java - JPAContainer通过编程方式设置关系？

Question

我有两个实体，并且正在使用 JPAContainer，但我不知道如何与这两个实体建立关系。

这是我的代码

@Entity
@Table(name="curriculum")
public class Curriculum implements Serializable{
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue
    private Long idCurriculum;

    @Temporal(TemporalType.DATE)
    private Date dataCad;

    @Size(min=5, max=50)
    @NotNull
    @NotEmpty   
    private String nome;

    @NotEmpty
    private String sexo;

    @Email
    @NotEmpty
    @NotNull
    @Size(max=250)
    @Column(unique=true)
    private String email;

    @NotNull
    @NotEmpty
    @Size(min=14, max=14)
    @Column(unique=true)
    private String cpf;
}



@Entity
@Table(name="curriculum2")
public class Curriculum2 implements Serializable{
    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue
    private Long idC2; //NOT NULL AUTO_INCREMENT,

    @NotNull @OneToOne @JoinColumn(name="cpf")
    private Curriculum curriculum; //NOT NULL,

    @NotNull @Temporal(TemporalType.DATE)
    private Date dataNasceu; //NOT NULL,

    @NotNull @NotEmpty @Size(min=5, max=50)
    private String cidade; //` varchar(50) NOT NULL,

    @NotNull @NotEmpty @Size(min=5, max=50)
    private String endereco; //` varchar(50) NOT NULL,

    @NotNull 
    private int numero; //` int(11) NOT NULL,

    @NotNull @NotEmpty @Size(min=5, max=50)
    private String bairro; //` varchar(50) NOT NULL,
}


    /** here app UI */
    /** datasource */
    private final CustomJPAContainer<Curriculum2> datasource = new CustomJPAContainer<Curriculum2>(Curriculum2.class);
    private final CustomJPAContainer<Curriculum> dsCurriculum = new CustomJPAContainer<Curriculum>(Curriculum.class);

    /** beans */        
    private final Curriculum2 bean = new Curriculum2();
    private final Curriculum curriculum = dsCurriculum.getItem(22L).getEntity();

    /** beanfieldgroup validation */    
    private final BeanFieldGroup<Curriculum2> binder = new BeanFieldGroup<Curriculum2>(Curriculum2.class);


    public VerticalLayout buildLayout() {
    //mainlayout
    mainLayout = new VerticalLayout();
    mainLayout.setSpacing(true);
    mainLayout.setMargin(true);

    //tab
    tab = new TabSheet();
    tab.setSizeUndefined();
    mainLayout.addComponent(tab);

    //tab1
    vLayout_tab1 = new VerticalLayout();
    vLayout_tab1.setMargin(true);
    vLayout_tab1.setSpacing(true);

    binder.setItemDataSource(bean);
    Field<?> field = null;

    //data nascimento
    field = binder.buildAndBind("Data nascimento", "dataNasceu", PopupDateField.class);
    dataNasceu = (PopupDateField) field;
    dataNasceu.setDateFormat("dd/MM/yyyy");
    vLayout_tab1.addComponent(dataNasceu);

    //cidade 
    field = binder.buildAndBind("Cidade", "cidade", TextUpper.class);
    cidade = (TextUpper) field;
    cidade.setMaxLength(50);
    cidade.setWidth("10cm");
    vLayout_tab1.addComponent(cidade);

    //endereco
    field = binder.buildAndBind("Endereço", "endereco", TextUpper.class);
    endereco = (TextUpper) field;
    endereco.setMaxLength(50);
    endereco.setWidth("10cm");
    vLayout_tab1.addComponent(endereco);

    //numero
    field = binder.buildAndBind("Número", "numero");
    numero = (TextField) field;
    numero.setWidth("2cm");
    numero.selectAll();
    numero.addStyleName("numeros");
    vLayout_tab1.addComponent(numero);

    //bairro
    field = binder.buildAndBind("Bairro", "bairro", TextUpper.class);
    bairro = (TextUpper) field;
    bairro.setWidth("10cm");
    vLayout_tab1.addComponent(bairro);
}

/** 异常 */

15:53:19,600 DEBUG [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] - Cannot add or update a child row: a foreign key constraint fails (`ibgdb`.`curriculum2`, CONSTRAINT `FK_curriculuns2_curriculuns` FOREIGN KEY (`cpf`) REFERENCES `curriculum` (`cpf`) ON UPDATE CASCADE) [n/a]
com.mysql.jdbc.exceptions.jdbc4.MySQLIntegrityConstraintViolationException: Cannot add or update a child row: a foreign key constraint fails (`ibgdb`.`curriculum2`, CONSTRAINT `FK_curriculuns2_curriculuns` FOREIGN KEY (`cpf`) REFERENCES `curriculum` (`cpf`) ON UPDATE CASCADE)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
    at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
    at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
    at com.mysql.jdbc.Util.handleNewInstance(Util.java:411)
    at com.mysql.jdbc.Util.getInstance(Util.java:386)
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1041)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778)
    at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2834)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2156)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2441)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2366)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2350)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractStatementProxyHandler.continueInvocation(AbstractStatementProxyHandler.java:122)
    at org.hibernate.engine.jdbc.internal.proxy.AbstractProxyHandler.invoke(AbstractProxyHandler.java:81)
    at com.sun.proxy.$Proxy30.executeUpdate(Unknown Source)
    at org.hibernate.id.IdentityGenerator$GetGeneratedKeysDelegate.executeAndExtract(IdentityGenerator.java:96)
    at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:58)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2870)
    at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3381)
    at org.hibernate.action.internal.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:81)
    at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
    at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:203)
    at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:183)
    at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:167)
    at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:320)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:287)
    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:193)
    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:126)
    at org.hibernate.ejb.event.EJB3MergeEventListener.saveWithGeneratedId(EJB3MergeEventListener.java:71)
    at org.hibernate.event.internal.DefaultMergeEventListener.saveTransientEntity(DefaultMergeEventListener.java:236)
    at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:216)
    at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:154)
    at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:76)
    at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:904)
    at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:888)
    at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:892)
    at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:879)
    at com.vaadin.addon.jpacontainer.provider.MutableLocalEntityProvider$1.run(MutableLocalEntityProvider.java:141)
    at com.vaadin.addon.jpacontainer.provider.MutableLocalEntityProvider.runInTransaction(MutableLocalEntityProvider.java:120)
    at com.vaadin.addon.jpacontainer.provider.MutableLocalEntityProvider.addEntity(MutableLocalEntityProvider.java:137)
    at com.vaadin.addon.jpacontainer.provider.CachingMutableLocalEntityProvider.addEntity(CachingMutableLocalEntityProvider.java:164)
    at com.vaadin.addon.jpacontainer.JPAContainer.addEntity(JPAContainer.java:1113)
    at br.ind.ibg.views.InformacoesView.buttonClick(InformacoesView.java:328)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.vaadin.event.ListenerMethod.receiveEvent(ListenerMethod.java:508)
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:198)
    at com.vaadin.event.EventRouter.fireEvent(EventRouter.java:161)
    at com.vaadin.server.AbstractClientConnector.fireEvent(AbstractClientConnector.java:969)
    at com.vaadin.ui.Button.fireClick(Button.java:368)
    at com.vaadin.ui.Button$1.click(Button.java:57)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:168)
    at com.vaadin.server.ServerRpcManager.applyInvocation(ServerRpcManager.java:118)
    at com.vaadin.server.communication.ServerRpcHandler.handleBurst(ServerRpcHandler.java:207)
    at com.vaadin.server.communication.ServerRpcHandler.handleRpc(ServerRpcHandler.java:111)
    at com.vaadin.server.communication.UidlRequestHandler.synchronizedHandleRequest(UidlRequestHandler.java:91)
    at com.vaadin.server.SynchronizedRequestHandler.handleRequest(SynchronizedRequestHandler.java:37)
    at com.vaadin.server.VaadinService.handleRequest(VaadinService.java:1382)
    at com.vaadin.server.VaadinServlet.service(VaadinServlet.java:238)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:724)
15:53:19,602 WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] - SQL Error: 1452, SQLState: 23000
15:53:19,602 ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] - Cannot add or update a child row: a foreign key constraint fails (`ibgdb`.`curriculum2`, CONSTRAINT `FK_curriculuns2_curriculuns` FOREIGN KEY (`cpf`) REFERENCES `curriculum` (`cpf`) ON UPDATE CASCADE)
15:53:19,603 DEBUG [org.hibernate.ejb.AbstractEntityManagerImpl] - Mark transaction for rollback
15:53:19,603 DEBUG [org.hibernate.engine.transaction.spi.AbstractTransactionImpl] - rolling back
15:53:19,678 DEBUG [org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction] - rolled JDBC Connection
15:53:19,679 DEBUG [org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction] - re-enabling autocommit

我如何才能坚持使用 JPAContainer 这两个实体？

Answer 1

This is Hibernate 101.

对于概念验证来说，这很容易。你最好的选择是使用 Spring transaction + hibernate + dao 模型