/*
* Copyright (c) 2005-2011 Grameen Foundation USA
* All rights reserved.
*
* 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.
*
* See also http://www.apache.org/licenses/LICENSE-2.0.html for an
* explanation of the license and how it is applied.
*/
package org.mifos.platform.persistence.support;
import org.hibernate.Query;
import org.mifos.platform.persistence.GenericDao;
import org.mifos.platform.persistence.QueryExecutor;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;
import java.io.Serializable;
import java.util.Collection;
import java.util.List;
public class GenericDaoHibernateImpl<T, ID extends Serializable>
extends HibernateDaoSupport implements GenericDao<T, ID>, QueryExecutor<T> {
private final Class<T> type;
public GenericDaoHibernateImpl(Class<T> type) {
super();
this.type = type;
}
@Override
public void add(T newInstance) {
getHibernateTemplate().save(newInstance);
}
@Override
public ID create(T newInstance) {
return (ID) getHibernateTemplate().save(newInstance);
}
@Override
public void delete(T persistentObject) {
getHibernateTemplate().delete(persistentObject);
}
@Override
public T getDetails(ID id) {
return getHibernateTemplate().get(type, id);
}
@Override
public List<T> getDetailsAll() {
return getHibernateTemplate().find("from " + type.getName());
}
@Override
public void saveOrUpdateAll(Collection<T> c) {
getHibernateTemplate().saveOrUpdateAll(c);
}
@Override
public void saveOrUpdate(T entity) {
getHibernateTemplate().saveOrUpdate(entity);
}
@Override
public void update(T transientObject) {
getHibernateTemplate().update(transientObject);
}
@Override
public List<T> execFindQuery(String qryMethodName, Object[] queryArgs) {
Query namedQuery = getSession().getNamedQuery(type.getSimpleName() + "." + qryMethodName);
if (namedQuery.getNamedParameters().length == 0) {
setParamsOnNamedQuery(queryArgs, namedQuery);
} else {
setArgsOnNamedQuery(queryArgs, namedQuery);
}
return namedQuery.list();
}
private void setParamsOnNamedQuery(Object[] queryArgs, Query namedQuery) {
if(queryArgs != null) {
for(int i = 0; i < queryArgs.length; i++) {
namedQuery.setParameter(i, queryArgs[i]);
}
}
}
private void setArgsOnNamedQuery(Object[] queryArgs, Query namedQuery) {
if(queryArgs != null) {
String[] namedParameters = namedQuery.getNamedParameters();
for(int i = 0; i < queryArgs.length; i++) {
Object arg = queryArgs[i];
if(arg instanceof Collection) {
namedQuery.setParameterList(namedParameters[i], (Collection) arg);
} else {
namedQuery.setParameter(namedParameters[i], arg);
}
}
}
}
}