@TypeDefをHibernate Transactionで永続性なしで使用する方法

Question

私はBigDecimalの周りにラッパーを記述しています。私は永続化したい/データベースから/フェッチします。ここに私のエンティティ・クラスがどのように見えるかです： -

@Data 
@Entity 
@Table(name = "transaction_line_item_value") 
@Builder 
@AllArgsConstructor 
@NoArgsConstructor 
@TypeDefs({ 
    @TypeDef(name = "rupee-custom", defaultForType = Rupee.class, typeClass = RupeeType.class) 
}) 
public class TransactionLineItemValue { 

    @Id 
    @GeneratedValue(strategy = GenerationType.IDENTITY) 
    @PodamExclude 
    private int id; 

    //@Column(name = "amount", nullable = false) Works! But makes amount immutable. 
    @Column(name = "amount") 
    private Rupee amount; 

} 

ルピークラス、今のところ、BigDecimalのオーバーラップ以外の何ものでもありません。

RupeeTypeは、AbstractSingleColumnStandardBasicTypeを拡張します。そのように見える。

public class RupeeType extends AbstractSingleColumnStandardBasicType<BigDecimal> { 

    public RupeeType() { 
    super(new RupeeTypeDescriptor(), BigDecimalTypeDescriptor.INSTANCE); 
    } 

    @Override 
    public String getName() { 
    return "rupee-custom"; 
    } 

    public static class RupeeTypeDescriptor implements SqlTypeDescriptor { 


    @Override 
    public int getSqlType() { 
     return Types.DOUBLE; 
    } 

    @Override 
    public boolean canBeRemapped() { 
     return false; 
    } 

    @Override 
    public <X> ValueBinder<X> getBinder(JavaTypeDescriptor<X> javaTypeDescriptor) { 
     return new BasicBinder<X>(javaTypeDescriptor, (SqlTypeDescriptor) this) { 

      @Override 
      protected void doBind(PreparedStatement preparedStatement, X x, int i, WrapperOptions wrapperOptions) throws SQLException { 
       preparedStatement.setBigDecimal(i, ((Rupee) x).getAmount()); 
      } 

      @Override 
      protected void doBind(CallableStatement callableStatement, X x, String s, WrapperOptions wrapperOptions) throws SQLException { 
       callableStatement.setBigDecimal(s, ((Rupee) x).getAmount()); 
      } 
     }; 
    } 

    @Override 
    public <X> ValueExtractor<X> getExtractor(JavaTypeDescriptor<X> javaTypeDescriptor) { 
     return new BasicExtractor<X>(javaTypeDescriptor, (SqlTypeDescriptor) this) { 

      @Override 
      protected X doExtract(ResultSet resultSet, String s, WrapperOptions wrapperOptions) throws SQLException { 
       return (X) Rupee.builder().amount(resultSet.getBigDecimal(s)).build(); 
      } 

      @Override 
      protected X doExtract(CallableStatement callableStatement, int i, WrapperOptions wrapperOptions) throws SQLException { 
       return (X) Rupee.builder().amount(callableStatement.getBigDecimal(i)).build(); 
      } 

      @Override 
      protected X doExtract(CallableStatement callableStatement, String s, WrapperOptions wrapperOptions) throws SQLException { 
       return (X) Rupee.builder().amount(callableStatement.getBigDecimal(s)).build(); 
      } 
     }; 
    } 
} 

} 

これは、@UnitOfWorkに 'transactional = false'が設定されている場合に機能します。どうすれば 'transactional = true'で 'nullable = false'を使わなくても動作させることができます。

私はDropwizardでHibernateを使用しています。

私は取得していますエラーがある： - 私も自分のJavaTypeDescriptorを作成する代わりにBigDecimalTypeDescriptorを使用することによってこの問題を解決することとなっている

ERROR [2017-01-12 10:27:50,526] io.dropwizard.jersey.errors.LoggingExceptionMapper: Error handling a request: 3133bd19c739c6b5 
! java.lang.ClassCastException: in.cleartax.gst.entities.Rupee cannot be cast to java.math.BigDecimal 
! at org.hibernate.type.descriptor.java.BigDecimalTypeDescriptor.areEqual(BigDecimalTypeDescriptor.java:19) 
! at org.hibernate.type.AbstractStandardBasicType.isEqual(AbstractStandardBasicType.java:180) 
! at org.hibernate.type.AbstractStandardBasicType.isSame(AbstractStandardBasicType.java:170) 
! at org.hibernate.type.AbstractStandardBasicType.isDirty(AbstractStandardBasicType.java:206) 
! at org.hibernate.type.AbstractStandardBasicType.isDirty(AbstractStandardBasicType.java:202) 
! at org.hibernate.type.TypeHelper.findDirty(TypeHelper.java:296) 
! at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:4126) 
! at org.hibernate.event.internal.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:528) 
! at org.hibernate.event.internal.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:215) 
! at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:142) 
! at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:216) 
! at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:85) 
! at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:38) 
! at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1295) 
! at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:468) 
! at org.hibernate.internal.SessionImpl.flushBeforeTransactionCompletion(SessionImpl.java:3135) 
! at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:2352) 
! at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.beforeTransactionCompletion(JdbcCoordinatorImpl.java:485) 
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.beforeCompletionCallback(JdbcResourceLocalTransactionCoordinatorImpl.java:147) 
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl.access$100(JdbcResourceLocalTransactionCoordinatorImpl.java:38) 
! at org.hibernate.resource.transaction.backend.jdbc.internal.JdbcResourceLocalTransactionCoordinatorImpl$TransactionDriverControlImpl.commit(JdbcResourceLocalTransactionCoordinatorImpl.java:231) 
! at org.hibernate.engine.transaction.internal.TransactionImpl.commit(TransactionImpl.java:65) 
! at io.dropwizard.hibernate.UnitOfWorkAspect.commitTransaction(UnitOfWorkAspect.java:124) 
! at io.dropwizard.hibernate.UnitOfWorkAspect.afterEnd(UnitOfWorkAspect.java:63) 
! at io.dropwizard.hibernate.UnitOfWorkApplicationListener$UnitOfWorkEventListener.onEvent(UnitOfWorkApplicationListener.java:79) 
! at org.glassfish.jersey.server.internal.monitoring.CompositeRequestEventListener.onEvent(CompositeRequestEventListener.java:71) 
! at org.glassfish.jersey.server.internal.process.RequestProcessingContext.triggerEvent(RequestProcessingContext.java:226) 
! at org.glassfish.jersey.server.ContainerFilteringStage$ResponseFilterStage.apply(ContainerFilteringStage.java:188) 
! at org.glassfish.jersey.server.ContainerFilteringStage$ResponseFilterStage.apply(ContainerFilteringStage.java:163) 
! at org.glassfish.jersey.process.internal.Stages.process(Stages.java:171) 
! at org.glassfish.jersey.server.ServerRuntime$Responder.processResponse(ServerRuntime.java:442) 
! at org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:434) 
! at org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:329) 
! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:271) 
! at org.glassfish.jersey.internal.Errors$1.call(Errors.java:267) 
! at org.glassfish.jersey.internal.Errors.process(Errors.java:315) 
! at org.glassfish.jersey.internal.Errors.process(Errors.java:297) 
! at org.glassfish.jersey.internal.Errors.process(Errors.java:267) 
! at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317) 
! at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:305) 
! at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1154) 
! at org.glassfish.jersey.servlet.WebComponent.serviceImpl(WebComponent.java:473) 
! at org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:427) 
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:388) 
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:341) 
! at org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:228) 
! at io.dropwizard.jetty.NonblockingServletHolder.handle(NonblockingServletHolder.java:49) 
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1689) 
! at io.dropwizard.servlets.ThreadNameFilter.doFilter(ThreadNameFilter.java:34) 
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676) 
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.handle(AllowedMethodsFilter.java:50) 
! at io.dropwizard.jersey.filter.AllowedMethodsFilter.doFilter(AllowedMethodsFilter.java:44) 
! at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1676) 
! at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:581) 
! at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1174) 
! at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511) 
! at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1106) 
! at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) 
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) 
! at com.codahale.metrics.jetty9.InstrumentedHandler.handle(InstrumentedHandler.java:240) 
! at io.dropwizard.jetty.RoutingHandler.handle(RoutingHandler.java:51) 
! at org.eclipse.jetty.server.handler.gzip.GzipHandler.handle(GzipHandler.java:459) 
! at io.dropwizard.jetty.BiDiGzipHandler.handle(BiDiGzipHandler.java:68) 
! at org.eclipse.jetty.server.handler.RequestLogHandler.handle(RequestLogHandler.java:56) 
! at org.eclipse.jetty.server.handler.StatisticsHandler.handle(StatisticsHandler.java:169) 
! at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) 
! at org.eclipse.jetty.server.Server.handle(Server.java:524) 
! at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:319) 
! at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:253) 
! at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:273) 
! at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95) 
! at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:93) 
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.executeProduceConsume(ExecuteProduceConsume.java:303) 
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceConsume(ExecuteProduceConsume.java:148) 
! at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:136) 
! at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:671) 
! at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:589) 
! at java.lang.Thread.run(Thread.java:745) 

Answer 1

。それはこのように見えます。

public static class RupeeTypeJavaDescriptor extends AbstractTypeDescriptor<Rupee> { 


    public RupeeTypeJavaDescriptor() { 
     super(Rupee.class); 
    } 

    @Override 
    public String toString(Rupee rupee) { 
     return null; 
    } 

    @Override 
    public Rupee fromString(String s) { 
     return null; 
    } 

    @Override 
    public <X> X unwrap(Rupee rupee, Class<X> aClass, WrapperOptions wrapperOptions) { 
     return null; 
    } 

    @Override 
    public <X> Rupee wrap(X x, WrapperOptions wrapperOptions) { 
     return null; 
    } 
}