Hibernate com Oracle erro = could not instantiate id generator

Programação Java
#1

Ai pessoal, será que alguém poderia me dar uma dica ?
Estou usando o Hibernate e “do nada” começou a dar esse erro:

(impl.SessionFactoryImpl
119 ) building session factory
net.sf.hibernate.MappingException: could not instantiate id generator
at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:82)
at net.sf.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:82)

Ivan

#2

Esta é a única mensagem que você recebe em todo o stack trace? Isso ocorre quando o nome da classe do generator está vazia ou é inválido. Algum dos seus mapeamentos está incorreto.

#3

Acho que o problema é que tenho 2 tabelas com chave String, e por isso não coloquei generator. Exemplo :

/** 
 * @hibernate.id
 *  name="sigla"
 * 	type="string" 
 *  column="sexo_sg" 
 */	
public String getSigla() {
	return sigla;
}

Ai vai o trace

(cfg.Environment 478 ) Hibernate 2.1.7
(cfg.Environment 512 ) loaded properties from resource hibernate.properties: {hibernate.connection.driver_class=oracle.jdbc.driver.OracleDriver, hibernate.cglib.use_reflection_optimizer=true, hibernate.cache.provider_class=net.sf.hibernate.cache.EhCacheProvider, hibernate.cache.use_query_cache=true, hibernate.max_fetch_depth=1, hibernate.dialect=net.sf.hibernate.dialect.Oracle9Dialect, hibernate.jdbc.use_streams_for_binary=true, hibernate.jdbc.batch_size=0, hibernate.query.substitutions=true 1, false 0, yes ‘Y’, no ‘N’, hibernate.proxool.pool_alias=pool1, hibernate.connection.username=jFaturamento, hibernate.cache.region_prefix=hibernate.test, hibernate.connection.url=jdbc:oracle:thin:@192.107.179.221:1521:PRD, hibernate.show_sql=true, hibernate.connection.password=jFat, hibernate.jdbc.batch_versioned_data=true, hibernate.connection.pool_size=1}
(cfg.Environment 537 ) using java.io streams to persist binary types
(cfg.Environment 538 ) using CGLIB reflection optimizer
(cfg.Environment 567 ) using JDK 1.4 java.sql.Timestamp handling
(cfg.Configuration 900 ) configuring from resource: /hibernate.cfg.xml
(cfg.Configuration 872 ) Configuration resource: /hibernate.cfg.xml
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/Paciente.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.Paciente -> AGENDA.PICR_PACIENTE
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/Sexo.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.Sexo -> AGENDA.PICR_SEXO
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/EstadoCivil.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.EstadoCivil -> AGENDA.PICR_ESTADO_CIVIL
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/OcupacaoProfissional.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.OcupacaoProfissional -> AGENDA.PICR_OCUPACAO
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/Cor.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.Cor -> AGENDA.PICR_COR
(cfg.Configuration 331 ) Mapping resource: br/usp/hcnet/icr/his/modelo/GrauDeInstrucao.hbm.xml
(cfg.Binder 230 ) Mapping class: br.usp.hcnet.icr.his.modelo.GrauDeInstrucao -> AGENDA.PICR_GRAU_INSTRUCAO
(cfg.Configuration 1058) Configured SessionFactory: SessionFactoryDB
(cfg.Configuration 632 ) processing one-to-many association mappings
(cfg.Binder 1182) Mapping collection: br.usp.hcnet.icr.his.modelo.Sexo.pacientes -> AGENDA.PICR_SEXO
(cfg.Binder 1182) Mapping collection: br.usp.hcnet.icr.his.modelo.EstadoCivil.pacientes -> AGENDA.PICR_ESTADO_CIVIL
(cfg.Binder 1182) Mapping collection: br.usp.hcnet.icr.his.modelo.OcupacaoProfissional.pacientes -> AGENDA.PICR_OCUPACAO
(cfg.Binder 1182) Mapping collection: br.usp.hcnet.icr.his.modelo.Cor.pacientes -> AGENDA.PICR_COR
(cfg.Binder 1182) Mapping collection: br.usp.hcnet.icr.his.modelo.GrauDeInstrucao.pacientes -> AGENDA.PICR_GRAU_INSTRUCAO
(cfg.Configuration 641 ) processing one-to-one association property references
(cfg.Configuration 666 ) processing foreign key constraints
(dialect.Dialect 86 ) Using dialect: net.sf.hibernate.dialect.Oracle9Dialect
(cfg.SettingsFactory 70 ) Maximim outer join fetch depth: 1
(cfg.SettingsFactory 74 ) Use outer join fetching: true
(connection.DriverManagerConnectionProvider 42 ) Using Hibernate built-in connection pool (not for production use!)
(connection.DriverManagerConnectionProvider 43 ) Hibernate connection pool size: 1
(connection.DriverManagerConnectionProvider 77 ) using driver: oracle.jdbc.driver.OracleDriver at URL: jdbc:oracle:thin:@192.107.179.221:1521:PRD
(connection.DriverManagerConnectionProvider 78 ) connection properties: {user=agenda, password=astro}
(transaction.TransactionFactoryFactory 31 ) Transaction strategy: net.sf.hibernate.transaction.JDBCTransactionFactory
(transaction.TransactionManagerLookupFactory 33 ) No TransactionManagerLookup configured (in JTA environment, use of process level read-write cache is not recommended)
(cfg.SettingsFactory 114 ) Use scrollable result sets: true
(cfg.SettingsFactory 117 ) Use JDBC3 getGeneratedKeys(): false
(cfg.SettingsFactory 120 ) Optimize cache for minimal puts: false
(cfg.SettingsFactory 129 ) Query language substitutions: {no=‘N’, true=1, yes=‘Y’, false=0}
(cfg.SettingsFactory 140 ) cache provider: net.sf.hibernate.cache.EhCacheProvider
(cfg.SettingsFactory 152 ) query cache factory: net.sf.hibernate.cache.StandardQueryCacheFactory
(cfg.Configuration 1121) instantiating and configuring caches
(impl.SessionFactoryImpl 119 ) building session factory
net.sf.hibernate.MappingException: could not instantiate id generator
at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:82)
at net.sf.hibernate.mapping.SimpleValue.createIdentifierGenerator(SimpleValue.java:82)
at net.sf.hibernate.persister.AbstractEntityPersister.(AbstractEntityPersister.java:645)
at net.sf.hibernate.persister.EntityPersister.(EntityPersister.java:692)
at net.sf.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:42)
at net.sf.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:137)
at net.sf.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:796)
at br.usp.hcnet.icr.his.dao.Conexao.abre(Conexao.java:24)
at br.usp.hcnet.icr.his.modelo.Paciente.getInstancia(Paciente.java:279)
at br.usp.hcnet.icr.his.teste.testeTelaGrafica.main(testeTelaGrafica.java:25)
Caused by: java.lang.ClassNotFoundException:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at net.sf.hibernate.util.ReflectHelper.classForName(ReflectHelper.java:102)
at net.sf.hibernate.id.IdentifierGeneratorFactory.create(IdentifierGeneratorFactory.java:76)
… 9 more
Exception in thread “main” java.lang.NullPointerException
at br.usp.hcnet.icr.his.modelo.Paciente.getInstancia(Paciente.java:282)
at br.usp.hcnet.icr.his.teste.testeTelaGrafica.main(testeTelaGrafica.java:25)

#4

Você precisa definir o generator-class como assigned nesses casos.

#5

Vou tentar, valeu pela dica!

Essa comunidade é 10 !!!

#6

Valeu Michael, funcionou em cima !

#7