RE: [Springframework-developer] Reworked root/child bean definition concept

[<jue...@we...>]

Well-spotted. I've just adapted PropertiesBeanDefinitionReader =
accordingly.

Juergen


-----Original Message-----
From: spr...@li...
[mailto:spr...@li...]On Behalf
Of Tom Turelinckx
Sent: Friday, July 09, 2004 2:36 PM
To: spr...@li...
Subject: Re: [Springframework-developer] Reworked root/child bean
definition concept


Hello Juergen,

> parent can even omit the bean class completely, simply specifying =
common
> properties for children:
>=20
>   <bean id=3D"inheritedTestBeanWithoutClass">
>     <property name=3D"name"><value>parent</value></property>
>     <property name=3D"age"><value>1</value></property>
>   </bean>
>=20
>   <bean id=3D"inheritsWithClass"
>   class=3D"org.springframework.beans.DerivedTestBean"
>       parent=3D"inheritedTestBeanWithoutClass" =
init-method=3D"initialize">
>     <property name=3D"name"><value>override</value></property>
>     <!-- age should inherit value of 1 from parent -->
>   </bean>
>=20
> Of course, such a parent bean cannot get instantiated on its own: It's
> just a template that serves as parent definition for children.
> preInstantiateSingletons will ignore such beans without class and =
parent
> completely.

I've accidentally noticed that this doesn't work when using a
PropertiesBeanDefinitionReader.

This bean definition file:

inheritedTestBeanWithoutClass.name =3D parent
inheritedTestBeanWithoutClass.age =3D 1

inheritsWithClass.class =3D org.springframework.beans.DerivedTestBean
inheritsWithClass.parent =3D inheritedTestBeanWithoutClass
inheritsWithClass.init-method =3D initialize
inheritsWithClass.name =3D override
# age should inherit value of 1 from parent

results in this exception:

org.springframework.beans.factory.BeanDefinitionStoreException: Error
registering bean with name 'inheritedTestBeanWithoutClass' defined in
file [...]: Either 'class' or 'parent' is required
	at =
org.springframework.beans.factory.support.PropertiesBeanDefinitionReader.=
registerBeanDefinition(PropertiesBeanDefinitionReader.java:368)
	at =
org.springframework.beans.factory.support.PropertiesBeanDefinitionReader.=
registerBeanDefinitions(PropertiesBeanDefinitionReader.java:269)
	at =
org.springframework.beans.factory.support.PropertiesBeanDefinitionReader.=
loadBeanDefinitions(PropertiesBeanDefinitionReader.java:159)
	at =
org.springframework.beans.factory.support.PropertiesBeanDefinitionReader.=
loadBeanDefinitions(PropertiesBeanDefinitionReader.java:140)

The same configuration in xml does work when using an
XmlBeanDefinitionReader.

Kind regards,
Tom.


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