com.emc.plants.service.impl.ResetDBBean.java Source code

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Here is the source code for com.emc.plants.service.impl.ResetDBBean.java

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//
//"This sample program is provided AS IS and may be used, executed, copied and modified without royalty payment by customer (a) for its own //instruction and study, (b) in order to develop applications designed to run with an IBM WebSphere product, either for customer's own internal use //or for redistribution by customer, as part of such an application, in customer's own products. " 
//
//Product 5630-A36,  (C) COPYRIGHT International Business Machines Corp., 2004, 2004
//All Rights Reserved * Licensed Materials - Property of IBM
//
package com.emc.plants.service.impl;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.Query;

import org.springframework.stereotype.Repository;

import com.emc.plants.service.interfaces.ResetDB;
import com.emc.plants.utils.Util;

/**
 * Bean implementation class for Enterprise Bean: ResetDB
 */
//@Stateless (name="ResetDB")
@Repository("resetDBBean")
//@TransactionManagement(value=BEAN)    // TODO: TransactionManagement(value=BEAN) 
public class ResetDBBean implements ResetDB {

    @PersistenceContext(unitName = "PBW")
    EntityManager em;

    public void deleteAll() {
        try {
            Query q = em.createNamedQuery("removeAllOrders");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllInventory");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllIdGenerator");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllCustomers");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllOrderItem");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllBackOrder");
            q.executeUpdate();
            q = em.createNamedQuery("removeAllSupplier");
            q.executeUpdate();
            em.flush();
        } catch (Exception e) {
            Util.debug("ResetDB(deleteAll) -- Error deleting data from the database: " + e);
            e.printStackTrace();
        }

    }

}