/*
* Copyright 2008-2011 the original author or authors.
*
* 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 com.nominanuda.hibernate;
import org.hibernate.Session;
import org.hibernate.Transaction;
public abstract class TxJob<T> {
protected abstract T job(Session session, Transaction tx) throws Exception;
public T callAndClose(Session s) throws Exception {
return call(s, true);
}
public T call(Session session, boolean close) throws Exception {
Transaction tx = null;
T result = null;
try {
tx = session.beginTransaction();
result = job(session, tx);
tx.commit();
return result;
} catch(Exception e) {
if(tx != null && tx.isActive()) {
tx.rollback();
}
throw e;
} finally {
if(session != null && close) {
session.close();
}
}
}
}