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Latest Changes as of May 13th 

Added utility class for data creation (populating tables).
Eliminated hbm.xml files
Fixed the strange “id bug” with Foo
Eliminated the bar_id field from the Foo class
This commit is contained in:
egmp777 2014-05-13 09:42:24 -05:00
parent ce91d77866
commit 27ab504a90
7 changed files with 171 additions and 75 deletions
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21
spring-hibernate4/src/main/java/org/baeldung/persistence/model/Bar.hbm.xml
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@ -1,21 +0,0 @@
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 29-abr-2014 15:39:59 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="org.baeldung.persistence.model.Bar" table="BAR">
<id name="id" type="int">
<column name="ID" />
<generator class="assigned" />
</id>
<set name="fooSet" table="FOO" inverse="false" lazy="true" order-by="NAME DESC">
<key>
<column name="BAR_ID" />
</key>
<one-to-many class="org.baeldung.persistence.model.Foo" />
</set>
<property name="name" type="java.lang.String">
<column name="NAME" />
</property>
</class>
</hibernate-mapping>

5
spring-hibernate4/src/main/java/org/baeldung/persistence/model/Bar.java
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@ -4,6 +4,7 @@ import java.io.Serializable;
import java.util.Set;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
@ -22,11 +23,13 @@ public class Bar implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id")
private int id;
@Column(name = "name")
private String name;
@OneToMany(mappedBy = "bar", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@OneToMany(mappedBy = "bar", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
@OrderBy(clause = "NAME DESC")
private Set<Foo> fooSet = Sets.newHashSet();

19
spring-hibernate4/src/main/java/org/baeldung/persistence/model/Foo.hbm.xml
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@ -1,19 +0,0 @@
<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
<!-- Generated 23-abr-2014 18:00:30 by Hibernate Tools 3.4.0.CR1 -->
<hibernate-mapping>
<class name="org.baeldung.persistence.model.Foo" table="FOO">
<id name="id" type="int">
<column name="ID" />
<generator class="native" />
</id>
<property name="name" type="java.lang.String">
<column name="NAME" />
</property>
<many-to-one name="bar" class="org.baeldung.persistence.model.Bar" fetch="join" >
<column name="BAR_ID" />
</many-to-one>
</class>
</hibernate-mapping>

11
spring-hibernate4/src/main/java/org/baeldung/persistence/model/Foo.java
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@ -2,30 +2,29 @@ package org.baeldung.persistence.model;
import java.io.Serializable;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import org.hibernate.annotations.Fetch;
import org.hibernate.annotations.FetchMode;
@Entity
public class Foo implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "id")
private long id;
@Column(nullable = false)
@Column(name = "name")
private String name;
@ManyToOne(targetEntity = Bar.class)
@ManyToOne(targetEntity = Bar.class, cascade = CascadeType.ALL, fetch = FetchType.EAGER)
@JoinColumn(name = "BAR_ID")
@Fetch(FetchMode.JOIN)
private Bar bar = new Bar();
public Foo() {

47
spring-hibernate4/src/test/java/hibernate.cfg.xml
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@ -7,31 +7,30 @@
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/spring_hibernate4_01?createDatabaseIfNotExist=true</property>
<property name="connection.username">tutorialuser</property>
<property name="connection.password">tutorialmy5ql</property>
<!-- Database connection settings -->
<property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/HIBERTEST2_TEST</property>
<property name="connection.username">root</property>
<property name="connection.password"></property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- Drop and re-create the database schema on startup -->
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Enable Hibernate's automatic session context management -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- Drop and re-create the database schema on startup -->
<mapping resource="org//baeldung//persistence//model//Foo.hbm.xml" />
<mapping resource="org//baeldung//persistence//model//Bar.hbm.xml" />
</session-factory>
</session-factory>
</hibernate-configuration>

119
spring-hibernate4/src/test/java/org/baeldung/persistence/hibernate/FooSortingPersistenceServiceData.java Normal file
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@ -0,0 +1,119 @@
package org.baeldung.persistence.hibernate;
import java.util.List;
import org.baeldung.persistence.model.Bar;
import org.baeldung.persistence.model.Foo;
import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.cfg.Configuration;
import org.hibernate.service.ServiceRegistry;
import com.google.common.collect.Lists;
public class FooSortingPersistenceServiceData {
private static ServiceRegistry serviceRegistry;
private static SessionFactory sessionFactory;
private static Configuration configuration;
private static StandardServiceRegistryBuilder builder;
public FooSortingPersistenceServiceData() {
super();
}
public void createBars() {
configWork();
Session session = null;
Transaction tx = null;
session = sessionFactory.openSession();
tx = session.getTransaction();
try {
tx.begin();
for (int i = 156; i < 160; i++) {
final Bar bar = new Bar();
bar.setName("Bar_" + i);
final Foo foo = new Foo("Foo_" + (i + 120));
foo.setBar(bar);
session.save(foo);
final Foo foo2 = new Foo(null);
if (i % 2 == 0)
foo2.setName("LuckyFoo" + (i + 120));
foo2.setBar(bar);
session.save(foo2);
bar.getFooSet().add(foo);
bar.getFooSet().add(foo2);
session.merge(bar);
}
tx.commit();
session.flush();
} catch (final HibernateException he) {
if (tx != null)
tx.rollback();
System.out.println("Not able to open session");
he.printStackTrace();
} catch (final Exception e) {
e.printStackTrace();
} finally {
if (session != null)
session.close();
}
}
public void createFoos() {
configWork();
Session session = null;
Transaction tx = null;
session = sessionFactory.openSession();
tx = session.getTransaction();
final List<Foo> fooList = Lists.newArrayList();
for (int i = 35; i < 46; i++) {
final Foo foo = new Foo();
foo.setName("Foo_" + (i + 120));
final Bar bar = new Bar("bar_" + i);
bar.getFooSet().add(foo);
foo.setBar(bar);
fooList.add(foo);
}
try {
tx.begin();
for (final Foo foo : fooList) {
session.save(foo.getBar());
session.save(foo);
}
tx.commit();
session.flush();
} catch (final HibernateException he) {
if (tx != null)
tx.rollback();
System.out.println("Not able to open session");
he.printStackTrace();
} catch (final Exception e) {
e.printStackTrace();
} finally {
if (session != null)
session.close();
}
}
public void configWork() {
configuration = new Configuration();
configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
configuration.setProperty("dialect", "org.hibernate.dialect.MySQLDialect");
configuration.setProperty(AvailableSettings.DRIVER, "com.mysql.jdbc.Driver");
configuration.setProperty(AvailableSettings.URL, "jdbc:mysql://localhost:3306/HIBERTEST2_TEST");
configuration.setProperty(AvailableSettings.USER, "root");
configuration.setProperty(AvailableSettings.PASS, "");
builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
sessionFactory = configuration.addPackage("com.cc.example.hibernate").addAnnotatedClass(Foo.class).addAnnotatedClass(Bar.class).configure().buildSessionFactory(builder.build());
}
}

24
spring-hibernate4/src/test/java/org/baeldung/persistence/hibernate/FooSortingPersistenceServiceTest.java
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@ -5,6 +5,8 @@ import static org.junit.Assert.assertNull;
import java.util.List;
import java.util.Set;
import javax.imageio.spi.ServiceRegistry;
import org.baeldung.persistence.model.Bar;
import org.baeldung.persistence.model.Foo;
import org.baeldung.spring.PersistenceConfig;
@ -14,6 +16,7 @@ import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.boot.registry.StandardServiceRegistryBuilder;
import org.hibernate.cfg.AvailableSettings;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Order;
import org.junit.After;
@ -30,12 +33,25 @@ import org.springframework.test.context.support.AnnotationConfigContextLoader;
public class FooSortingPersistenceServiceTest {
private SessionFactory sf;
private Session sess;
private static ServiceRegistry serviceRegistry;
private static Configuration configuration;
private static StandardServiceRegistryBuilder builder;
@Before
public final void before() {
final Configuration configuration = new Configuration().configure();
final StandardServiceRegistryBuilder builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
sf = configuration.buildSessionFactory(builder.build());
public void before() {
// final FooSortingPersistenceServiceData fooData = new FooSortingPersistenceServiceData();
// fooData.createBars();
configuration = new Configuration();
configuration.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
configuration.setProperty("dialect", "org.hibernate.dialect.MySQLDialect");
configuration.setProperty(AvailableSettings.DRIVER, "com.mysql.jdbc.Driver");
configuration.setProperty(AvailableSettings.URL, "jdbc:mysql://localhost:3306/HIBERTEST2_TEST");
configuration.setProperty(AvailableSettings.USER, "root");
configuration.setProperty(AvailableSettings.PASS, "");
configuration.setProperty("hibernate.show_sql", "true");
builder = new StandardServiceRegistryBuilder().applySettings(configuration.getProperties());
sf = configuration.addPackage("org.baeldung.persistence.model").addAnnotatedClass(Foo.class).addAnnotatedClass(Bar.class).configure().buildSessionFactory(builder.build());
sess = sf.openSession();
sess.beginTransaction();
}