
return true;
} else {
update(object);
return false;
}
}
public boolean deleteById(ID id) {
return _deleteById(persistentClass, id);
}
public boolean deleteEntity(T object) {
if (!persistentClass.isInstance(object))
throw new IllegalArgumentException(
"Object class does not match dao type.");
return _deleteEntity(object);
}
public T fetch(ID id) {
return (T) _get(persistentClass, id);
}
public List<T> fetchAll() {
return _all(persistentClass);
}
public void update(T object) {
if (!persistentClass.isInstance(object))
throw new IllegalArgumentException(
"Object class does not match dao type.");
_update(object);
}
public List<T> search(ISearch search) {
if (search == null)
return fetchAll();
return _search(persistentClass, search);
}
public int count(ISearch search) {
if (search == null)
search = new Search();
return _count(persistentClass, search);
}
public SearchResult<T> searchAndCount(ISearch search) {
if (search == null) {
SearchResult<T> result = new SearchResult<T>();
result.setResult(fetchAll());
result.setTotalCount(result.getResult().size());
return result;
}
return _searchAndCount(persistentClass, search);
}
public boolean isConnected(Object object) {
return _sessionContains(object);
}
public void flush() {
_flush();
}
public void refresh(Object object) {
_refresh(object);
}
public List searchGeneric(ISearch search) {
if (search == null)
return fetchAll();
return _search(persistentClass, search);
}
public Object searchUnique(ISearch search) throws NonUniqueResultException {
return _searchUnique(persistentClass, search);
}
public Filter getFilterFromExample(T example) {
return _getFilterFromExample(example);
}
public Filter getFilterFromExample(T example, ExampleOptions options) {
return _getFilterFromExample(example, options);
}}