It seems like everything is declared properly. Nothing is jumping
right out at me.
On Fri, 18 Mar 2005 15:52:57 +0000, Kostas Karadamoglou
<[EMAIL PROTECTED]> wrote:
> Hi Heath,
> this is the decleration of the managed bean and the converter in the
> faces-config.xml
>
> <managed-bean>
> <managed-bean-name>categoryConverter</managed-bean-name>
>
> <managed-bean-class>essex.cc403.jsf.CategoryConverter</managed-bean-class>
> <managed-bean-scope>session</managed-bean-scope>
> </managed-bean>
> <converter>
>
> <converter-for-class>essex.cc403.hbeans.Category</converter-for-class>
> <converter-class>essex.cc403.jsf.CategoryConverter</converter-class>
> </converter>
>
>
> Heath Borders wrote:
>
> >Is your category converter a session bean?
> >
> >
> >On Fri, 18 Mar 2005 14:17:16 +0000, Kostas Karadamoglou
> ><[EMAIL PROTECTED]> wrote:
> >
> >
> >>Hi again!!!
> >>
> >>I have another problem now, Very strange Can you suggest me a solution?
> >>
> >>I created a converter for objects of type Category in order to display
> >>some Category beans in a selectOneMenu tag.
> >>
> >>I have debuged the application and I noticed a strange behaviour of JSF
> >>which I cannot understand.
> >>Below I have the sequence explanation of the problem and the content of
> >>each method and jsp fragment.
> >>
> >>1)The getAsString method works perfectly and returns the following
> >>strings "0","1","2","3","4","5","6","7"
> >>
> >>2)The page is displayed properly, and I choose from the drop down menu a
> >>category.
> >>
> >>2)Afterwords JSF invokes getAsObject (I think for the chosen option)
> >>with the str parameter null !!!!!!!
> >>In this situation I return a null object (which is wrong).
> >>
> >>4)After that when the page is redisplayed the getAsString throw an
> >>Exception because of the null value
> >>
> >>JSP-------------------------------------------------------
> >> <h:selectOneMenu id="selectCategory"
> >>converter="#{categoryConverter}" value="#{eventHandler.selectedCategory}">
> >> <f:selectItems id="allCategories"
> >>value="#{eventHandler.allCategories}"/>
> >> </h:selectOneMenu>
> >>
> >>getAsString------------------------------------------------
> >>
> >> public String getAsString(FacesContext facesContext, UIComponent
> >>uIComponent, Object obj) throws ConverterException {
> >> String retValue=null;
> >> if(obj==null)
> >> throw new ConverterException("not null object of type
> >>Category expected");
> >> else if(obj instanceof Category){
> >> Category category=(Category)obj;
> >> map.put(new Integer(category.getId()), category);
> >> retValue=String.valueOf(category.getId());
> >> }else{
> >> throw new ConverterException("object of type Category
> >>expected received: "+obj.getClass().getName()+"="+obj.toString());
> >> }
> >> return retValue;
> >> }
> >>
> >>getAsObject------------------------------------------------
> >>
> >> public Object getAsObject(FacesContext facesContext, UIComponent
> >>uIComponent, String str) throws ConverterException {
> >> Category retValue=null;
> >> if(str!=null){
> >> try{
> >> System.out.println(str);
> >> Integer id=Integer.valueOf(str);
> >> retValue=(Category)map.get(id);
> >> }catch(Exception ex){
> >> throw new ConverterException("a number formatted string
> >>expected");
> >> }
> >>
> >> }else{
> >> //throw new ConverterException("a not null string expected");
> >> return null;
> >> }
> >> return retValue;
> >> }
> >>
> >>
> >>
> >
> >
> >
> >
>
>
--
-Heath Borders-Wing
[EMAIL PROTECTED]
