Title: Testing Transactions
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package org.superbiz.injection.tx;
import javax.persistence.Entity;
@Entity
public class Movie {
private String director;
private String title;
private int year;
public Movie() {
}
public Movie(String director, String title, int year) {
this.director = director;
this.title = title;
this.year = year;
}
public String getDirector() {
return director;
}
public void setDirector(String director) {
this.director = director;
}
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public int getYear() {
return year;
}
public void setYear(int year) {
this.year = year;
}
}
package org.superbiz.injection.tx;
import javax.ejb.Stateful;
import javax.ejb.TransactionAttribute;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.persistence.Query;
import java.util.List;
import static javax.ejb.TransactionAttributeType.MANDATORY;
//START SNIPPET: code
@Stateful(name = "Movies")
@TransactionAttribute(MANDATORY)
public class Movies {
@PersistenceContext(unitName = "movie-unit", type = PersistenceContextType.TRANSACTION)
private EntityManager entityManager;
public void addMovie(Movie movie) throws Exception {
entityManager.persist(movie);
}
public void deleteMovie(Movie movie) throws Exception {
entityManager.remove(movie);
}
public List<Movie> getMovies() throws Exception {
Query query = entityManager.createQuery("SELECT m from Movie as m");
return query.getResultList();
}
}
<persistence xmlns="http://java.sun.com/xml/ns/persistence" version="1.0">
<persistence-unit name="movie-unit">
<jta-data-source>movieDatabase</jta-data-source>
<non-jta-data-source>movieDatabaseUnmanaged</non-jta-data-source>
<class>org.superbiz.injection.tx.Movie</class>
<properties>
<property name="openjpa.jdbc.SynchronizeMappings" value="buildSchema(ForeignKeys=true)"/>
</properties>
</persistence-unit>
</persistence>
package org.superbiz.injection.tx;
import junit.framework.TestCase;
import javax.ejb.EJB;
import javax.ejb.Stateless;
import javax.ejb.TransactionAttribute;
import javax.ejb.embeddable.EJBContainer;
import java.util.List;
import java.util.Properties;
import java.util.concurrent.Callable;
import static javax.ejb.TransactionAttributeType.REQUIRES_NEW;
/**
* See the transaction-rollback example as it does the same thing
* via UserTransaction and shows more techniques for rollback
*/
//START SNIPPET: code
public class MoviesTest extends TestCase {
@EJB
private Movies movies;
@EJB
private Caller transactionalCaller;
protected void setUp() throws Exception {
final Properties p = new Properties();
p.put("movieDatabase", "new://Resource?type=DataSource");
p.put("movieDatabase.JdbcDriver", "org.hsqldb.jdbcDriver");
p.put("movieDatabase.JdbcUrl", "jdbc:hsqldb:mem:moviedb");
EJBContainer.createEJBContainer(p).getContext().bind("inject", this);
}
private void doWork() throws Exception {
movies.addMovie(new Movie("Quentin Tarantino", "Reservoir Dogs", 1992));
movies.addMovie(new Movie("Joel Coen", "Fargo", 1996));
movies.addMovie(new Movie("Joel Coen", "The Big Lebowski", 1998));
List<Movie> list = movies.getMovies();
assertEquals("List.size()", 3, list.size());
for (Movie movie : list) {
movies.deleteMovie(movie);
}
assertEquals("Movies.getMovies()", 0, movies.getMovies().size());
}
public void testWithTransaction() throws Exception {
transactionalCaller.call(new Callable() {
public Object call() throws Exception {
doWork();
return null;
}
});
}
public void testWithoutTransaction() throws Exception {
try {
doWork();
fail("The Movies bean should be using TransactionAttributeType.MANDATORY");
} catch (javax.ejb.EJBTransactionRequiredException e) {
// good, our Movies bean is using TransactionAttributeType.MANDATORY as we want
}
}
public static interface Caller {
public <V> V call(Callable<V> callable) throws Exception;
}
/**
* This little bit of magic allows our test code to execute in
* the scope of a container controlled transaction.
*/
@Stateless
@TransactionAttribute(REQUIRES_NEW)
public static class TransactionBean implements Caller {
public <V> V call(Callable<V> callable) throws Exception {
return callable.call();
}
}
}
------------------------------------------------------- T E S T S ------------------------------------------------------- Running org.superbiz.injection.tx.MoviesTest Apache OpenEJB 4.0.0-beta-1 build: 20111002-04:06 http://openejb.apache.org/ INFO - openejb.home = /Users/dblevins/examples/testing-transactions INFO - openejb.base = /Users/dblevins/examples/testing-transactions INFO - Using 'javax.ejb.embeddable.EJBContainer=true' INFO - Configuring Service(id=Default Security Service, type=SecurityService, provider-id=Default Security Service) INFO - Configuring Service(id=Default Transaction Manager, type=TransactionManager, provider-id=Default Transaction Manager) INFO - Configuring Service(id=movieDatabase, type=Resource, provider-id=Default JDBC Database) INFO - Found EjbModule in classpath: /Users/dblevins/examples/testing-transactions/target/classes INFO - Found EjbModule in classpath: /Users/dblevins/examples/testing-transactions/target/test-classes INFO - Beginning load: /Users/dblevins/examples/testing-transactions/target/classes INFO - Beginning load: /Users/dblevins/examples/testing-transactions/target/test-classes INFO - Configuring enterprise application: /Users/dblevins/examples/testing-transactions INFO - Configuring Service(id=Default Stateful Container, type=Container, provider-id=Default Stateful Container) INFO - Auto-creating a container for bean Movies: Container(type=STATEFUL, id=Default Stateful Container) INFO - Configuring Service(id=Default Stateless Container, type=Container, provider-id=Default Stateless Container) INFO - Auto-creating a container for bean TransactionBean: Container(type=STATELESS, id=Default Stateless Container) INFO - Configuring Service(id=Default Managed Container, type=Container, provider-id=Default Managed Container) INFO - Auto-creating a container for bean org.superbiz.injection.tx.MoviesTest: Container(type=MANAGED, id=Default Managed Container) INFO - Configuring PersistenceUnit(name=movie-unit) INFO - Auto-creating a Resource with id 'movieDatabaseNonJta' of type 'DataSource for 'movie-unit'. INFO - Configuring Service(id=movieDatabaseNonJta, type=Resource, provider-id=movieDatabase) INFO - Adjusting PersistenceUnit movie-unit <non-jta-data-source> to Resource ID 'movieDatabaseNonJta' from 'movieDatabaseUnmanaged' INFO - Enterprise application "/Users/dblevins/examples/testing-transactions" loaded. INFO - Assembling app: /Users/dblevins/examples/testing-transactions INFO - PersistenceUnit(name=movie-unit, provider=org.apache.openjpa.persistence.PersistenceProviderImpl) - provider time 406ms INFO - Jndi(name="java:global/testing-transactions/Movies!org.superbiz.injection.tx.Movies") INFO - Jndi(name="java:global/testing-transactions/Movies") INFO - Jndi(name="java:global/testing-transactions/TransactionBean!org.superbiz.injection.tx.MoviesTest$Caller") INFO - Jndi(name="java:global/testing-transactions/TransactionBean") INFO - Jndi(name="java:global/EjbModule2036741132/org.superbiz.injection.tx.MoviesTest!org.superbiz.injection.tx.MoviesTest") INFO - Jndi(name="java:global/EjbModule2036741132/org.superbiz.injection.tx.MoviesTest") INFO - Created Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container) INFO - Created Ejb(deployment-id=TransactionBean, ejb-name=TransactionBean, container=Default Stateless Container) INFO - Created Ejb(deployment-id=org.superbiz.injection.tx.MoviesTest, ejb-name=org.superbiz.injection.tx.MoviesTest, container=Default Managed Container) INFO - Started Ejb(deployment-id=Movies, ejb-name=Movies, container=Default Stateful Container) INFO - Started Ejb(deployment-id=TransactionBean, ejb-name=TransactionBean, container=Default Stateless Container) INFO - Started Ejb(deployment-id=org.superbiz.injection.tx.MoviesTest, ejb-name=org.superbiz.injection.tx.MoviesTest, container=Default Managed Container) INFO - Deployed Application(path=/Users/dblevins/examples/testing-transactions) INFO - EJBContainer already initialized. Call ejbContainer.close() to allow reinitialization Tests run: 2, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 2.403 sec Results : Tests run: 2, Failures: 0, Errors: 0, Skipped: 0