Hello,
I was going through your excellent article at
http://appfuse.org/display/APF/Using+Spring+MVC#UsingSpringMVC-controlle
rform
<http://appfuse.org/display/APF/Using+Spring+MVC#UsingSpringMVC-controll
erform>
I am great fan of appfuse.
I do have one question though in context of SPRING framework.
I would be grateful if you could take a moment from your busy schedule
and answer it.
I am having formBackingObject with ArrayList as one of the fileds with
objects of one POJO like
public class DataVendor implements Serializable
{
public String vendorID;
public String name;
}
On JSP I am going to iterate over this arraylist with vendorID as value
and name as label to prepare my multi select dropdown box.
I am using SPRING 2.5.2 and <form:select> tag.
This forces me to create a CustomEditor for converting the string back
into object and register it thourgh.
binder.registerCustomEditor(ArrayList.class, new MyCustomEditor());
The only 2 methods that I implemented are as follows.
It is not working because of ClassCastException.
Please help me out. I really need you at this point of time.
public String getAsText()
{
ArrayList al = (ArrayList) getValue(); -------> exception occurs
here because the getValue returns DataVendor.java
for(int i= 0; i < al.size(); i++)
{
DataVendor dv = (DataVendor)al.get(i);
s = s + dv.getVendorID();
}
return s;
}
public void setAsText(final String text)
{
ArrayList newal = new ArrayList();
ArrayList dataVendor = (ArrayList)ctx.getAttribute("DATA_VENDOR");
----> coming from ServletContext
StringTokenizer st = new StringTokenizer(text, ",");
while(st.hasMoreTokens() == true)
{
String s = st.nextToken();
for (int i=0; i < dataVendor.size(); i++)
{
DataVendor dv = (DataVendor)dataVendor.get(i);
if(dv.getVendorID().equalsIgnoreCase(s) == true)
{
newal.add(dv);
}
}
}
setValue(newal);
}
Thanks.
Chirag
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