我有两个实体，我正在使用JPAContainer，但我不知道如何使用它们与这两个实体建立关系。
这里是我的代码
@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);
}
/ **例外* /
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
我如何坚持JPAContainer这两个实体？
答案 0 :(得分：1)
对于概念验证，这很容易。你最好的选择是使用Spring transaction + hibernate + dao model