Hi Gustavo,
Thank you for your reply.
My problem is that, I have different subclasses of the Class Question. and
since the form is dynamic, there is no way for me to know which Question
objects are going to come through...
I thought the only way is to have an interceptor or i just read about type
converters.. using which i can determine the correct class before the objects
reach my action class..
--- On Wed, 22/4/09, Gustavo Felisberto <gustavo.felisbe...@wit-software.com>
wrote:
From: Gustavo Felisberto <gustavo.felisbe...@wit-software.com>
Subject: Re: How to get subclass objects in an arraylist?
To: "Struts Users Mailing List" <user@struts.apache.org>
Date: Wednesday, 22 April, 2009, 2:25 PM
I guess the problem IS the fact that the type on elements in the list
not being the correct type.
public class Parent {
private String parent = "parent";
public String getParent() {
return parent;
}
public void setParent(String parent) {
this.parent = parent;
}
}
public class Child extends Parent{
private String childName = "child";
public String getChildName() {
return childName;
}
public void setChildName(String childName) {
this.childName = childName;
}
}
If you do:
List<Parent> list = new ArrayList<Parent>();
list.add(new Child());
list.get(0).getChildName();
It will not build, you have to cast the Object to the correct type:
((Child)list.get(0)).getChildName();
Same thing for jsp files.
--
Gustavo Felisberto.
WIT-Software, Lda
Coimbra (Portugal), San Jose (California)
Phone: +351239801030
Web: http://www.wit-software.com
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