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Subject: RE: BeanUtils setProperty IllegalArgumentException: Null property
 value for property
Date: Mon, 17 Sep 2007 17:53:36 -0400
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Thread-Topic: BeanUtils setProperty IllegalArgumentException: Null property
 value for property
Thread-Index: Acf5X+ajyG7sQCTsRHeRQygGWDlDTQAEKBAgAAAm0JA=
From: "Madisetti, Sumesh " <sumesh.madisetti@citi.com>
To: "Jakarta Commons Users List" <user@commons.apache.org>
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Apologies for misleading you - for some reason I thought you were using =
digester.

Playing with this I see that you have to set the City first or you need =
to instantiate City as in -=20
public class Address {
 private City city =3D new City();



-----Original Message-----
From: N=E9stor Bosc=E1n [mailto:nestor.boscan@tcs.com.ve]=20
Sent: Monday, September 17, 2007 5:22 PM
To: 'Jakarta Commons Users List'
Subject: RE: BeanUtils setProperty IllegalArgumentException: Null =
property value for property

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=20

-----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=20
> 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=20
> 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=20
> class
anywhere. Is this something that BeanUtils does?. If not does anybody =
knows another technology that can do this?
>
> Regards,
>
> N=E9stor Bosc=E1n
>
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