Manipulation d'objets entite avec EntityManager
DADOUQUEEN
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KX Messages postés 19031 Statut Modérateur -
KX Messages postés 19031 Statut Modérateur -
Bonjour, j'ai developpé une petite application javaSE,sous netbeans, j'ai crée des classes àn partir de la base (JPA: eclipseLink), mais lors de l'execution l'erreur suivante m'a gené SVP qui peut m'aider
1 réponse
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Bonjour,
Ça aurait été plus simple que tu copies-colles l'exception plutôt que mettre une impression écran...
En plus l'erreur est pour le moins explicite : tu as associé l'attribut salary avec un type int avec une colonne de type Blob ce qui est incompatible.
Remarque : la JPA c'est déjà du Java EE...La confiance n'exclut pas le contrôle-
j'ai modifié le type de salaire mais l'erreur persiste et si je clique sur (SimpleJPAA.java:29) le curseur est posé sur la ligne suivante :
EntityManagerFactory emf=javax.persistence.Persistence.createEntityManagerFactory("SimpleJPAAPU");
run: Exception in thread "main" Local Exception Stack: Exception [EclipseLink-30005] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.PersistenceUnitLoadingException Exception Description: An exception was thrown while searching for persistence archives with ClassLoader: sun.misc.Launcher$AppClassLoader@10b4b2f Internal Exception: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException Exception Description: Predeployment of PersistenceUnit [SimpleJPAAPU] failed. Internal Exception: Exception [EclipseLink-7164] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException Exception Description: The type [class long] for the attribute [salary] on the entity class [class entity.Emp] is not a valid type for a lob mapping. For a lob of type BLOB, the attribute must be defined as a java.sql.Blob, byte[], Byte[] or a Serializable type. For a lob of type CLOB, the attribute must be defined as a java.sql.Clob, char[], Character[] or String type. at org.eclipse.persistence.exceptions.PersistenceUnitLoadingException.exceptionSearchingForPersistenceResources(PersistenceUnitLoadingException.java:127) at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:107) at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactory(PersistenceProvider.java:177) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:79) at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:54) at simplejpaa.SimpleJPAA.main(SimpleJPAA.java:29) Caused by: javax.persistence.PersistenceException: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException Exception Description: Predeployment of PersistenceUnit [SimpleJPAAPU] failed. Internal Exception: Exception [EclipseLink-7164] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException Exception Description: The type [class long] for the attribute [salary] on the entity class [class entity.Emp] is not a valid type for a lob mapping. For a lob of type BLOB, the attribute must be defined as a java.sql.Blob, byte[], Byte[] or a Serializable type. For a lob of type CLOB, the attribute must be defined as a java.sql.Clob, char[], Character[] or String type. at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.createPredeployFailedPersistenceException(EntityManagerSetupImpl.java:1954) at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1945) at org.eclipse.persistence.internal.jpa.deployment.JPAInitializer.callPredeploy(JPAInitializer.java:98) at org.eclipse.persistence.jpa.PersistenceProvider.createEntityManagerFactoryImpl(PersistenceProvider.java:96) ... 4 more Caused by: Exception [EclipseLink-28018] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.EntityManagerSetupException Exception Description: Predeployment of PersistenceUnit [SimpleJPAAPU] failed. Internal Exception: Exception [EclipseLink-7164] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException Exception Description: The type [class long] for the attribute [salary] on the entity class [class entity.Emp] is not a valid type for a lob mapping. For a lob of type BLOB, the attribute must be defined as a java.sql.Blob, byte[], Byte[] or a Serializable type. For a lob of type CLOB, the attribute must be defined as a java.sql.Clob, char[], Character[] or String type. at org.eclipse.persistence.exceptions.EntityManagerSetupException.predeployFailed(EntityManagerSetupException.java:230) ... 8 more Caused by: Exception [EclipseLink-7164] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.ValidationException Exception Description: The type [class long] for the attribute [salary] on the entity class [class entity.Emp] is not a valid type for a lob mapping. For a lob of type BLOB, the attribute must be defined as a java.sql.Blob, byte[], Byte[] or a Serializable type. For a lob of type CLOB, the attribute must be defined as a java.sql.Clob, char[], Character[] or String type. at org.eclipse.persistence.exceptions.ValidationException.invalidTypeForLOBAttribute(ValidationException.java:1132) at org.eclipse.persistence.internal.jpa.metadata.converters.LobMetadata.process(LobMetadata.java:124) at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.MappingAccessor.processLob(MappingAccessor.java:1707) at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.BasicAccessor.processLob(BasicAccessor.java:524) at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.MappingAccessor.processMappingConverter(MappingAccessor.java:1771) at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.MappingAccessor.processMappingValueConverter(MappingAccessor.java:1796) at org.eclipse.persistence.internal.jpa.metadata.accessors.mappings.BasicAccessor.process(BasicAccessor.java:419) at org.eclipse.persistence.internal.jpa.metadata.MetadataDescriptor.processMappingAccessors(MetadataDescriptor.java:1536) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.ClassAccessor.processMappingAccessors(ClassAccessor.java:1648) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.processMappingAccessors(EntityAccessor.java:1234) at org.eclipse.persistence.internal.jpa.metadata.accessors.classes.EntityAccessor.process(EntityAccessor.java:697) at org.eclipse.persistence.internal.jpa.metadata.MetadataProject.processStage2(MetadataProject.java:1793) at org.eclipse.persistence.internal.jpa.metadata.MetadataProcessor.processORMMetadata(MetadataProcessor.java:576) at org.eclipse.persistence.internal.jpa.deployment.PersistenceUnitProcessor.processORMetadata(PersistenceUnitProcessor.java:585) at org.eclipse.persistence.internal.jpa.EntityManagerSetupImpl.predeploy(EntityManagerSetupImpl.java:1869) ... 6 more Java Result: 1 BUILD SUCCESSFUL (total time: 10 seconds)
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Tu as changé le type int en long mais le problème est le même, ce n'est pas compatible avec une colonne de type blob. C'est marqué dans ta log d'erreur :
Description: The type [class long] for the attribute [salary] on the entity class [class entity.Emp] is not a valid type for a lob mapping.
For a lob of type BLOB, the attribute must be defined as a java.sql.Blob, byte[], Byte[] or a Serializable type. For a lob of type CLOB, the attribute must be defined as a java.sql.Clob, char[], Character[] or String type.
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