Discussion :

[Baptiste Wicht]

Bonjour,

Je suis en train de me mettre à JPA/Hibernate et j'ai modifié une partie de mon application pour qu'elle utilise JPA. Mais je n'arrive pas à persister une entité. Voici ce que me sort le log :

13:42:52,401 DEBUG SessionImpl:220 - opened session at timestamp: 12105925724
13:42:52,403 DEBUG JDBCTransaction:54 - begin
13:42:52,403 DEBUG ConnectionManager:415 - opening JDBC connection
13:42:52,403 TRACE DriverManagerConnectionProvider:93 - total checked-out connections: 0
13:42:52,403 TRACE DriverManagerConnectionProvider:99 - using pooled JDBC connection, pool size: 0
13:42:52,406 DEBUG JDBCTransaction:59 - current autocommit status: false
13:42:52,406 TRACE JDBCContext:210 - after transaction begin
13:42:52,409 TRACE VersionValue:44 - version unsaved-value strategy UNDEFINED
13:42:52,409 TRACE IdentifierValue:104 - id unsaved-value: 0
13:42:52,409 TRACE AbstractSaveEventListener:489 - transient instance of: org.jtheque.model.od.FilmToBuyImpl
13:42:52,409 TRACE DefaultPersistEventListener:124 - saving transient instance
13:42:52,412 TRACE AbstractSaveEventListener:152 - saving [org.jtheque.model.od.FilmToBuyImpl#<null>]
Exception occurred during event dispatching:
java.lang.NullPointerException
at org.hibernate.ejb.event.EJB3PersistEventListener.invokeSaveLifecycle(EJB3PersistEventListener.java:31)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:176)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:596)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:212)
at org.jtheque.core.persistance.JPAPersistanceContext.saveOrUpdate(JPAPersistanceContext.java:115)
at org.jtheque.model.dao.impl.DaoFilmsToBuy.create(DaoFilmsToBuy.java:69)
at org.jtheque.controllers.impl.ToBuyController.newFilmToBuy(ToBuyController.java:56)
at org.jtheque.view.impl.controllers.actions.tobuy.AcAddFilmToBuy.actionPerformed(AcAddFilmToBuy.java:51)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.Dialog$1.run(Unknown Source)
at java.awt.Dialog$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Dialog.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at java.awt.Window.setVisible(Unknown Source)
at java.awt.Dialog.setVisible(Unknown Source)
at org.jtheque.view.impl.components.frames.SecondaryFrame.display(SecondaryFrame.java:61)
at org.jtheque.controllers.impl.AbstractController.displayView(AbstractController.java:100)
at org.jtheque.view.impl.controllers.actions.tobuy.AcOpenFilmsToBuyView.actionPerformed(AcOpenFilmsToBuyView.java:33)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

et voici le code incriminé :

Code :

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public void saveOrUpdate(Data d) {
		EntityManager em = getEntityManager();
 
		EntityTransaction tr = em.getTransaction();
 
		tr.begin();
 
		if(d.isSaved()){
			em.merge(d);
		} else {
			em.persist(d);
		}
 
		tr.commit();
 
		em.close();
	}

Et voici comment je l'appelle :

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FilmToBuyImpl film = new FilmToBuyImpl();
 
film.setTitle(title);
film.setDate(IntDate.today());
 
daoFilmsToBuy.create(film);

Et voici mon entité :

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@Entity
@Table(name="TEST_FILM_TO_BUY")
public class FilmToBuyImpl extends FilmToBuy {
	....
}

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@MappedSuperclass
public abstract class FilmToBuy extends Data{
	/* Paramètres du film */
	private String title;
	private IntDate date;
 
	/**
         * Return the title. 
         * 
         * @return the title
         */
	@Column(name = "TITLE", length = 100, unique = true, nullable = false)
	public String getTitle() {
		return title;
	}
 
	/**
         * Set a new title to the film. 
         * 
         * @param title the title to set
         */
	public void setTitle(String title) {
		this.title = title;
	}
 
	/**
         * Return the date of the film. 
         * 
         * @return the date
         */
	@org.hibernate.annotations.Type(
		type = "org.jtheque.core.persistance.IntDateUserType"
	)
	@Column(name = "DATE", nullable = false)
	public IntDate getDate() {
		return date;
	}
 
	/**
         * Set the date of the add of the film. 
         * 
         * @param date the date to set
         */
	public void setDate(IntDate date) {
		this.date = date;
	}
}

Code :

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@MappedSuperclass
public abstract class Data implements Element{
	private int id;
	private int version;
 
	...
 
	/**
         * Return the id of this Data. 
         * 
         * @return The id
         */
	@Id
	@Column(name = "ID", nullable = false)
	@GeneratedValue(strategy = GenerationType.AUTO)
	public final int getId(){
		return id;
	}
 
	/**
         * Set the id of this Data. 
         * 
         * @param id The new id to set
         */
	public void setId(int id){
		this.id = id;
	}
 
	/**
         * Return the version of the data. The version is used to use the optimist locking of hibernate. 
         * 
         * @return The version of the data. 
         */
	@Column(name = "VERSION", nullable = false)
	@Version
	public int getVersion() {
		return version;
	}
 
	/**
         * Set the version of the data. 
         * 
         * @param version The version of the data. 
         */
	protected void setVersion(int version) {
		this.version = version;
	}
 
	...
 
	/**
         * Cette méthode permet de savoir si l'objet est enregistrée dans la base de données. 
         * 
         * @return true si l'objet est sauvegardé, sinon false
         */
	@Transient
	public boolean isSaved(){
		return getId() != 0;
	}
 
	...
}

Quelqu'un a-t-il une idée d'ou ça pourrait venir ?

Merci d'avance

[Baptiste Wicht]

Je suis en train de me demander si ça ne pourrait pas venir mon héritage (FilmToBuyImpl hérite de FilmToBuy (MappedSuperClass) qui hérite de Data (MappedSuperClass)). Je ne sais pas si c'est possible de faire ainsi ?

Mais si ça venait de là, est-ce qu'Hibernate ne me l'aurait pas dit au lieu de planter violemment ?

[Baptiste Wicht]

Comme j'ai toujours pas trouvé la cause de l'erreur, j'ai complètement isolé le code posant problème et l'ai encore simplifié pour voir exactement d'ou pourrait venir l'erreur.

En fait, avec un code minimal et une entité toute simple, ça ne marche pas non plus. Voici mon code de test :

Code :

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public class JPATest extends AbstractTest{
	public static void main(String... args){
		LogManager logManager = LogManager.getInstance();
		logManager.init();
 
		Server hsqlServer = null;
		try {
            hsqlServer =(Server) Class.forName("org.hsqldb.Server").newInstance();
 
            PrintWriter writer = new PrintWriter(new ServerLogWriter(hsqlServer.getClass()));
 
            hsqlServer.setLogWriter(writer);
            hsqlServer.setErrWriter(writer);
            hsqlServer.setDatabasePath(0, "localhost/dvd");
            hsqlServer.setDatabaseName(0, "dvd");
            hsqlServer.start();
        } catch (Exception e1) {
            e1.printStackTrace();
        }
 
		Ejb3Configuration config = new Ejb3Configuration();
 
		config.addAnnotatedClass(TestEntity.class);
 
		config.setProperty("hibernate.show_sql", "true");
		config.setProperty("hibernate.format_sql", "true");
		config.setProperty("use_sql_comments", "false");
 
		config.setProperty("hibernate.connection.driver_class", "org.hsqldb.jdbcDriver");
		config.setProperty("hibernate.connection.url", "jdbc:hsqldb:hsql://localhost/dvd");
		config.setProperty("hibernate.connection.username", "sa");
		config.setProperty("hibernate.connection.password", "");
 
		config.setProperty("hibernate.dialect", "org.hibernate.dialect.HSQLDialect");
 
		config.setProperty("hibernate.hbm2ddl.auto", "update");
 
		EntityManagerFactory emf = config.buildEntityManagerFactory();
 
		EntityManager em = emf.createEntityManager();
 
		TestEntity entity = new TestEntity();
		entity.setTitle("Bonjour");
 
		try{
			em.persist(entity);
		} catch(NullPointerException e){
			e.printStackTrace();
		}
 
		em.close();
 
		emf.close();
 
		hsqlServer.stop();
 
		logManager.close();
 
		System.exit(0);
	}
}

et voici l'entité telle que je l'ai créée :

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@Entity
@Table(name="TEST")
public class TestEntity {
	private String title;
	private int id;
	private int version;
 
	@Column(name = "TITLE", length = 100, unique = true, nullable = false)
	public String getTitle() {
		return title;
	}
 
	public void setTitle(String title) {
		this.title = title;
	}
 
	@Id
	@Column(name = "ID", nullable = false)
	@GeneratedValue(strategy = GenerationType.AUTO)
	public final int getId(){
		return id;
	}
 
	public void setId(int id){
		this.id = id;
	}
 
	@Column(name = "VERSION", nullable = false)
	@Version
	public int getVersion() {
		return version;
	}
 
	public void setVersion(int version) {
		this.version = version;
	}
}

et voici la trace complète avec l'erreur à la fin :

21:16:30,817 INFO Version:15 - Hibernate EntityManager 3.2.0.CR3
21:16:30,831 INFO Version:15 - Hibernate Annotations 3.2.0.CR3
21:16:30,837 INFO Environment:500 - Hibernate 3.2.0.cr5
21:16:30,840 INFO Environment:533 - hibernate.properties not found
21:16:30,841 INFO Environment:667 - Bytecode provider name : cglib
21:16:30,844 INFO Environment:584 - using JDK 1.4 java.sql.Timestamp handling
21:16:30,971 DEBUG NamingHelper:30 - Not Ejb3Configuration to JNDI, no JNDI name configured
21:16:30,973 DEBUG Configuration:1209 - Preparing to build session factory with filters : {}
21:16:30,973 DEBUG AnnotationConfiguration:235 - Execute first pass mapping processing
21:16:31,013 DEBUG AnnotationConfiguration:435 - Process hbm files
21:16:31,013 DEBUG AnnotationConfiguration:443 - Process annotated classes
21:16:31,016 INFO AnnotationBinder:387 - Binding entity from annotated class: org.jtheque.tests.techno.jpa.TestEntity
21:16:31,032 DEBUG Ejb3Column:161 - Binding column DTYPE unique false
21:16:31,045 DEBUG EntityBinder:212 - Import with entity name=TestEntity
21:16:31,050 INFO EntityBinder:340 - Bind entity org.jtheque.tests.techno.jpa.TestEntity on table TEST
21:16:31,055 DEBUG AnnotationBinder:940 - Processing org.jtheque.tests.techno.jpa.TestEntity property annotation
21:16:31,074 DEBUG AnnotationBinder:1032 - Processing annotations of org.jtheque.tests.techno.jpa.TestEntity.id
21:16:31,076 DEBUG Ejb3Column:161 - Binding column ID unique false
21:16:31,076 DEBUG AnnotationBinder:1153 - id is an id
21:16:31,080 DEBUG SimpleValueBinder:220 - building SimpleValue for id
21:16:31,083 DEBUG PropertyBinder:122 - Building property id
21:16:31,087 DEBUG PropertyBinder:155 - Cascading id with null
21:16:31,087 DEBUG AnnotationBinder:1186 - Bind @Id on id
21:16:31,087 DEBUG AnnotationBinder:1032 - Processing annotations of org.jtheque.tests.techno.jpa.TestEntity.title
21:16:31,087 DEBUG Ejb3Column:161 - Binding column TITLE unique true
21:16:31,088 DEBUG PropertyBinder:102 - binding property title with lazy=false
21:16:31,088 DEBUG SimpleValueBinder:220 - building SimpleValue for title
21:16:31,088 DEBUG PropertyBinder:122 - Building property title
21:16:31,088 DEBUG PropertyBinder:155 - Cascading title with null
21:16:31,088 DEBUG AnnotationBinder:1032 - Processing annotations of org.jtheque.tests.techno.jpa.TestEntity.version
21:16:31,088 DEBUG Ejb3Column:161 - Binding column VERSION unique false
21:16:31,088 DEBUG AnnotationBinder:1203 - version is a version property
21:16:31,088 DEBUG PropertyBinder:102 - binding property version with lazy=false
21:16:31,089 DEBUG SimpleValueBinder:220 - building SimpleValue for version
21:16:31,089 DEBUG PropertyBinder:122 - Building property version
21:16:31,089 DEBUG PropertyBinder:155 - Cascading version with null
21:16:31,089 DEBUG AnnotationBinder:1223 - Version name: version, unsavedValue: undefined
21:16:31,091 DEBUG AnnotationConfiguration:329 - processing manytoone fk mappings
21:16:31,094 DEBUG Configuration:1044 - processing extends queue
21:16:31,094 DEBUG Configuration:1048 - processing collection mappings
21:16:31,094 DEBUG Configuration:1059 - processing native query and ResultSetMapping mappings
21:16:31,094 DEBUG Configuration:1067 - processing association property references
21:16:31,094 DEBUG Configuration:1089 - processing foreign key constraints
21:16:31,105 TRACE ClassValidator:160 - ResourceBundle ValidatorMessages not found in thread context classloader
21:16:31,105 DEBUG ClassValidator:170 - ResourceBundle ValidatorMessages not found in Validator classloader. Delegate to org.hibernate.validator.resources.DefaultValidatorMessages
21:16:31,171 INFO DriverManagerConnectionProvider:41 - Using Hibernate built-in connection pool (not for production use!)
21:16:31,171 INFO DriverManagerConnectionProvider:42 - Hibernate connection pool size: 20
21:16:31,171 INFO DriverManagerConnectionProvider:45 - autocommit mode: false
21:16:31,173 INFO DriverManagerConnectionProvider:80 - using driver: org.hsqldb.jdbcDriver at URL: jdbc:hsqldb:hsql://localhost/dvd
21:16:31,174 INFO DriverManagerConnectionProvider:83 - connection properties: {user=sa, password=}
21:16:31,174 TRACE DriverManagerConnectionProvider:93 - total checked-out connections: 0
21:16:31,174 DEBUG DriverManagerConnectionProvider:109 - opening new JDBC connection
21:16:31,207 DEBUG DriverManagerConnectionProvider:115 - created connection to: jdbc:hsqldb:hsql://localhost/dvd, Isolation Level: 2
21:16:31,228 INFO SettingsFactory:81 - RDBMS: HSQL Database Engine, version: 1.8.0
21:16:31,228 INFO SettingsFactory:82 - JDBC driver: HSQL Database Engine Driver, version: 1.8.0
21:16:31,228 TRACE DriverManagerConnectionProvider:129 - returning connection to pool, pool size: 1
21:16:31,246 INFO Dialect:141 - Using dialect: org.hibernate.dialect.HSQLDialect
21:16:31,251 INFO TransactionFactoryFactory:31 - Using default transaction strategy (direct JDBC transactions)
21:16:31,253 INFO TransactionManagerLookupFactory:33 - No TransactionManagerLookup configured (in JTA environment, use of read-write or transactional second-level cache is not recommended)
21:16:31,253 INFO SettingsFactory:134 - Automatic flush during beforeCompletion(): disabled
21:16:31,253 INFO SettingsFactory:138 - Automatic session close at end of transaction: disabled
21:16:31,253 INFO SettingsFactory:145 - JDBC batch size: 15
21:16:31,253 INFO SettingsFactory:148 - JDBC batch updates for versioned data: disabled
21:16:31,254 INFO SettingsFactory:153 - Scrollable result sets: enabled
21:16:31,254 DEBUG SettingsFactory:157 - Wrap result sets: disabled
21:16:31,254 INFO SettingsFactory:161 - JDBC3 getGeneratedKeys(): disabled
21:16:31,255 INFO SettingsFactory:169 - Connection release mode: auto
21:16:31,255 INFO SettingsFactory:196 - Default batch fetch size: 1
21:16:31,255 INFO SettingsFactory:200 - Generate SQL with comments: disabled
21:16:31,255 INFO SettingsFactory:204 - Order SQL updates by primary key: disabled
21:16:31,256 INFO SettingsFactory:369 - Query translator: org.hibernate.hql.ast.ASTQueryTranslatorFactory
21:16:31,258 INFO ASTQueryTranslatorFactory:24 - Using ASTQueryTranslatorFactory
21:16:31,258 INFO SettingsFactory:212 - Query language substitutions: {}
21:16:31,258 INFO SettingsFactory:217 - JPA-QL strict compliance: disabled
21:16:31,258 INFO SettingsFactory:222 - Second-level cache: enabled
21:16:31,259 INFO SettingsFactory:226 - Query cache: disabled
21:16:31,259 INFO SettingsFactory:356 - Cache provider: org.hibernate.cache.NoCacheProvider
21:16:31,259 INFO SettingsFactory:241 - Optimize cache for minimal puts: disabled
21:16:31,259 INFO SettingsFactory:250 - Structured second-level cache entries: disabled
21:16:31,261 TRACE SQLExceptionConverterFactory:52 - Using dialect defined converter
21:16:31,265 INFO SettingsFactory:270 - Echoing all SQL to stdout
21:16:31,266 INFO SettingsFactory:277 - Statistics: disabled
21:16:31,266 INFO SettingsFactory:281 - Deleted entity synthetic identifier rollback: disabled
21:16:31,266 INFO SettingsFactory:296 - Default entity-mode: pojo
21:16:31,287 TRACE ClassValidator:160 - ResourceBundle ValidatorMessages not found in thread context classloader
21:16:31,287 DEBUG ClassValidator:170 - ResourceBundle ValidatorMessages not found in Validator classloader. Delegate to org.hibernate.validator.resources.DefaultValidatorMessages
21:16:31,296 INFO SessionFactoryImpl:161 - building session factory
21:16:31,297 DEBUG SessionFactoryImpl:173 - Session factory constructed with filter configurations : {}
21:16:31,298 DEBUG SessionFactoryImpl:177 - instantiating session factory with properties: {...}
21:16:31,495 DEBUG AbstractEntityPersister:2673 - Static SQL for entity: org.jtheque.tests.techno.jpa.TestEntity
21:16:31,496 DEBUG AbstractEntityPersister:2678 - Version select: select VERSION from TEST where ID =?
21:16:31,496 DEBUG AbstractEntityPersister:2681 - Snapshot select: select testentity_.ID, testentity_.TITLE as TITLE0_, testentity_.VERSION as VERSION0_ from TEST testentity_ where testentity_.ID=?
21:16:31,496 DEBUG AbstractEntityPersister:2684 - Insert 0: insert into TEST (TITLE, VERSION, ID) values (?, ?, ?)
21:16:31,496 DEBUG AbstractEntityPersister:2685 - Update 0: update TEST set TITLE=?, VERSION=? where ID=? and VERSION=?
21:16:31,496 DEBUG AbstractEntityPersister:2686 - Delete 0: delete from TEST where ID=? and VERSION=?
21:16:31,496 DEBUG AbstractEntityPersister:2690 - Identity insert: insert into TEST (ID, TITLE, VERSION) values (null, ?, ?)
21:16:31,514 DEBUG EntityLoader:79 - Static select for entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,514 DEBUG EntityLoader:79 - Static select for entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,514 DEBUG EntityLoader:79 - Static select for entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,515 DEBUG EntityLoader:79 - Static select for entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,515 DEBUG EntityLoader:79 - Static select for entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,523 DEBUG EntityLoader:34 - Static select for action ACTION_MERGE on entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,523 DEBUG EntityLoader:34 - Static select for action ACTION_REFRESH on entity org.jtheque.tests.techno.jpa.TestEntity: select testentity0_.ID as ID0_0_, testentity0_.TITLE as TITLE0_0_, testentity0_.VERSION as VERSION0_0_ from TEST testentity0_ where testentity0_.ID=?
21:16:31,525 DEBUG SessionFactoryObjectFactory:39 - initializing class SessionFactoryObjectFactory
21:16:31,526 DEBUG SessionFactoryObjectFactory:76 - registered: 4028818519de90070119de9008a30000 (unnamed)
21:16:31,527 INFO SessionFactoryObjectFactory:82 - Not binding factory to JNDI, no JNDI name configured
21:16:31,527 DEBUG SessionFactoryImpl:308 - instantiated session factory
21:16:31,530 INFO SchemaUpdate:115 - Running hbm2ddl schema update
21:16:31,530 INFO SchemaUpdate:126 - fetching database metadata
21:16:31,530 TRACE DriverManagerConnectionProvider:93 - total checked-out connections: 0
21:16:31,530 TRACE DriverManagerConnectionProvider:99 - using pooled JDBC connection, pool size: 0
21:16:31,540 INFO SchemaUpdate:138 - updating schema
21:16:31,540 DEBUG AnnotationConfiguration:235 - Execute first pass mapping processing
21:16:31,540 DEBUG AnnotationConfiguration:435 - Process hbm files
21:16:31,540 DEBUG AnnotationConfiguration:443 - Process annotated classes
21:16:31,540 DEBUG AnnotationConfiguration:329 - processing manytoone fk mappings
21:16:31,541 DEBUG Configuration:1044 - processing extends queue
21:16:31,541 DEBUG Configuration:1048 - processing collection mappings
21:16:31,542 DEBUG Configuration:1059 - processing native query and ResultSetMapping mappings
21:16:31,542 DEBUG Configuration:1067 - processing association property references
21:16:31,542 DEBUG Configuration:1089 - processing foreign key constraints
21:16:31,542 TRACE ClassValidator:160 - ResourceBundle ValidatorMessages not found in thread context classloader
21:16:31,542 DEBUG ClassValidator:170 - ResourceBundle ValidatorMessages not found in Validator classloader. Delegate to org.hibernate.validator.resources.DefaultValidatorMessages
21:16:31,567 INFO TableMetadata:40 - table found: PUBLIC.TEST
21:16:31,567 INFO TableMetadata:41 - columns: [id, title, version]
21:16:31,567 INFO TableMetadata:43 - foreign keys: []
21:16:31,567 INFO TableMetadata:44 - indexes: [sys_idx_sys_ct_71_74, sys_idx_72]
21:16:31,567 INFO SchemaUpdate:160 - schema update complete
21:16:31,574 TRACE DriverManagerConnectionProvider:129 - returning connection to pool, pool size: 1
21:16:31,574 DEBUG SessionFactoryImpl:390 - Checking 0 named HQL queries
21:16:31,574 DEBUG SessionFactoryImpl:410 - Checking 0 named SQL queries
21:16:31,620 DEBUG SessionImpl:220 - opened session at timestamp: 12106197915
21:16:31,623 TRACE VersionValue:44 - version unsaved-value strategy UNDEFINED
21:16:31,623 TRACE IdentifierValue:104 - id unsaved-value: 0
21:16:31,623 TRACE AbstractSaveEventListener:489 - transient instance of: org.jtheque.tests.techno.jpa.TestEntity
21:16:31,623 TRACE DefaultPersistEventListener:124 - saving transient instance
21:16:31,626 TRACE AbstractSaveEventListener:152 - saving [org.jtheque.tests.techno.jpa.TestEntity#<null>]
java.lang.NullPointerException
at org.hibernate.ejb.event.EJB3PersistEventListener.invokeSaveLifecycle(EJB3PersistEventListener.java:31)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:176)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:131)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:87)
at org.hibernate.event.def.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:38)
at org.hibernate.impl.SessionImpl.firePersist(SessionImpl.java:618)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:592)
at org.hibernate.impl.SessionImpl.persist(SessionImpl.java:596)
at org.hibernate.ejb.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:212)
at org.jtheque.tests.techno.jpa.JPATest.main(JPATest.java:59)
21:16:31,629 TRACE SessionImpl:273 - closing session
21:16:31,629 TRACE ConnectionManager:369 - connection already null in cleanup : no action
21:16:31,629 INFO SessionFactoryImpl:767 - closing
21:16:31,630 INFO DriverManagerConnectionProvider:147 - cleaning up connection pool: jdbc:hsqldb:hsql://localhost/dvd

Je pense que ça doit venir de la configuration de JPA/Hibernate, mais je ne voiis pas ce que j'ai fait faux

Quelqu'un a t'il une idée ?

[Baptiste Wicht]

J'ai continué à chercher et j'ai essayé en utilisant un fichier de mapping :

Code :

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public class JPATest extends AbstractTest{
	public static void main(String... args){
		LogManager logManager = LogManager.getInstance();
		logManager.init();
 
		Server hsqlServer = null;
		try {
            hsqlServer =(Server) Class.forName("org.hsqldb.Server").newInstance();
 
            PrintWriter writer = new PrintWriter(new ServerLogWriter(hsqlServer.getClass()));
 
            hsqlServer.setLogWriter(writer);
            hsqlServer.setErrWriter(writer);
            hsqlServer.setDatabasePath(0, "localhost/dvd");
            hsqlServer.setDatabaseName(0, "dvd");
            hsqlServer.start();
        } catch (Exception e1) {
            e1.printStackTrace();
        }
 
        EntityManagerFactory emf = Persistence.createEntityManagerFactory("jpa");
 
		EntityManager em = emf.createEntityManager();
 
		em.getTransaction().begin();
 
		TestEntity entity = new TestEntity();
		entity.setTitle("JPA-3");
 
		try{
			em.persist(entity);
		} catch(NullPointerException e){
			e.printStackTrace();
		}
 
		em.getTransaction().commit();
 
		em.close();
 
		emf.close();
 
		hsqlServer.stop();
 
		logManager.close();
 
		System.exit(0);
	}
}

Code XML :

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<?xml version="1.0" encoding="UTF-8"?>
<persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence">
	<persistence-unit name="jpa" transaction-type="RESOURCE_LOCAL">
		<!--  provider -->
		<provider>org.hibernate.ejb.HibernatePersistence</provider>
 
		<!-- Classes persistantes -->
        <class>org.jtheque.tests.techno.jpa.TestEntity</class>
 
		<properties>
			<property name="hibernate.show_sql" value="true"/>
			<property name="hibernate.format_sql" value="true"/>
			<property name="use_sql_comments" value="false"/>
 
			<!-- connexion JDBC -->
			<property name="hibernate.connection.driver_class" value="org.hsqldb.jdbcDriver" />
			<property name="hibernate.connection.url" value="jdbc:hsqldb:hsql://localhost/dvd" />
			<property name="hibernate.connection.username" value="sa" />
			<property name="hibernate.connection.password" value="" />
 
			<!-- Dialecte -->
			<property name="hibernate.dialect" value="org.hibernate.dialect.HSQLDialect" />
 
			<property name="hibernate.hbm2ddl.auto" value="update" />
 
			<!-- propriétés DataSource c3p0
			<property name="hibernate.c3p0.min_size" value="5" />
			<property name="hibernate.c3p0.max_size" value="20" />
			<property name="hibernate.c3p0.timeout" value="500" />
			<property name="hibernate.c3p0.max_statements" value="100" />
			<property name="hibernate.c3p0.idle_test_period" value="5000" /> -->
		</properties>
	</persistence-unit>
</persistence>

Et cette fois ça marche...

J'ai exactement les même paramètres dans le fichier et dans EJB3Configuration, mais ça doit pas marcher de la même manière

[Baptiste Wicht]

Bon, cette fois, j'ai réussi. J'ai laissé le fichier persistence.xml et j'utilise EJB3Configuration pour aller chercher les propriétés dans le fichier.

J'ai juste encore un problème. Voici ce qu'il me donne durant l'éxécution :

14:53:41,811 DEBUG Ejb3Configuration:522 - Detect class: true; detect hbm: true
14:53:41,827 DEBUG JarVisitor:192 - Searching mapped entities in jar/par: file:/D:/Programmation/Workspaces/Eclipse%20Workspace/JTheque/bin
14:53:41,827 WARN FileZippedJarVisitor:37 - Unable to find file (ignored): file:/D:/Programmation/Workspaces/Eclipse%20Workspace/JTheque/bin
java.io.FileNotFoundException: D:\Programmation\Workspaces\Eclipse Workspace\JTheque\bin (Access is denied)
at java.util.zip.ZipFile.open(Native Method)
at java.util.zip.ZipFile.<init>(Unknown Source)
at java.util.jar.JarFile.<init>(Unknown Source)
at java.util.jar.JarFile.<init>(Unknown Source)
at org.hibernate.ejb.packaging.FileZippedJarVisitor.doProcessElements(FileZippedJarVisitor.java:34)
at org.hibernate.ejb.packaging.JarVisitor.getMatchingEntries(JarVisitor.java:215)
at org.hibernate.ejb.Ejb3Configuration.addMetadataFromVisitor(Ejb3Configuration.java:253)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:229)
at org.jtheque.tests.techno.jpa.JPATest.main(JPATest.java:38)
14:53:41,827 DEBUG Ejb3Configuration:522 - Detect class: true; detect hbm: true

Il a l'air d'essayer de chercher d'autres classes persistantes. C'est possible de désactiver cette recheche automatique ?