Colega,
passei um bom tempo pesquisando e testando alguns codigo, mas nada me ajudou a resolver.
Não consigo criar tabelas no postgres com campos do tipo serial usando o hibernate.
Ja tentei a opção GenerationType.IDENTITY, GenerationType.SEQUENCE, GenerationType.AUTO, mas da sempre o mesmo erro.
Recebi a menssagem:
Caused by: org.postgresql.util.PSQLException: ERROR: relation “sequence” does not exist
Abaixo o que ja fiz, para facilitar o entendimento
PERSISTENTE.XML
<?xml version="1.0" encoding="UTF-8"?>
<persistence version="2.1" xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd">
<persistence-unit name="AgenciaFreteBem" transaction-type="RESOURCE_LOCAL">
<class>com.agenciafretebem.model.Grupo</class>
<!-- se determinada entidade não estiver participando da query ela vai ser excluida do trabalho -->
<exclude-unlisted-classes>true</exclude-unlisted-classes>
<properties>
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/agencia"/>
<property name="javax.persistence.jdbc.user" value="postgres"/>
<property name="javax.persistence.jdbc.password" value="pgteste"/>
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"/>
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/>
<property name="hibernate.connection.autocommit" value="false"/>
<property name="hibernate.show_sql" value="true"/>
<property name="hibernate.hbm2ddl.auto" value="create"/>
</properties>
</persistence-unit>
</persistence>CLASSE GRUPO
package com.agenciafretebem.model;
import java.io.Serializable;
import javax.persistence.*;
import javax.validation.constraints.NotNull;
import com.agenciafretebem.tipo.StatusEntidade;
import static javax.persistence.EnumType.STRING;
/**
* The persistent class for the grupo database table.
*
*/
@Entity
@Table(name="grupo")
public class Grupo implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.IDENTITY, generator="grupo_id_seq")
@SequenceGenerator(name="grupo_id_seq", sequenceName="grupo_id_seq", allocationSize=1)
@Column(name = "idgrupo")
private Integer idgrupo;
@NotNull
@Column(length=100)
private String nomegrupo;
@NotNull
@Column(columnDefinition="text")
private String descricao;
@NotNull
@Enumerated(STRING)
private StatusEntidade ativo;
public Grupo() {
}
public Integer getIdgrupo() {
return idgrupo;
}
public void setIdgrupo(Integer idgrupo) {
this.idgrupo = idgrupo;
}
public String getNomegrupo() {
return nomegrupo;
}
public void setNomegrupo(String nomegrupo) {
this.nomegrupo = nomegrupo;
}
public String getDescricao() {
return descricao;
}
public void setDescricao(String descricao) {
this.descricao = descricao;
}
public StatusEntidade getAtivo() {
return ativo;
}
public void setAtivo(StatusEntidade ativo) {
this.ativo = ativo;
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((idgrupo == null) ? 0 : idgrupo.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
Grupo other = (Grupo) obj;
if (idgrupo == null) {
if (other.idgrupo != null)
return false;
} else if (!idgrupo.equals(other.idgrupo))
return false;
return true;
}
}CLASSE PARA TESTAR E CRIAR TABELA
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Persistence;
import com.agenciafretebem.model.Grupo;
import com.agenciafretebem.tipo.StatusEntidade;
public class Teste {
public static void main(String[] args) {
EntityManagerFactory factory = Persistence
.createEntityManagerFactory("AgenciaFreteBem");
EntityManager manager = factory.createEntityManager();
EntityTransaction trx = manager.getTransaction();
trx.begin();
Grupo g = new Grupo();
g.setNomegrupo("administrador");
g.setDescricao("Este grupo tem acesso irrestrido ao sistema");
g.setAtivo(StatusEntidade.S);
manager.persist(g);
trx.commit();
}
}ERRO GERADO A TENTAR CRIAR A TABELA
log4j:WARN No appenders could be found for logger (org.jboss.logging).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
[EL Info]: 2014-11-15 10:07:38.129--ServerSession(31050501)--EclipseLink, version: Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd
[EL Info]: connection: 2014-11-15 10:07:38.679--ServerSession(31050501)--file:/D:/eclipseMars/workspace/AgenciaFreteBem/target/classes/_AgenciaFreteBem login successful
[EL Warning]: 2014-11-15 10:07:38.789--ClientSession(23996442)--Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: org.postgresql.util.PSQLException: ERROR: relation "sequence" does not exist
Posição: 8
Error Code: 0
Call: UPDATE SEQUENCE SET SEQ_COUNT = SEQ_COUNT + ? WHERE SEQ_NAME = ?
bind => [2 parameters bound]
Query: DataModifyQuery(name="SEQUENCE" sql="UPDATE SEQUENCE SET SEQ_COUNT = SEQ_COUNT + ? WHERE SEQ_NAME = ?")
Exception in thread "main" Local Exception Stack:
Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.5.2.v20140319-9ad6abd): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: org.postgresql.util.PSQLException: ERROR: relation "sequence" does not exist
Posição: 8
Error Code: 0
Call: UPDATE SEQUENCE SET SEQ_COUNT = SEQ_COUNT + ? WHERE SEQ_NAME = ?
bind => [2 parameters bound]
Query: DataModifyQuery(name="SEQUENCE" sql="UPDATE SEQUENCE SET SEQ_COUNT = SEQ_COUNT + ? WHERE SEQ_NAME = ?")
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:340)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.processExceptionForCommError(DatabaseAccessor.java:1611)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeDirectNoSelect(DatabaseAccessor.java:898)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeNoSelect(DatabaseAccessor.java:962)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:631)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:558)
at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:2002)
at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:298)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:242)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelectCall(DatasourceCallQueryMechanism.java:271)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeNoSelect(DatasourceCallQueryMechanism.java:251)
at org.eclipse.persistence.queries.DataModifyQuery.executeDatabaseQuery(DataModifyQuery.java:85)
at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:899)
at org.eclipse.persistence.internal.sessions.AbstractSession.internalExecuteQuery(AbstractSession.java:3214)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1804)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1786)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1751)
at org.eclipse.persistence.sequencing.QuerySequence.update(QuerySequence.java:340)
at org.eclipse.persistence.sequencing.QuerySequence.updateAndSelectSequence(QuerySequence.java:277)
at org.eclipse.persistence.sequencing.StandardSequence.getGeneratedVector(StandardSequence.java:71)
at org.eclipse.persistence.sequencing.DefaultSequence.getGeneratedVector(DefaultSequence.java:163)
at org.eclipse.persistence.sequencing.Sequence.getGeneratedVector(Sequence.java:257)
at org.eclipse.persistence.internal.sequencing.SequencingManager$Preallocation_Transaction_NoAccessor_State.getNextValue(SequencingManager.java:468)
at org.eclipse.persistence.internal.sequencing.SequencingManager.getNextValue(SequencingManager.java:1067)
at org.eclipse.persistence.internal.sequencing.ClientSessionSequencing.getNextValue(ClientSessionSequencing.java:70)
at org.eclipse.persistence.internal.descriptors.ObjectBuilder.assignSequenceNumber(ObjectBuilder.java:361)
at org.eclipse.persistence.internal.descriptors.ObjectBuilder.assignSequenceNumber(ObjectBuilder.java:320)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.assignSequenceNumber(UnitOfWorkImpl.java:486)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNotRegisteredNewObjectForPersist(UnitOfWorkImpl.java:4290)
at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.registerNotRegisteredNewObjectForPersist(RepeatableWriteUnitOfWork.java:518)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.registerNewObjectForPersist(UnitOfWorkImpl.java:4235)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.persist(EntityManagerImpl.java:496)
at Teste.main(Teste.java:27)
Caused by: org.postgresql.util.PSQLException: ERROR: relation "sequence" does not exist