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From: Martin Gainty <mgainty@hotmail.com>
To: Struts Users Mailing List <user@struts.apache.org>
Subject: RE: Hibernate UserType and OGNL
Date: Thu, 14 Aug 2008 09:21:41 -0400
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Lukasz-
relvant doc located at
http://www.docjar.com/docs/api/com/opensymphony/xwork2/conversion/impl/Inst=
antiatingNullHandler.html
what is the value of property named ReflectionContextState#CREATE_NULL_OBJE=
CTS
?
so coding the constructor fixes the problem in which case your Null object =
is a simple bean as suggested here
If the null property is a simple bean with a no-arg constructor=2C it will =
simply be created using the ObjectFactory#buildBean(java.lang.Class=2C java=
.util.Map)  method.?
dziekuje
Martin=20
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> Date: Thu=2C 14 Aug 2008 14:19:59 +0200
> From: lukasz.lenart@googlemail.com
> To: user@struts.apache.org
> Subject: Re: Hibernate UserType and OGNL
>=20
> > ( also tried: <s:textfield> key=3D"bid.amount.amount" /> )
>=20
> This is correct
>=20
> > public Monetary getAmount() { return amount=3B }
> >
> > and Monetary beeing:
> > public class Monetary implements Serializable{
> >   private final BigDecimal amount=3B
> >   private final Currency currency=3B
> >
> >   public Monetary(BigDecimal amount=2C Currency currency) {
> >       this.amount =3D amount=3B
> >       this.currency =3D currency=3B
> >   }
> >
> >   public BigDecimal getAmount() { return amount=3B }
> >   public Currency getCurrency() { return currency=3B }
> >
> > I am getting either a field error or with "bid.amount.amount" :
> > ERROR [btpool0-2] InstantiatingNullHandler.nullPropertyValue(110) | Cou=
ld
> > not create and/or set value back on to object
> > java.lang.InstantiationException: com.app.model.Monetary
>=20
> Add default constructor to Monetary and will be ok
>=20
>=20
> Regards
> --=20
> Lukasz
> http://www.lenart.org.pl/
>=20
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>=20

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