次の問題があります。
3つのタブを持つTabViewがあります。各タブには2つのDataTableがあります。最初のテーブルで行を選択すると、関連するデータが2番目のテーブルに読み込まれます。例（擬似コード）：
<form>
<tabview>
<tab>
<datatable>
(data in table A)
<datatable/>
<datatable>
(data that is dynamically loaded if one row in table A is selected)
<datatable/>
<tab/>
<datatable>
........
<datatable/>
<datatable>
........
<datatable/>
<tab/>
<tab>
<datatable>
........
<datatable/>
<datatable>
........
<datatable/>
<tab/>
<tabview/>
<form/>
最初のテーブル（テーブルA）でアイテムを選択すると、関連するデータが2番目のテーブルにロードされます（上記の例のように）。ただし、別のテーブルに切り替える前に、最初のテーブルで選択した行を明示的に選択解除する必要があります。これにより、activeIndexが更新され、バッキングBeanの選択解除イベントが発生して、2番目のテーブルの関連データがクリアされます。この選択解除を行わないと、タブビューのactiveIndexが更新されず、このエラーメッセージが表示されます。
**
INFO: javax.el.PropertyNotFoundException: /auslegerStativEdit.xhtml @160,66 value="#{dataRowDuesKombi.auslegertyp}": Target Unreachable, identifier 'dataRowDuesKombi' resolved to null
javax.el.PropertyNotFoundException: /auslegerStativEdit.xhtml @160,66 value="#{dataRowDuesKombi.auslegertyp}": Target Unreachable, identifier 'dataRowDuesKombi' resolved to null
at com.sun.faces.facelets.el.TagValueExpression.getType(TagValueExpression.java:100)
at org.primefaces.renderkit.InputRenderer.getConverter(InputRenderer.java:162)
at org.primefaces.renderkit.InputRenderer.getConvertedValue(InputRenderer.java:175)
at javax.faces.component.UIInput.getConvertedValue(UIInput.java:1030)
at javax.faces.component.UIInput.validate(UIInput.java:960)
at javax.faces.component.UIInput.executeValidate(UIInput.java:1233)
at javax.faces.component.UIInput.processValidators(UIInput.java:698)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIData.iterate(UIData.java:1999)
at javax.faces.component.UIData.processValidators(UIData.java:1204)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at javax.faces.component.UIComponentBase.processValidators(UIComponentBase.java:1214)
at org.primefaces.component.tabview.TabView.processValidators(TabView.java:322)
at com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback.visit(PartialViewContextImpl.java:508)
at com.sun.faces.component.visit.PartialVisitContext.invokeVisitCallback(PartialVisitContext.java:183)
at org.primefaces.component.tabview.TabView.visitTree(TabView.java:391)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIForm.visitTree(UIForm.java:362)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at javax.faces.component.UIComponent.visitTree(UIComponent.java:1623)
at com.sun.faces.context.PartialViewContextImpl.processComponents(PartialViewContextImpl.java:376)
at com.sun.faces.context.PartialViewContextImpl.processPartial(PartialViewContextImpl.java:252)
at javax.faces.context.PartialViewContextWrapper.processPartial(PartialViewContextWrapper.java:183)
at javax.faces.component.UIViewRoot.processValidators(UIViewRoot.java:1170)
at com.sun.faces.lifecycle.ProcessValidationsPhase.execute(ProcessValidationsPhase.java:76)
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101)
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:79)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at at.beko.rainstar2.ui.filter.CustomCharacterEncodingFilter.doFilter(CustomCharacterEncodingFilter.java:25)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:311)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:116)
at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.authentication.preauth.AbstractPreAuthenticatedProcessingFilter.doFilter(AbstractPreAuthenticatedProcessingFilter.java:88)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87)
at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:323)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:173)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:928)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:539)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:298)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:619)
11.05.2012 08:29:38 com.sun.faces.context.flash.ELFlash setCookie
WARNUNG: JSF1095: The response was already committed by the time we tried to set the outgoing cookie for the flash. Any values stored to the flash will not be available on the next request.
**
これがサンプルコードです
xhtml
<h:form id="form" prependId="false">
<p:tabView id="tabView"
activeIndex="#{auslegerStativEditBean.activeTabIndex}">
<p:ajax event="tabChange"
listener="#{auslegerStativEditBean.onTabChange}" immediate="true" />
<p:tab title="#{msg.menu_auslegerstativ_duesen}" id="one">
<p:outputPanel>
<p:dataTable var="dataRowDues"
selection="#{auslegerStativEditBean.auslduesSelection}"
first="#{auslegerStativEditBean.firstRowIndexDues}"
value="#{auslegerStativEditBean.auslduesList}" editable="true"
id="dues" paginator="true"
rows="#{auslegerStativEditBean.rowsPerPageDues}"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="15,25,35"
rowKey="#{dataRowDues.auslegertyp}" selectionMode="single"
widgetVar="dues">
<p:column
headerText="#{msg.table_auslegerstativ_dues_auslegertyp}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.auslegertyp}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDues.auslegertyp}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_auslegerbreite}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.auslegerbreite}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDues.auslegerbreite}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_streifenbreite}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.streifenbreite}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDues.streifenbreite}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_auslegergewicht}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.auslegergewicht}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDues.auslegergewicht}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.table_auslegerstativ_dues_mindruck}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.mindruck}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true" value="#{dataRowDues.mindruck}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_niederschlagsindex}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.niederschlagsindex}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDues.niederschlagsindex}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.table_auslegerstativ_dues_druck1}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.druck1}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true" value="#{dataRowDues.druck1}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.table_auslegerstativ_dues_druck2}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.druck2}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true" value="#{dataRowDues.druck2}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.table_auslegerstativ_dues_druck3}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDues.druck3}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true" value="#{dataRowDues.druck3}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.column_head_edit}">
<p:rowEditor />
<p:commandButton icon="ui-icon-close"
styleClass="rainstar-button-small-edit"
action="#{auslegerStativEditBean.btn_deleteEntryClick0()}"
update=":form">
<f:setPropertyActionListener
target="#{auslegerStativEditBean.selectedAusldues}"
value="#{dataRowDues}" />
</p:commandButton>
</p:column>
<p:ajax event="rowEdit"
listener="#{auslegerStativEditBean.btn_editEntryClick0}"
update=":form" />
<p:ajax event="rowSelect"
listener="#{auslegerStativEditBean.selectionChangeAusldues}"
update=":form" />
<p:ajax event="rowUnselect"
listener="#{auslegerStativEditBean.deselectionChangeAusldues()}"
update=":form" />
</p:dataTable>
<p:dataTable var="dataRowDuesKombi"
binding="#{auslegerStativEditBean.auslduesKombiTable}"
value="#{auslegerStativEditBean.auslduesKombiList}"
editable="true" id="duesK" paginator="true" rows="15"
paginatorTemplate="{CurrentPageReport} {FirstPageLink} {PreviousPageLink} {PageLinks} {NextPageLink} {LastPageLink} {RowsPerPageDropdown}"
rowsPerPageTemplate="15,25,35">
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_auslegertyp}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.auslegertyp}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.auslegertyp}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_duesenkomb}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.duesenkomb}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.duesenkomb}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_vollkreis_Anz}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.vollkreis_Anz}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.vollkreis_Anz}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_vollkreis_Groesse}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.vollkreis_Groesse}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.vollkreis_Groesse}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_halbkreis_Anz}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.halbkreis_Anz}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.halbkreis_Anz}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_halbkreis_Groesse}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.halbkreis_Groesse}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.halbkreis_Groesse}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_ges_Alpha}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.ges_Alpha}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.ges_Alpha}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_equival_dm}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.equival_dm}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.equival_dm}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column
headerText="#{msg.table_auslegerstativ_dues_kombi_intensitaets_Index}">
<p:cellEditor>
<f:facet name="output">
<h:outputText value="#{dataRowDuesKombi.intensitaets_Index}" />
</f:facet>
<f:facet name="input">
<p:inputText required="true"
value="#{dataRowDuesKombi.intensitaets_Index}" />
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="#{msg.column_head_edit}">
<p:rowEditor />
<p:commandButton icon="ui-icon-close"
styleClass="rainstar-button-small-edit"
action="#{auslegerStativEditBean.btn_deleteEntryClick1()}"
update=":form">
<f:setPropertyActionListener
target="#{auslegerStativEditBean.selectedAuslduesKombi}"
value="#{dataRowDuesKombi}" />
</p:commandButton>
</p:column>
<p:ajax event="rowEdit"
listener="#{auslegerStativEditBean.btn_editEntryClick1}"
update=":form" />
</p:dataTable>
</p:outputPanel>
</p:tab>
.
// THE SAME FOR THE NEXT TWO TABS
.
.
.
</p:tabView>
<div class="button-footer">
<p:commandButton value="#{msg.button_new_entry}" icon="ui-icon-plus"
styleClass="button-header"
action="#{auslegerStativEditBean.btn_addNewEntryClick()}"
update=":form" />
</div>
</h:form>
豆
@Named("auslegerStativEditBean")
@SessionScoped public class AuslegerStativEditController {
@Inject
private AuslduesService auslduesService;
@Getter
@Setter
private List<Ausldues> auslduesList;
@Getter
@Setter
private List<AuslduesKombi> auslduesKombiList;
@Getter
@Setter
private Ausldues selectedAusldues;
@Getter
@Setter
private AuslduesKombi selectedAuslduesKombi;
public AuslegerStativEditController() {
selectedAusldues = new Ausldues();
selectedAuslduesKombi = new AuslduesKombi();
}
public final void onTabChange(final TabChangeEvent event) {
TabView tv = (TabView) event.getComponent();
activeTabIndex = tv.getActiveIndex();
}
@PostConstruct
public void init() {
auslduesList = auslduesService.findAll();
ausleg2List = ausleg2Service.findAll();
auslregnList = auslregnService.findAll();
duesend2List = duesend2Service.findAll();
}
public void selectionChange(SelectEvent event) {
switch (activeTabIndex) {
case 0: {
Ausldues a = (Ausldues) event.getObject();
auslduesKombiList = auslduesKombiService.findByAusldues(a);
break;
}
case 1: {
Ausleg2 a = (Ausleg2) event.getObject();
ausleg2KombiList = ausleg2KombiService.findByAusleg2(a);
break;
}
case 2: {
Auslregn a = (Auslregn) event.getObject();
auslregnKombiList = auslregnKombiService.findByAuslregn(a);
break;
}
}
}
public void deselectionChange(UnselectEvent event) {
switch (activeTabIndex) {
case 0: {
auslduesKombiList = null;
break;
}
case 1: {
ausleg2KombiList = null;
break;
}
case 2: {
auslregnKombiList = null;
break;
}
}
}
}
もちろん、関係のないコード部分は省略しました。