com.floreantpos.dal.POSDao.java Source code

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Here is the source code for com.floreantpos.dal.POSDao.java

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/**
 * ************************************************************************
 * * The contents of this file are subject to the MRPL 1.2
 * * (the  "License"),  being   the  Mozilla   Public  License
 * * Version 1.1  with a permitted attribution clause; you may not  use this
 * * file except in compliance with the License. You  may  obtain  a copy of
 * * the License at http://www.floreantpos.org/license.html
 * * Software distributed under the License  is  distributed  on  an "AS IS"
 * * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
 * * License for the specific  language  governing  rights  and  limitations
 * * under the License.
 * * The Original Code is FLOREANT POS.
 * * The Initial Developer of the Original Code is OROCUBE LLC
 * * All portions are Copyright (C) 2015 OROCUBE LLC
 * * All Rights Reserved.
 * ************************************************************************
 */
package com.floreantpos.dal;

import java.util.List;

import org.hibernate.Session;
import org.hibernate.Transaction;

import com.floreantpos.PosException;

public class POSDao {
    public static void save(Object o) throws Exception {
        Transaction tx = null;

        try {
            Session session = PosSessionFactory.currentSession();
            tx = session.beginTransaction();
            session.saveOrUpdate(o);
            tx.commit();
        } catch (Exception e) {
            if (tx != null) {
                tx.rollback();
            }
            throw e;
        } finally {
            PosSessionFactory.closeSession();
        }
    }

    public static void delete(Object o) throws PosException {
        Transaction tx = null;

        Session session;
        try {
            session = PosSessionFactory.currentSession();
            tx = session.beginTransaction();
            session.delete(o);
            tx.commit();
        } catch (Exception e) {
            if (tx != null) {
                tx.rollback();
            }
            throw new PosException(com.floreantpos.POSConstants.UNNABLE_TO_SAVE_ + o.getClass(), e);
        } finally {
            PosSessionFactory.closeSession();
        }
    }

    public static List findAll(Class clazz) throws PosException {
        try {
            Session session = PosSessionFactory.currentSession();
            List list = session.createCriteria(clazz).list();
            return list;
        } catch (Exception e) {
            throw new PosException(e);
        } finally {
            PosSessionFactory.closeSession();
        }
    }

    public static Object findUnique(Class clazz) throws PosException {
        try {
            Session session = PosSessionFactory.currentSession();
            Object object = session.createCriteria(clazz).uniqueResult();
            return object;
        } catch (Exception e) {
            throw new PosException(e);
        } finally {
            PosSessionFactory.closeSession();
        }
    }

}