Discussoes de Programacao e Tecnologia

Hibernate. erro ao usar discriminator (herança)

1 resposta
R
ronaldorezende

Vejam meu arquivo de mapeamento:

<?xml version="1.0"?>
<!DOCTYPE hibernate-mapping
      SYSTEM "hibernate-mapping-3.0.dtd" >

<hibernate-mapping>

	<class name="src.model.DescricaoPE" table="DESCRICAO_PE">

		<id name="id" column="DESCRICAO_PE_ID">
			<generator class="sequence">
				<param name="sequence">DESCRICAO_PE_GEN</param>
			</generator>
		</id>

		<version name="versao" column="VERSAO" />
		
	    <discriminator column="TIPO" type="string" />

		<property name="descricao" unique="true" not-null="true" />
		
		<property name="areaSecao" column="AREA_SECAO" not-null="true" />
		
		<property name="vao" not-null="true" />

		<property name="qtdCharutos" column="QTD_CHARUTOS" not-null="true" />

		<subclass
			name="src.model.PEPortico"
			discriminator-value="Pórtico">

			<many-to-one name="porticoDuplo" column="PORTICO_DUPLO_ID"/>

			<many-to-one name="porticoSimples" column="PORTICO_SIMPLES_ID"/>
				
			<many-to-one name="porticoTriplo" column="PORTICO_TRIPLO_ID"/>

		</subclass>

		<subclass
			name="src.model.PETesoura"
			discriminator-value="Tesoura">

			<many-to-one name="tesoura" column="TESOURA_ID"/>			
			
		</subclass>		
		
	</class>

</hibernate-mapping>

Se eu tiro o discriminator, dá erro pois tem que ter discriminator. Se ele fica, o erro abaixo é mostrado:

17:37:05,058org.hibernate.MappingException: Error reading resource: src/model/hibernate/DescricaoPE.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:449)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1313)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1285)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1267)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1234)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1162)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1148)
at src.model.HibernateUtil.(HibernateUtil.java:16)
at src.model.GerenciadorPortico.getTodosPorticos(GerenciadorPortico.java:10)
at src.controller.ControladorTelaPesquisaPortico.CriarVisao(ControladorTelaPesquisaPortico.java:22)
at src.controller.ControladorTelaPesquisaModelo.(ControladorTelaPesquisaModelo.java:20)
at src.controller.ControladorTelaPesquisaPortico.(ControladorTelaPesquisaPortico.java:15)
at src.swing.MenuPrincipal.actionPerformed(MenuPrincipal.java:101)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: org.hibernate.MappingException: invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:396)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:446)
... 38 more
Caused by: org.xml.sax.SAXParseException: The content of element type "class" must match "(meta*,subselect?,cache?,synchronize*,(id|composite-id),discriminator?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array|query-list)*,((join*,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*)".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:395)
... 39 more
Exception in thread "AWT-EventQueue-0" java.lang.ExceptionInInitializerError
at src.model.HibernateUtil.(HibernateUtil.java:19)
at src.model.GerenciadorPortico.getTodosPorticos(GerenciadorPortico.java:10)
at src.controller.ControladorTelaPesquisaPortico.CriarVisao(ControladorTelaPesquisaPortico.java:22)
at src.controller.ControladorTelaPesquisaModelo.(ControladorTelaPesquisaModelo.java:20)
at src.controller.ControladorTelaPesquisaPortico.(ControladorTelaPesquisaPortico.java:15)
at src.swing.MenuPrincipal.actionPerformed(MenuPrincipal.java:101)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI.doClick(Unknown Source)
at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: org.hibernate.MappingException: Error reading resource: src/model/hibernate/DescricaoPE.hbm.xml
at org.hibernate.cfg.Configuration.addResource(Configuration.java:449)
at org.hibernate.cfg.Configuration.parseMappingElement(Configuration.java:1313)
at org.hibernate.cfg.Configuration.parseSessionFactory(Configuration.java:1285)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1267)
at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1234)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1162)
at org.hibernate.cfg.Configuration.configure(Configuration.java:1148)
at src.model.HibernateUtil.(HibernateUtil.java:16)
... 31 more
Caused by: org.hibernate.MappingException: invalid mapping
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:396)
at org.hibernate.cfg.Configuration.addResource(Configuration.java:446)
... 38 more
Caused by: org.xml.sax.SAXParseException: The content of element type "class" must match "(meta*,subselect?,cache?,synchronize*,(id|composite-id),discriminator?,(version|timestamp)?,(property|many-to-one|one-to-one|component|dynamic-component|properties|any|map|set|list|bag|idbag|array|primitive-array|query-list)*,((join*,subclass*)|joined-subclass*|union-subclass*),loader?,sql-insert?,sql-update?,sql-delete?,filter*)".
at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.handleEndElement(Unknown Source)
at org.apache.xerces.impl.dtd.XMLDTDValidator.endElement(Unknown Source)
at org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.dom4j.io.SAXReader.read(SAXReader.java:465)
at org.hibernate.cfg.Configuration.addInputStream(Configuration.java:395)
... 39 more

Alura Desenvolvimento Back-End Java Sua Carreira em desenvolvimento back-end Java: dos fundamentos à arquitetura de sistemas...

1 Resposta

R
ronaldorezende

Consegui resolver o problema. Coloquei o discriminator antes do version:

Troquei isto:

<version name="versao" column="VERSAO" /> <discriminator column="TIPO" type="string" />
Por isto:

<discriminator column="TIPO" type="string" /> <version name="versao" column="VERSAO" />

Criado 18 de maio de 2005
Ultima resposta 18 de mai. de 2005
Respostas 1
Participantes 1

Topicos relacionados

Como saber se um mes tem 4 ou 5 semanas?[RESOLVIDO] 31 respostas Como converter inteiro para string! 13 respostas Comando SELECT para selecionar intervalo de data SQL SERVER 12 respostas &, &&, |, ||. Qndo usar? 6 respostas O método split 12 respostas
Alura Sistemas operacionais: entenda seu conceito e suas funções Descubra o que são sistemas operacionais, suas funções e tipos. Aprenda tudo de forma clara e objetiva. Não perca tempo!
Casa do Codigo Orientacao a Objetos: Aprenda seus conceitos e suas... Por Thiago Leite e Carvalho — Casa do Codigo