Re: ArrayList called with specific object constructors

From:
"Alessandro" <nemo@nobody.it>
Newsgroups:
comp.lang.java.programmer
Date:
Wed, 29 Apr 2009 01:44:36 +0200
Message-ID:
<DxMJl.37065$VA5.7616@tornado.fastwebnet.it>

The idea is that you want to be able to use a factor of Integers (e.g.)
to fill a list of Numbers. The other way of doing this is to do this:
public <T> List<? super T> makeList(Factory<T> factory)


That's clear, but I have problems with calling the interface Factory.
Still viewed Robert code but it can't work because instantiating an
interface.

This is my edited fragment:

//START
*** Factory interface ***
public interface Factory<T> {
 public T makeObject(String s1, String s2);
}

*** class calling generic method (implements Factory ??? implements
Factory<T> ???***
....
ArrayList<Ric> ricList=xmlService.xml2ListGEN(new Factory<Ric>());

*** class with generic method ***
private <T> ArrayList<T> xml2ListGEN(Factory<T> factory){

  ArrayList<T> list=new ArrayList<T>();
  list.add(factory.makeObject("value1","value2"));
  return list;
 }

*** Ric class was the same ***
//END

Please could you give just again a look ?

Thanks and best regards,
Alessandro

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