Restore state problem with AtConverter Annotation
Hi
When converting some converters from plain old JSF (faces-config) to Seam annotated ones I've run into a problem with what seems to be restoring state.
Tried the proposed solution of using PAGE scope for the converter found here old forum post but that didn't work.
I have the converter setup as a Facelets converter in order to support the unit
attribute.
I'm curious about what is different when configuring the converter via Seam? Thinking it might be a bug in my code....
My converter code:
@Name("unitDoubleConverter")
@Scope(ScopeType.PAGE)
@Converter
public class UnitDoubleConverter extends NumberConverter implements Serializable,StateHolder{
/**
* <code>serialVersionUID</code>.
*/
private static final long serialVersionUID = 1L;
private Double unit;
/**
* If unit is defined then multiply by the unit number (to get to the correct value) and pass
* on to the @see NumberConverter class
*/
@Override
public Object getAsObject(FacesContext ctx, UIComponent comp, String value) {
if(value == null){
return null;
}
value = value.trim();
if(value.length() == 0){
return null;
}
Object obj = super.getAsObject(ctx, comp, value);
Double theDouble = new Double(((Number)obj).doubleValue());
if(unit == null){
return theDouble;
}
return new Double(theDouble.doubleValue()*unit.doubleValue());
}
/**
* If unit is defined, then divide by the unit amount and pass down to the @see NumberConverter class.
*/
@Override
public String getAsString(FacesContext ctx, UIComponent comp, Object value) {
String retVal = null;
if(unit == null){
retVal = super.getAsString(ctx, comp, value);
}
else {
Number num = (Number)value;
retVal = super.getAsString(ctx, comp, new Double(num.doubleValue()/unit.doubleValue()) );
}
return retVal;
}
@Override
public void restoreState(FacesContext context, Object state) {
Object values[] = (Object[]) state;
super.restoreState(context, values[0]);
setUnit((Double)values[1]);
}
@Override
public Object saveState(FacesContext context) {
Object values[] = new Object[2];
values[0] = super.saveState(context);
values[1] = getUnit();
return values;
}
public Double getUnit() {
return unit;
}
public void setUnit(Double unit) {
this.unit = unit;
}
}
The exception I'm getting is this:
2008/10/06 08:45:27,939 handling uncaught exception javax.servlet.ServletException: dreba.prj.limex.web.jsf.converters.UnitDoubleConverter_$$_javassist_5 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:277) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.jamonapi.JAMonFilter.doFilter(JAMonFilter.java:57) 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.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) 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:177) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) 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:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) 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.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) 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:619) 2008/10/06 08:45:27,939 exception root cause java.lang.IllegalStateException: dreba.prj.limex.web.jsf.converters.UnitDoubleConverter_$$_javassist_5 at javax.faces.component.StateHolderSaver.restore(StateHolderSaver.java:101) at javax.faces.component.UIComponentBase.restoreAttachedState(UIComponentBase.java:1441) at javax.faces.component.UIOutput.restoreState(UIOutput.java:226) at javax.faces.component.UIInput.restoreState(UIInput.java:1235) at javax.faces.component.html.HtmlInputText.restoreState(HtmlInputText.java:879) at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1166) at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1182) at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1182) at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1182) at javax.faces.component.UIComponentBase.processRestoreState(UIComponentBase.java:1182) at org.ajax4jsf.application.AjaxStateManager.restoreView(AjaxStateManager.java:415) at com.sun.faces.application.ViewHandlerImpl.restoreView(ViewHandlerImpl.java:316) at org.jboss.seam.jsf.SeamViewHandler.restoreView(SeamViewHandler.java:93) at com.sun.facelets.FaceletViewHandler.restoreView(FaceletViewHandler.java:316) at org.ajax4jsf.application.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:116) at com.sun.faces.lifecycle.RestoreViewPhase.execute(RestoreViewPhase.java:176) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:104) 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:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at com.jamonapi.JAMonFilter.doFilter(JAMonFilter.java:57) 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.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:177) at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:267) at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:380) at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:507) at org.jboss.seam.web.Ajax4jsfFilter.doFilter(Ajax4jsfFilter.java:60) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:68) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81) 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.CustomPrincipalValve.invoke(CustomPrincipalValve.java:39) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:159) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:407) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) 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:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) 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:619)