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我试图复制一个持久对象并修改它,然后持久化(插入新记录),但不起作用!
例如:
对象A(持久)
对象 B = 复制 (A)
修改B
插入B//错误
以下是我的代码片段,无论如何,谢谢!
映射:
@Table(name="rbatb02_roteiro_modelo",schema="rbasm001")
public class ModeloRoteiroVO implements Serializable {
/**
*
*/
private static final long serialVersionUID = -8184929358916648526L;
@Id
@GeneratedValue(generator="rbasq02_rbatb02_roteiro_modelo", strategy=GenerationType.SEQUENCE)
@SequenceGenerator(name="rbasq02_rbatb02_roteiro_modelo",schema="rbasm001",sequenceName="rbasq02_rbatb02_roteiro_modelo",allocationSize=1)
@Column(name="nu_roteiro_modelo")
private Long id;
@JoinColumn(name="nu_roteiro_copiado",referencedColumnName="nu_roteiro_modelo")
@OneToOne
private ModeloRoteiroVO modeloRoteiroPai;
@JoinColumn(name="nu_perfil",referencedColumnName="nu_perfil")
@ManyToOne
private PerfilVO perfil;
@Column(name="no_roteiro", length=100)
private String nome;
@Column(name="de_roteiro",length=255)
private String descricao;
@Column(name="ic_publicado",length=1)
@Enumerated(EnumType.STRING)
private SituacaoModeloRoteiroEnum situacaoModeloRoteiro;
@Column(name="IC_TIPO_MODELO",length=1)
@Enumerated(EnumType.STRING)
private TipoModeloRoteiroEnum tipoModeloRoteiro;
@Column(name="nu_versao")
private Long numeroVersao;
@Fetch(FetchMode.SELECT)
@OneToMany(fetch=FetchType.EAGER,mappedBy="modeloRoteiro",cascade=CascadeType.ALL,orphanRemoval=true)
private List<ModeloFaseVO> fases;
@Fetch(FetchMode.SELECT)
@OneToMany(fetch=FetchType.EAGER,mappedBy="modeloRoteiro",cascade=CascadeType.ALL,orphanRemoval=true)
private List<MensagemModeloRoteiroVO> mensagensModelosRoteiro;
public ModeloRoteiroVO() {
// TODO Auto-generated constructor stub
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (!(obj instanceof ModeloRoteiroVO)) {
return false;
}
ModeloRoteiroVO objConvertido = (ModeloRoteiroVO) obj;
return this.getId().equals(objConvertido.getId());
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public ModeloRoteiroVO getModeloRoteiroPai() {
return modeloRoteiroPai;
}
public void setModeloRoteiroPai(ModeloRoteiroVO modeloRoteiroPai) {
this.modeloRoteiroPai = modeloRoteiroPai;
}
public PerfilVO getPerfil() {
return perfil;
}
public void setPerfil(PerfilVO perfil) {
this.perfil = perfil;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getDescricao() {
return descricao;
}
public void setDescricao(String descricao) {
this.descricao = descricao;
}
public TipoModeloRoteiroEnum getTipoModeloRoteiro() {
return tipoModeloRoteiro;
}
public void setTipoModeloRoteiro(TipoModeloRoteiroEnum tipoModeloRoteiro) {
this.tipoModeloRoteiro = tipoModeloRoteiro;
}
public Long getNumeroVersao() {
return numeroVersao;
}
public void setNumeroVersao(Long numeroVersao) {
this.numeroVersao = numeroVersao;
}
public List<ModeloFaseVO> getFases() {
return fases;
}
public void setFases(List<ModeloFaseVO> fases) {
this.fases = fases;
}
public List<MensagemModeloRoteiroVO> getMensagensModelosRoteiro() {
return mensagensModelosRoteiro;
}
public void setMensagensModelosRoteiro(
List<MensagemModeloRoteiroVO> mensagensModelosRoteiro) {
this.mensagensModelosRoteiro = mensagensModelosRoteiro;
}
public SituacaoModeloRoteiroEnum getSituacaoModeloRoteiro() {
return situacaoModeloRoteiro;
}
public void setSituacaoModeloRoteiro(
SituacaoModeloRoteiroEnum situacaoModeloRoteiro) {
this.situacaoModeloRoteiro = situacaoModeloRoteiro;
}
@Override
public String toString() {
return "ModeloRoteiro [id=" + id + "]";
}
}
@TransactionAttribute(TransactionAttributeType.NOT_SUPPORTED)
public ModeloRoteiroVO copiarModeloDeRoteiroEmModoTransiente(
ModeloRoteiroVO modeloRoteiroVO)
throws IllegalAccessException, InvocationTargetException {
ModeloRoteiroVO modeloPai = this.findById(modeloRoteiroVO.getId());
//sobrescrever id para nulo
modeloRoteiroVO.setId(null);
modeloRoteiroVO.setModeloRoteiroPai(modeloPai);
List<ModeloFaseVO> listaAux = new ArrayList<ModeloFaseVO>(modeloRoteiroVO.getFases());
for (ModeloFaseVO fase : listaAux) {
//sobrescrever id
fase.setId(null);
List<ModeloAtividadeVO> listaAuxAtiv=new ArrayList<ModeloAtividadeVO(fase.getAtividades());
for (ModeloAtividadeVO modeloAtividadeVO : listaAuxAtiv) {
//sobrescrever id
modeloAtividadeVO.setId(null);
List<OpcaoRespostaAtividadeVO> opcoes = new ArrayList<OpcaoRespostaAtividadeVO>(modeloAtividadeVO.getOpcaoRespostaAtividades());
for (OpcaoRespostaAtividadeVO opcaoResposta : opcoes) {
//sobrescrever id para nulo
opcaoResposta.setId(null);
}
modeloAtividadeVO.setOpcaoRespostaAtividades(opcoes);
}
fase.setAtividades(listaAuxAtiv);
}
modeloRoteiroVO.setFases(listaAux);
List<MensagemModeloRoteiroVO> listaAuxMensagem = new ArrayList<MensagemModeloRoteiroVO>(modeloRoteiroVO.getMensagensModelosRoteiro());
for (MensagemModeloRoteiroVO mensagemModeloRoteiroVO : listaAuxMensagem) {
mensagemModeloRoteiroVO.setId(null);
}
modeloRoteiroVO.setMensagensModelosRoteiro(listaAuxMensagem);
return modeloRoteiroVO;
}
public void publicar(ModeloRoteiroVO modeloRoteiroVO){
modeloRoteiroVO = saveImpl(modeloRoteiroVO);
}
ModeloRoteiroVO copia =service.copiarModeloDeRoteiroEmModoTransiente(getInstance());//managed
service.publicar(copia);//Error
堆栈跟踪:
Caused by: javax.transaction.RollbackException: ARJUNA016053: Could not commit transaction.
at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1177)
at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:117)
at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)
at org.jboss.as.ejb3.tx.CMTTxInterceptor.endTransaction(CMTTxInterceptor.java:92) [jboss-as-ejb3-7.1.1.Final.jar:7.1.1.Final]
... 89 more
Caused by: javax.persistence.PersistenceException: org.hibernate.HibernateException: Don't change the reference to a collection with cascade="all-delete-orphan": br.gov.caixa.gitecsa.vo.ModeloFaseVO.fases
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1361) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1289) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1295) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.ejb.AbstractEntityManagerImpl$CallbackExceptionMapperImpl.mapManagedFlushFailure(AbstractEntityManagerImpl.java:1481) [hibernate-entitymanager-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:109) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)
at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)
at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:164)
at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1165)
... 92 more
Caused by: org.hibernate.HibernateException: Don't change the reference to a collection with cascade="all-delete-orphan": br.gov.caixa.gitecsa.vo.ModeloFaseVO.fases
at org.hibernate.engine.internal.Collections.prepareCollectionForUpdate(Collections.java:241) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.internal.Collections.processReachableCollection(Collections.java:201) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.FlushVisitor.processCollection(FlushVisitor.java:59) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:121) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.AbstractVisitor.processValue(AbstractVisitor.java:82) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:76) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:159) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:225) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1081) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:315) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:104) [hibernate-core-4.0.1.Final.jar:4.0.1.Final]
... 98 more
最佳答案
如果您想复制现有实体 - 修改它 - 并将其另存为新实体,那么您需要深度复制该对象。
您可以通过序列化然后反序列化该对象来深度复制该对象。
现在这个新对象只是一个副本,不会有任何对原始对象的引用。您可以修改这个新副本并再次插入。
进行深度复制的代码,
public Object deepCopy(Object input) {
Object output = null;
try {
// Writes the object
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
ObjectOutputStream objectOutputStream = new ObjectOutputStream(byteArrayOutputStream);
objectOutputStream.writeObject(input);
// Reads the object
ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(byteArrayOutputStream.toByteArray());
ObjectInputStream objectInputStream = new ObjectInputStream(byteArrayInputStream);
output = objectInputStream.readObject();
} catch (Exception e) {
e.printStackTrace();
}
return output;
}
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