Can you try this.allCategories.add(new SelectItem(category.getId(), category.getTitle()));
The getId() method should return the same value as returned by getAsString(). I think there is some problem... Srikanth -----Original Message----- From: Kostas Karadamoglou [mailto:[EMAIL PROTECTED] Sent: Friday, March 18, 2005 10:56 AM To: MyFaces Discussion Subject: Re: Problem with the getAsObject of a Converter Hi, I attached the getter of allcategories, as you can see I return a list of selectItem objects public List getAllCategories(){ if(this.allCategories==null){ this.allCategories=new ArrayList(); this.allCategories.add(new SelectItem(new Category(),"Choose a category...")); List categories=this.eventRegistry.getCategories(); for(Iterator iter=categories.iterator(); iter.hasNext();){ Category category=(Category)iter.next(); this.allCategories.add(new SelectItem(category, category.getTitle())); } } return this.allCategories; } Srikanth Madarapu wrote: >What is the return type of allCategories ? > >The list coming from allCategories should be a list of "SelectItem" objects, I >think in yours case its just a list of Strings > >-Srikanth > > >-----Original Message----- >From: Kostas Karadamoglou [mailto:[EMAIL PROTECTED] >Sent: Friday, March 18, 2005 9:17 AM >To: [email protected] >Subject: Problem with the getAsObject of a Converter > > >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; > } > > >
