Hello!
I´m a Seam beginner developer.
I´m trying to add a new attribute in a Home (generated by seam-gen) to be used as an auxiliar (without persistence) field in my .xhtml.
I have 2 EJBs: Selecao and PalavraChave
This is part of my SelecaoHome.java:
@Name("selecaoHome")
public class SelecaoHome extends EntityHome<Selecao> {
private Palavrachave palavrachave;
public Palavrachave getPalavrachave() {
return this.palavrachave;
}
public void setPalavrachave(Palavrachave palavrachave) {
this.palavrachave = palavrachave;
}
And this is part of my SelecaoEdit.xmtl
<s:decorate id="pvField" template="layout/edit.xhtml">
<ui:define name="label">Palavras Chaves</ui:define>
<h:inputText id="texto" required="false"
value="#{selecaoHome.palavrachave.texto}">
<a:support event="onblur" reRender="pvField"
action="#{selecaoHome.addNewPalavrachave}" ajaxSingle="true"/>
</h:inputText>
<h:dataTable value="#{selecaoHome.palavrachaves}" var="_palavrachave" id="ds">
<h:column>
<h:outputText value="#{_palavrachave.texto}" />
</h:column>
<h:column>
<a:commandLink value="Delete" reRender="pvField" action="#{selecaoHome.delPalavrachave(_palavrachave)}" ajaxSingle="true"/>
</h:column>
</h:dataTable>
</s:decorate>
I´m filling the List palavraschaves (datatable) using object Palavrachave (inputText). And it´s working!
But when I click the Done (persist) button, I receive the following error message:
16:53:27,073 WARNING [lifecycle] /SelecaoEdit.xhtml @158,90 value="#{selecaoHome.palavrachave.texto}": Target Unreachable, 'palavrachave' returned null on 'br.gov.rfb.webprog1.session.SelecaoHome_$$_javassist_seam_6'
javax.el.PropertyNotFoundException: /SelecaoEdit.xhtml @158,90 value="#{selecaoHome.palavrachave.texto}": Target Unreachable, 'palavrachave' returned null on 'br.gov.rfb.webprog1.session.SelecaoHome_$$_javassist_seam_6'
at com.sun.facelets.el.TagValueExpression.getType(TagValueExpression.java:62)
at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getConvertedValue(HtmlBasicInputRenderer.java:92)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:942)
at javax.faces.component.UIInput.validate(UIInput.java:868)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1072)
at javax.faces.component.UIInput.processValidators(UIInput.java:672)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1058)
at javax.faces.component.UIForm.processValidators(UIForm.java:235)
at org.ajax4jsf.component.AjaxViewRoot$3.invokeContextCallback(AjaxViewRoot.java:439)
at org.ajax4jsf.component.AjaxViewRoot.processPhase(AjaxViewRoot.java:238)
at org.ajax4jsf.component.AjaxViewRoot.processValidators(AjaxViewRoot.java:455)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83)
at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:90)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:178)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:368)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:495)
at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:56)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:60)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.web.HotDeployFilter.doFilter(HotDeployFilter.java:53)
at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69)
at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)
at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Unknown Source)
16:53:27,073 SEVERE [lifecycle] JSF1054: (Phase ID: PROCESS_VALIDATIONS 3, View ID: /SelecaoEdit.xhtml) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@1081d04]
I don´t know what´s happening!
I suppose it´s trying to persist the palavrachave auxiliar attribute.
How can I avoid it?
Tks and regards! Leo.