[digester] Setting same object within parent

[Steve Blom <st...@yahoo.com>]

Hi all,
How can i do a recursive set where one object contains
many of the same object that can go any number of
levels down?
class Person{
  String name;
  List personList = new ArrayList();

  public void addPerson(Person p){
    personList.add(p);
  }
<root>
  <person name="bob">
    <person name="joe"/>
    <person name="sue">
      <person name="billy">
        ...
      </person>
    </person
  </person>
</root>

Thanks so much,
Steve


		
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Re: [digester] Setting same object within parent

[Reid Pinchback <re...@yahoo.com>]

The class below should get you output like:

    adamOrEve name=bob
    adamOrEve #children=2
    adamOrEve first child name=joe
    adamOrEve second child name=sue




import org.apache.commons.digester.*;
import java.io.*;
import java.util.*;

public class ParentExample {
    
  public static class Person {
    String name;
    List personList = new ArrayList();
    public void addPerson(Person p){
      personList.add(p);
    }
    public void setName(String name) { this.name=name;
}
    public String getName() { return name; }
  }

  public static class Root {
    Person adamOrEve;
    public void addPerson(Person p){
      adamOrEve=p;
    }
  }

  Digester makeConfiguredDigester() {
    Digester digester=new Digester();
    digester.addObjectCreate("*/person",
Person.class);
    digester.addSetProperties("*/person");
    digester.addSetNext("*/person", "addPerson");
    return digester;
  }

  public static void main(String[] args) throws
Exception {
    String input="<root><person name='bob'><person
name='joe'/><person name='sue'/></person></root>";
    ParentExample ex=new ParentExample();
    Digester digester=ex.makeConfiguredDigester();
    Root root=new Root();
    digester.push(root);
    digester.parse(new StringReader(input));
    System.out.println("adamOrEve
name="+root.adamOrEve.name);
    System.out.println("adamOrEve
#children="+root.adamOrEve.personList.size());
    System.out.println("adamOrEve first child
name="+((Person)root.adamOrEve.personList.get(0)).name);
    System.out.println("adamOrEve second child
name="+((Person)root.adamOrEve.personList.get(1)).name);
  }
  
}

--- Steve Blom <st...@yahoo.com> wrote:

> Hi all,
> How can i do a recursive set where one object
> contains
> many of the same object that can go any number of
> levels down?
> class Person{
>   String name;
>   List personList = new ArrayList();
> 
>   public void addPerson(Person p){
>     personList.add(p);
>   }
> <root>
>   <person name="bob">
>     <person name="joe"/>
>     <person name="sue">
>       <person name="billy">
>         ...
>       </person>
>     </person
>   </person>
> </root>
> 
> Thanks so much,
> Steve
> 
> 
> 		
> __________________________________ 
> Do you Yahoo!? 
> Check out the new Yahoo! Front Page. 
> www.yahoo.com 
>  
> 
> 
>
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> 
> 



		
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