Tomahawk dataTable & NPE Problem
I use this:
<t:dataTable id="operationsTable"
rendered="#{ operations.rowCount > 0 }"
value="#{ operations }"
var="operation"
rowIndexVar="i"
sortColumn="#{ operationView.column }"
sortAscending="#{ operationView.ascending }"
headerClass="dataHeader"
rowClasses="dataLine1, dataLine2"
styleClass="dataTable">
<h:column>
<f:facet name="header">
<h:commandLink action="#{ operationFiling.create }">
<h:graphicImage url="/img/new.png"style="margin-left: 2px; margin-right: 10px;"/>
</h:commandLink>
</f:facet>
<h:outputText value="#{ i+1 }"/>
</h:column>
<h:column>
<f:facet name="header">
<t:commandSortHeader columnName="name" arrow="true">
<h:outputText value="Nome"/>
</t:commandSortHeader>
</f:facet>
<s:link value="#{ operation[1] }" action="#{ operationFiling.open(operation[0]) }" styleClass="blue"/>
</h:column>
</t:dataTable>
Action:
@Stateful
@Name("operationView")
@Scope(ScopeType.SESSION)
public class OperationViewAction implements OperationView
{
@In(create = true)
private QueryService queryService;
@DataModel
private List<Object[]> operations;
private String column;
private boolean ascending;
public String getColumn()
{
return column;
}
public void setColumn(String column)
{
if (!column.equals(this.column)) sortOperations();
this.column = column;
}
public boolean isAscending()
{
return ascending;
}
public void setAscending(boolean ascending)
{
if (ascending != this.ascending) sortOperations();
this.ascending = ascending;
}
public String clean()
{
operations = null;
column = "name";
ascending = false;
return "operation";
}
@Observer("updateOperationList")
public void loadOperations()
{
// fill operations list
// ...
sortFidcOperations();
}
private void sortOperations()
{
if (operations == null)
return;
Comparator<Object[]> comp = new Comparator<Object[]>()
{
private RuleBasedCollator collator = (RuleBasedCollator) Collator.getInstance(new Locale("pt_BR"));
public int compare(Object[] x, Object[] y)
{
if (ascending)
{
Object[] t = y;
y = x;
x = t;
}
if (column.equals("name"))
{
String x1 = (String) x[1];
String y1 = (String) y[1];
if (x1 == null && y1 == null) return 0;
if (x1 == null) return 1;
if (y1 == null) return -1;
return collator.compare(x1, y1);
}
}
};
Collections.sort(operations, comp);
}
@Destroy @Remove
public void destroy()
{
clean();
}
}
And I had this exception:
16:12:59,165 ERROR [STDERR] 01/11/2006 16:12:59 com.sun.facelets.FaceletViewHandler handleRenderException SEVERE: Error Rendering View[/Data/Operation.xhtml] java.lang.NullPointerException at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27) at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:250) at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:178) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:433) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:313) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.renderColumnBody(HtmlTableRenderer.java:593) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:282) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeColumnChild(HtmlTableRenderer.java:496) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:258) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:171) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:436) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419) at org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:75) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) 16:12:59,189 ERROR [SeamExceptionFilter] could not destroy contexts java.lang.IllegalStateException: No session context active at org.jboss.seam.core.ConversationEntries.instance(ConversationEntries.java:85) at org.jboss.seam.core.Manager.getCurrentConversationEntry(Manager.java:681) at org.jboss.seam.core.Manager.unlockConversation(Manager.java:329) at org.jboss.seam.contexts.Lifecycle.flushAndDestroyContexts(Lifecycle.java:367) at org.jboss.seam.contexts.Lifecycle.endRequest(Lifecycle.java:281) at org.jboss.seam.servlet.SeamExceptionFilter.endWebRequestAfterException(SeamExceptionFilter.java:81) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:56) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) 16:12:59,190 ERROR [SeamExceptionFilter] uncaught exception handled by Seam javax.servlet.ServletException at javax.faces.webapp.FacesServlet.service(FacesServlet.java:156) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595) 16:12:59,220 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception java.lang.NullPointerException at org.jboss.seam.ui.UISelection.getValue(UISelection.java:27) at org.jboss.seam.ui.HtmlLink.getParameterString(HtmlLink.java:250) at org.jboss.seam.ui.HtmlLink.encodeBegin(HtmlLink.java:178) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:433) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChildren(RendererUtils.java:419) at org.apache.myfaces.shared_tomahawk.renderkit.RendererUtils.renderChild(RendererUtils.java:440) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.renderColumnBody(HtmlTableRendererBase.java:313) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.renderColumnBody(HtmlTableRenderer.java:593) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeColumnChild(HtmlTableRendererBase.java:282) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeColumnChild(HtmlTableRenderer.java:496) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeInnerHtml(HtmlTableRendererBase.java:258) at org.apache.myfaces.shared_tomahawk.renderkit.html.HtmlTableRendererBase.encodeChildren(HtmlTableRendererBase.java:123) at org.apache.myfaces.renderkit.html.ext.HtmlTableRenderer.encodeChildren(HtmlTableRenderer.java:171) at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:524) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChild(RendererUtils.java:436) at org.apache.myfaces.shared_impl.renderkit.RendererUtils.renderChildren(RendererUtils.java:419) at org.apache.myfaces.shared_impl.renderkit.html.HtmlGroupRendererBase.encodeEnd(HtmlGroupRendererBase.java:75) at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:536) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:242) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239) at com.sun.facelets.tag.jsf.ComponentSupport.encodeRecursive(ComponentSupport.java:239) at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:580) at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:384) at javax.faces.webapp.FacesServlet.service(FacesServlet.java:138) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.myfaces.webapp.filter.ExtensionsFilter.doFilter(ExtensionsFilter.java:144) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamExceptionFilter.doFilter(SeamExceptionFilter.java:45) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.seam.servlet.SeamRedirectFilter.doFilter(SeamRedirectFilter.java:32) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869) at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112) at java.lang.Thread.run(Thread.java:595)
The exception occurs in UISelection:
public Object getValue()
{
Object value = Contexts.lookupInStatefulContexts(dataModel);
int rowIndex = ( (DataModel) value ).getRowIndex();
return value==null || rowIndex<0 ?
null : var + ':' + dataModel + '[' + rowIndex + ']';
}
I think this should be:
public Object getValue()
{
Object value = Contexts.lookupInStatefulContexts(dataModel);
int rowIndex = value==null ? -1 : ( (DataModel) value ).getRowIndex();
return rowIndex<0 ?
null : var + ':' + dataModel + '[' + rowIndex + ']';
}
Someone could give me a clue why this is not working? I should give up from Tomahawk?