[RESOLVIDO] Hackeando JPATransactionInterceptor com V|Raptor 3.2.0

11 de dezembro de 2010 6 respostas

softwork 11 de dezembro de 2010

Estou seguindo a dica do Lucas, onde:

Criei a anotação @NoTransaction:

public @interface NoTransaction {}

Criei o componente ModifiedJPATransaction herdando de JPATransactionInterceptor:

@Component
public class ModifiedJPATransaction extends JPATransactionInterceptor {
    
    public ModifiedJPATransaction(EntityManager manager) {
        super(manager);
    }

    @Override
    public boolean accepts(ResourceMethod method) {
        return method.containsAnnotation(NoTransaction.class);
    }
}

Coloquei as definições do componente JPA no web.xml:

...
...
    &lt;context-param&gt;
        &lt;param-name&gt;br.com.caelum.vraptor.packages&lt;/param-name&gt;
        &lt;param-value&gt;br.com.caelum.vraptor.util.jpa&lt;/param-value&gt;
    &lt;/context-param&gt;
...
...

Editei o meu DAOFactory e implementei o atributo EntityManager, um construtor e também o utilizei no método getUsuarioDAO:

@Component
public class DAOFactory {
    
    private EntityManager manager;
    
    public DAOFactory(EntityManager manager) {
        super();
        this.manager = manager;
    }
...
...
    public UsuarioDAO getUsuarioDAO() {
        return new UsuarioDAO(this.manager);
    }
...
...

NOTA: O PicoContainer esta injetando corretamente no construtor o EntityManager.

Meu Dao genérico ficou assim:

@Component
public class GenericDAO&lt;T&gt; {
    
    private EntityManager      manager;
    private Class&lt;? extends T&gt; classe;

    public GenericDAO(EntityManager manager, Class&lt;? extends T&gt; classe) {
        this.manager = manager;
        this.classe = classe;
    }
...
...
    public final EntityManager getEntityManager() {
        return this.manager;
    }

    public final Session getSession() {
        return ((Session) this.getEntityManager().getDelegate());
    }

    public final Criteria getCriteria() {
        return this.getSession().createCriteria(this.classe);
    }
...
...
    public final Collection&lt;T&gt; listAll(int pageNumber, int pageSize, Order... orderByFields) {
        Criteria criteria = this.getCriteria();
        for (int i = 0; i &lt; orderByFields.length; i++)
            criteria.addOrder(orderByFields[i]);
        if (pageNumber &gt;= 0 && pageSize &gt; 0)
            criteria.setFirstResult(pageNumber * pageSize).setMaxResults(pageSize);
        return criteria.list();
    }
...
...
    public final T selectByID(Long entityID) {
        return (T) this.getEntityManager().getReference(this.classe, entityID);
    }
...
...

Em meu controller só implementei a anotação @NoTransaction em todos os métodos que julgo não ser necessário abrir e fechar transações com o Banco de dados:

@Resource
public class UsuarioController {
    
    private final DAOFactory          dao;
    private final Result              result;
    private final HttpServletRequest  request;
    private final DisplayTagPaginator pagina;
    
    public UsuarioController(DAOFactory daoFactory, Result result, HttpServletRequest request, DisplayTagPaginator pagina) {
        this.dao = daoFactory;
        this.result = result;
        this.request = request;
        
        this.pagina = pagina;
        this.result.include("paginator", this.pagina);
    }
...
...
    @NoTransaction
    @Path("/usuario/lista")
    public void lista() {
        int pageNumber = Util.getPageDisplayTag(this.request);
        if (this.pagina.getResultSize() &lt;= 0)
            this.pagina.setResultSize(this.dao.getUsuarioDAO().recordCount());

        Collection&lt;Usuario&gt; usuarios = this.dao.getUsuarioDAO().listAll(pageNumber, this.pagina.getPageSize());
        this.result.include("paginator", this.pagina);
        this.result.include("usuarios", usuarios);
    }

    @NoTransaction
    @Path("/usuario/formulario")
    public void formulario() {}
...
...
    @NoTransaction
    @Path("/usuario/editar/{usuario.id}")
    public void editar(Usuario usuario) {
        usuario = (Usuario) this.dao.getUsuarioDAO().selectByID(usuario.getId());
        if (usuario != null)
            this.result.include("usuario", usuario);
        this.result.redirectTo(this.getClass()).formulario();
    }
...
...

Listagem retornando todos os registro corretamente:

Como pode ser visto acima, a listagem funciona perfeitamente bem e trás todos os registro na tela, porém ao executar um editar sobre um determinado registro, no exato momento que é chamado this.dao.getUsuarioDAO().selectByID(usuario.getId()) eu recebo a seguinte mensagem de erro:

11/12/2010 22:42:07 org.apache.catalina.core.ApplicationDispatcher invoke
GRAVE: Servlet.service() for servlet jsp threw exception
org.hibernate.LazyInitializationException: could not initialize proxy - no Session
    at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167)
    at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215)
    at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:191)
    at br.com.faespsenar.csr.entity.Usuario_$$_javassist_1.getId(Usuario_$$_javassist_1.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
    at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
    at org.apache.el.parser.AstValue.getValue(AstValue.java:123)
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
    at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
    at org.apache.jsp.WEB_002dINF.jsp.usuario.formulario_jsp._jspService(formulario_jsp.java:122)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at br.com.caelum.vraptor.core.DefaultStaticContentHandler.deferProcessingToContainer(DefaultStaticContentHandler.java:64)
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:80)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at br.com.caelum.vraptor.view.DefaultPageResult.forward(DefaultPageResult.java:67)
    at br.com.caelum.vraptor.extra.ForwardToDefaultViewInterceptor.intercept(ForwardToDefaultViewInterceptor.java:59)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:75)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:69)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:42)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:48)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.InterceptorListPriorToExecutionExtractor.intercept(InterceptorListPriorToExecutionExtractor.java:44)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:81)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:67)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
    at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
    at br.com.caelum.vraptor.ioc.pico.PicoProvider.provideForRequest(PicoProvider.java:181)
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Unknown Source)
11/12/2010 22:42:07 org.apache.catalina.core.StandardWrapperValve invoke
GRAVE: Servlet.service() for servlet default threw exception
br.com.caelum.vraptor.view.ResultException: org.apache.jasper.JasperException: javax.el.ELException: Error reading 'id' on type br.com.faespsenar.csr.entity.Usuario_$$_javassist_1
    at br.com.caelum.vraptor.view.DefaultPageResult.forward(DefaultPageResult.java:69)
    at br.com.caelum.vraptor.extra.ForwardToDefaultViewInterceptor.intercept(ForwardToDefaultViewInterceptor.java:59)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:75)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:69)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:42)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:48)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.InterceptorListPriorToExecutionExtractor.intercept(InterceptorListPriorToExecutionExtractor.java:44)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:81)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:67)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
    at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
    at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
    at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
    at br.com.caelum.vraptor.ioc.pico.PicoProvider.provideForRequest(PicoProvider.java:181)
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
    at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
    at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
    at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
    at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.jasper.JasperException: javax.el.ELException: Error reading 'id' on type br.com.faespsenar.csr.entity.Usuario_$$_javassist_1
    at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:491)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:419)
    at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
    at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at br.com.caelum.vraptor.core.DefaultStaticContentHandler.deferProcessingToContainer(DefaultStaticContentHandler.java:64)
    at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:80)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)
    at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)
    at br.com.caelum.vraptor.view.DefaultPageResult.forward(DefaultPageResult.java:67)
    ... 52 more
Caused by: javax.el.ELException: Error reading 'id' on type br.com.faespsenar.csr.entity.Usuario_$$_javassist_1
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:66)
    at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54)
    at org.apache.el.parser.AstValue.getValue(AstValue.java:123)
    at org.apache.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
    at org.apache.jasper.runtime.PageContextImpl.proprietaryEvaluate(PageContextImpl.java:935)
    at org.apache.jsp.WEB_002dINF.jsp.usuario.formulario_jsp._jspService(formulario_jsp.java:122)
    at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
    at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:377)
    ... 66 more
Caused by: org.hibernate.LazyInitializationException: could not initialize proxy - no Session
    at org.hibernate.proxy.AbstractLazyInitializer.initialize(AbstractLazyInitializer.java:167)
    at org.hibernate.proxy.AbstractLazyInitializer.getImplementation(AbstractLazyInitializer.java:215)
    at org.hibernate.proxy.pojo.javassist.JavassistLazyInitializer.invoke(JavassistLazyInitializer.java:191)
    at br.com.faespsenar.csr.entity.Usuario_$$_javassist_1.getId(Usuario_$$_javassist_1.java)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at javax.el.BeanELResolver.getValue(BeanELResolver.java:62)
    ... 74 more

O que estou fazendo de errado?

6 Respostas

Lucas_Cavalcanti 13 de dez. de 2010

faltou um ! no accepts do interceptor:

@Override  
    public boolean accepts(ResourceMethod method) {  
        return !method.containsAnnotation(NoTransaction.class);  
    }

[]'s

softwork 13 de dez. de 2010

Lucas Cavalcanti:

faltou um ! no accepts do interceptor:

@Override  
    public boolean accepts(ResourceMethod method) {  
        return !method.containsAnnotation(NoTransaction.class);  
    }

[]'s

Oi Lucas, obrigado por responder, mas eu fui depurar o código e percebi que não esta entrando no componente ModifiedJPATransaction.
Devo registrá-lo em algum local ?

Lucas_Cavalcanti 13 de dez. de 2010

hum… tenta fazer o seguinte então:

tire a configuração de packages da jpa
troque a anotação do interceptor de @Component para @Intercepts
-crie as classes:

@Component
@ApplicationScoped
public class MyEntityManagerFactoryCreator extends EntityManagerFactoryCreator {
   //construtor
}
@Component
public class MyEntityManagerCreator extends EntityManagerCreator {
   //construtor
}

assim deve funcionar

[]'s

softwork 13 de dez. de 2010

Lucas Cavalcanti:
hum… tenta fazer o seguinte então:

tire a configuração de packages da jpa

troque a anotação do interceptor de @Component para @Intercepts
-crie as classes:
@Component
@ApplicationScoped
public class MyEntityManagerFactoryCreator extends EntityManagerFactoryCreator {
   //construtor
}
@Component
public class MyEntityManagerCreator extends EntityManagerCreator {
   //construtor
}
assim deve funcionar

[]'s

Oi Lucas, segui as dicas e agora tenho outros erros, onde:

1º) Removendo a declaração br.com.caelum.vraptor.packages do web.xml:

GRAVE: End event threw exception
java.lang.IllegalArgumentException: Can't convert argument: null
	at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:1005)
	at org.apache.tomcat.util.digester.CallMethodRule.end(CallMethodRule.java:523)
	at org.apache.tomcat.util.digester.Rule.end(Rule.java:229)
	at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1138)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
	at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1642)
	at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)
	at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1076)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4540)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:637)
	at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:563)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
	at org.apache.catalina.core.StandardService.start(StandardService.java:519)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
13/12/2010 14:54:50 org.apache.catalina.startup.ContextConfig applicationWebConfig
GRAVE: Parse error in application web.xml file at jndi:/localhost/csr/WEB-INF/web.xml
java.lang.IllegalArgumentException: Can't convert argument: null
	at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2806)
	at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:2832)
	at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
	at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1642)
	at org.apache.catalina.startup.ContextConfig.applicationWebConfig(ContextConfig.java:365)
	at org.apache.catalina.startup.ContextConfig.start(ContextConfig.java:1076)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:261)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.StandardContext.start(StandardContext.java:4540)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:791)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:771)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:546)
	at org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:637)
	at org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:563)
	at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:498)
	at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1277)
	at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:321)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1053)
	at org.apache.catalina.core.StandardHost.start(StandardHost.java:785)
	at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1045)
	at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:445)
	at org.apache.catalina.core.StandardService.start(StandardService.java:519)
	at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)
	at org.apache.catalina.startup.Catalina.start(Catalina.java:581)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Caused by: java.lang.IllegalArgumentException: Can't convert argument: null
	at org.apache.tomcat.util.IntrospectionUtils.convert(IntrospectionUtils.java:1005)
	at org.apache.tomcat.util.digester.CallMethodRule.end(CallMethodRule.java:523)
	at org.apache.tomcat.util.digester.Rule.end(Rule.java:229)
	at org.apache.tomcat.util.digester.Digester.endElement(Digester.java:1138)
	... 38 more
13/12/2010 14:54:50 org.apache.catalina.startup.ContextConfig applicationWebConfig
GRAVE: Occurred at line 27 column 21
13/12/2010 14:54:50 org.apache.catalina.startup.ContextConfig start
GRAVE: Marking this application unavailable due to previous error(s)
13/12/2010 14:54:50 org.apache.catalina.core.StandardContext start
GRAVE: Error getConfigured
13/12/2010 14:54:50 org.apache.catalina.core.StandardContext start
GRAVE: Context [/csr] startup failed due to previous errors
13/12/2010 14:54:50 org.apache.catalina.loader.WebappClassLoader clearReferencesJdbc
GRAVE: The web application [/csr] registered the JBDC driver [org.postgresql.Driver] but failed to unregister it when the web application was stopped. To prevent a memory leak, the JDBC Driver has been forcibly unregistered.

2º) Se eu manter a declaração br.com.caelum.vraptor.packages no web.xml a aplicação compila, porém não executa:

GRAVE: Servlet.service() for servlet default threw exception
java.lang.NullPointerException
	at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:46)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.InterceptorListPriorToExecutionExtractor.intercept(InterceptorListPriorToExecutionExtractor.java:44)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:81)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:67)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.pico.PicoProvider.provideForRequest(PicoProvider.java:181)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Unknown Source)

Com a mudança de @Componente para @Intercepts na classe ModifiedJPATransaction, o método accepts(ResourceMethod method) é chamado, porém com a mensagem de erro acima.

3º) Se eu não implementar as duas classes (MyEntityManagerFactoryCreator e MyEntityManagerCreator) e manter a declaração no web.xml e também trocar de @Component para @Intercepts na classe ModifiedJPATransaction, tenho:

GRAVE: Servlet.service() for servlet default threw exception
java.lang.IllegalStateException: Transaction already active
	at org.hibernate.ejb.TransactionImpl.begin(TransactionImpl.java:57)
	at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:47)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.util.jpa.JPATransactionInterceptor.intercept(JPATransactionInterceptor.java:48)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.InterceptorListPriorToExecutionExtractor.intercept(InterceptorListPriorToExecutionExtractor.java:44)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:81)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:67)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:53)
	at br.com.caelum.vraptor.core.DefaultRequestExecution.execute(DefaultRequestExecution.java:70)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.pico.PicoProvider.provideForRequest(PicoProvider.java:181)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
	at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
	at java.lang.Thread.run(Unknown Source)

Lucas_Cavalcanti 13 de dez. de 2010

acabei de testar aqui assim:

declaração do packages no web.xml
interceptor extendendo:

@Component
public class Teste extends JPATransactionInterceptor {

	public Teste(EntityManager manager) {
		super(manager);
	}

	@Override
	public boolean accepts(ResourceMethod method) {
		return super.accepts(method);
	}
}

sem as outras classes…

no meu teste aqui ele passou pelo método accepts. O erro aí deve ser outro…

voltando ao seu código:

usuario = (Usuario) this.dao.getUsuarioDAO().selectByID(usuario.getId());  
        if (usuario != null)  
            this.result.include("usuario", usuario);  
        this.result.redirectTo(this.getClass()).formulario();

vc carrega o usuário, adiciona ele no result e faz o redirect… ou seja: é outra requisição e outra session, por isso o lazy init…

tenta trocar no dao.selectByID o manager.getReference por manager.find, isso deve funcionar

desculpe a confusão =S

softwork 13 de dez. de 2010

Lucas Cavalcanti:
acabei de testar aqui assim:

declaração do packages no web.xml

interceptor extendendo:
@Component
public class Teste extends JPATransactionInterceptor {

	public Teste(EntityManager manager) {
		super(manager);
	}

	@Override
	public boolean accepts(ResourceMethod method) {
		return super.accepts(method);
	}
}
sem as outras classes…

no meu teste aqui ele passou pelo método accepts. O erro aí deve ser outro…

voltando ao seu código:
usuario = (Usuario) this.dao.getUsuarioDAO().selectByID(usuario.getId());  
        if (usuario != null)  
            this.result.include("usuario", usuario);  
        this.result.redirectTo(this.getClass()).formulario();
vc carrega o usuário, adiciona ele no result e faz o redirect… ou seja: é outra requisição e outra session, por isso o lazy init…

tenta trocar no dao.selectByID o manager.getReference por manager.find, isso deve funcionar

desculpe a confusão =S

Então Lucas.

Como não tive muito sucesso com a anotação @Component sobre a classe ModifiedJPATransaction, eu resolvi seguir o exemplo Interceptando recursos anotados, escrito pelo amigo Tomaz.

Muito obrigado por todas as dicas e paciência.

Valeu mesmo meu irmãozinho…

Criado 11 de dezembro de 2010

Ultima resposta 13 de dez. de 2010

Respostas 6

Participantes 2

6 Respostas

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