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- <?xml version="1.0" encoding="UTF-8"?>
- <persistence version="2.0"
- xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
- xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd">
- <persistence-unit name="default" transaction-type="RESOURCE_LOCAL">
- <class>entities.Secao</class>
- <class>entities.Funcionario</class>
- <class>entities.Unidade</class>
- <class>entities.Patrimonio</class>
- <class>entities.Descricao</class>
- <class>entities.Classificacao</class>
- <validation-mode>AUTO</validation-mode>
- <properties>
- <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost/patrimonio" />
- <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver" />
- <property name="javax.persistence.jdbc.user" value="root" />
- <property name="javax.persistence.jdbc.password" value="root" />
- <property name="hibernate.hbm2ddl.auto" value="update" />
- <property name="hibernate.show_sql" value="true" />
- <property name="hibernate.format_sql" value="true" />
- <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
- </properties>
- </persistence-unit>
- public void save() {
- int i = 0;
- EntityManager em = JpaUtil.getEntityManager();
- while (i < 10) {
- em.merge(item);
- i = i + 1;
- }
- item = new Item();
- }
- package persistence;
- import javax.persistence.EntityManager;
- import javax.persistence.EntityManagerFactory;
- import javax.persistence.EntityTransaction;
- import javax.persistence.Persistence;
- import org.hibernate.Session;
- public class JpaUtil {
- private static final String PERSISTENCE_UNIT_NAME = "default";
- private static ThreadLocal<EntityManager> manager = new ThreadLocal<EntityManager>();
- private static EntityManagerFactory factory;
- private JpaUtil() {
- }
- public static boolean isEntityManagerOpen() {
- return JpaUtil.manager.get() != null && JpaUtil.manager.get().isOpen();
- }
- public static EntityManager getEntityManager() {
- if (JpaUtil.factory == null) {
- JpaUtil.factory = Persistence
- .createEntityManagerFactory(PERSISTENCE_UNIT_NAME);
- }
- EntityManager em = JpaUtil.manager.get();
- if (em == null || !em.isOpen()) {
- em = JpaUtil.factory.createEntityManager();
- JpaUtil.manager.set(em);
- }
- return em;
- }
- public static void evictCache(EntityManager em, String region) {
- ((Session) em.getDelegate()).getSessionFactory().getCache()
- .evictQueryRegion(region);
- }
- public static void closeEntityManager() {
- EntityManager em = JpaUtil.manager.get();
- if (em != null) {
- EntityTransaction tx = em.getTransaction();
- if (tx.isActive()) {
- tx.commit();
- }
- em.close();
- JpaUtil.manager.set(null);
- }
- }
- public static void closeEntityManagerFactory() {
- closeEntityManager();
- JpaUtil.factory.close();
- }
- }
- public void save() {
- int i = 0;
- EntityManager em = JpaUtil.getEntityManager();
- while (i < 10) {
- //em.merge(item);
- em.persist(item);
- i = i + 1;
- }
- item = new Item();
- }
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