diff options
Diffstat (limited to 'sca-java-1.x/tags/1.6/samples/customer-dojo/src/main/java/customer/CustomerServiceImpl.java')
-rw-r--r-- | sca-java-1.x/tags/1.6/samples/customer-dojo/src/main/java/customer/CustomerServiceImpl.java | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/1.6/samples/customer-dojo/src/main/java/customer/CustomerServiceImpl.java b/sca-java-1.x/tags/1.6/samples/customer-dojo/src/main/java/customer/CustomerServiceImpl.java new file mode 100644 index 0000000000..0cba7d8bc1 --- /dev/null +++ b/sca-java-1.x/tags/1.6/samples/customer-dojo/src/main/java/customer/CustomerServiceImpl.java @@ -0,0 +1,117 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 customer; + +import java.util.ArrayList; +import java.util.Iterator; +import java.util.List; + +import javax.persistence.EntityManager; +import javax.persistence.EntityManagerFactory; +import javax.persistence.EntityTransaction; +import javax.persistence.Persistence; +import javax.persistence.Query; + +import org.osoa.sca.annotations.Destroy; +import org.osoa.sca.annotations.Init; + +public class CustomerServiceImpl implements CustomerService { + EntityManagerFactory emf = null; + EntityManager em = null; + + public CustomerServiceImpl() { + + } + + @Init + public void init() { + System.out.println(">>> Initializing JPA"); + try { + emf = Persistence.createEntityManagerFactory("customer-openJPA"); + em = emf.createEntityManager(); + } catch (Exception e) { + e.printStackTrace(); + } + } + + @Destroy + public void destroy() { + emf.close(); + } + + public Customer[] get() { + EntityTransaction tx = em.getTransaction(); + List<Customer> customers = new ArrayList<Customer>(); + try { + tx.begin(); + + Query q = em.createQuery("SELECT c FROM customer c"); + List results = q.getResultList(); + Iterator iter = results.iterator(); + while (iter.hasNext()) { + Customer customer = (Customer)iter.next(); + customers.add(customer); + } + + tx.commit(); + } catch (Exception e) { + e.printStackTrace(); + } finally { + if (tx.isActive()) { + tx.rollback(); + } + + em.close(); + } + + Customer[] customerArray = new Customer[customers.size()]; + customers.toArray(customerArray); + return customerArray; + } + + public Customer findCustomerByName(String name) { + EntityTransaction tx = em.getTransaction(); + Customer customer = null; + + try { + tx.begin(); + + Query q = em.createQuery("SELECT c FROM customer c WHERE c.name = '" + name + "'"); + List results = q.getResultList(); + Iterator iter = results.iterator(); + while (iter.hasNext()) { + customer = (Customer)iter.next(); + } + + tx.commit(); + } catch (Exception e) { + e.printStackTrace(); + } finally { + if (tx.isActive()) { + tx.rollback(); + } + + em.close(); + } + + return customer; + } + +} |