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Date: Mon, 17 Sep 2007 18:20:57 -0400
From: "James Carman" <james@carmanconsulting.com>
Sender: jcarman@carmanconsulting.com
To: "Jakarta Commons Users List" <user@commons.apache.org>
Subject: Re: BeanUtils setProperty IllegalArgumentException: Null property
 value for property
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So, I'd say you need to do this...

public class Address {
  private City city =3D new City();
  ...
}

On 9/17/07, N=E9stor Bosc=E1n <nestor.boscan@tcs.com.ve> wrote:
> I don't see anywhere in the code that PropertyUtils access a Digester. In
> the code it clearly shoes that it access an attribute, if it's null an
> exception is thrown. It does not check or tries to instantiate the object=
.
>
> Regards,
>
> N=E9stor Bosc=E1n
>
> -----Mensaje original-----
> De: jcarman@carmanconsulting.com [mailto:jcarman@carmanconsulting.com] En
> nombre de James Carman
> Enviado el: Lunes, 17 de Septiembre de 2007 03:25 p.m.
> Para: Jakarta Commons Users List
> Asunto: Re: BeanUtils setProperty IllegalArgumentException: Null property
> value for property
>
> Who said anything about Digester?
>
> On 9/17/07, Madisetti, Sumesh <sumesh.madisetti@citi.com> wrote:
> > Your digester rules files should be as follows -
> >
> > The following digester file will parse the content below and return you=
 an
> Address object with a City object inside it and the name of it set to NYC=
.
> >
> > <digester-rules>
> >         <pattern value=3D"address">
> >                 <object-create-rule classname=3D"Address"/>
> >                 <pattern value=3D"city">
> >                         <object-create-rule classname=3D"City"/>
> >                         <bean-property-setter-rule pattern=3D"name"
> propertyname=3D"name" />
> >                         <set-next-rule methodname=3D"addCity"/>
> >                 </pattern>
> >         </pattern>
> > </digester-rules>
> >
> > Content-
> > <address>
> >         <city><name>NYC</name></city>
> > </address>
> >
> >
> > -----Original Message-----
> > From: N=E9stor Bosc=E1n [mailto:nestor.boscan@tcs.com.ve]
> > Sent: Friday, September 14, 2007 9:38 PM
> > To: user@commons.apache.org
> > Subject: BeanUtils setProperty IllegalArgumentException: Null property
> > value for property
> >
> > Hi
> >
> > I suppose that this has been asked and answered before but I can't find
> the solution. I have some classes like this:
> >
> > public class Address {
> >   private City city;
> >
> >   public City getCity () { return city; }
> >
> >   public void setCity (City city) { this.city =3D city; } }
> >
> > public class City {
> >   private String name;
> >
> >   public String getName ( return name; }
> >
> >   public void setName (String name) { this.name =3D name; } }
> >
> > And I'm trying to set the city's name like this:
> >
> > PropertyUtils.setProperty (address, "city.name", "Toronto");
> >
> > And I'm getting IllegalArgumentException: Null property value for 'name=
'.
> >
> > Now I checked the 1.6 BeanUtils code and it doesn't instantiate the cla=
ss
> anywhere. Is this something that BeanUtils does?. If not does anybody kno=
ws
> another technology that can do this?
> >
> > Regards,
> >
> > N=E9stor Bosc=E1n
> >
> > ---------------------------------------------------------------------
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> >
> >
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