[Springframework-developer] =?iso-8859-1?Q?Re:_=09Re:_[Springframework-developer]_Spring_bean_factory_XML_format?=

[=?iso-8859-1?Q?<jp....@ti...>]

Hi Rod,=0D=0A=0D=0AAs the proposal is consistent and real needs are invok=
ed, I have no more objection.=0D=0A=0D=0ARegards,=0D=0AJean-Pierre=0D=0A=0D=
=0A---------- Initial Header -----------=0D=0A=0D=0AFrom      : springfra=
mew...@li...=0D=0ATo          : "jp.pawla=
k...@ti..." <jp....@ti...>=0D=0ACc          : "rod.johnson" <ro=
d.j...@in...>,       isabelle <isa...@me...>,    =
   "rod.johnson" <rod...@in...>,       springframework-dev=
eloper <spr...@li...>=0D=0ADate      :=
 Wed, 28 May 2003 07:25:25 -0400=0D=0ASubject : Re: 	Re: [Springframework=
-developer] Spring bean factory XML format=0D=0A=0D=0AJP suggested:=0D=0A=
=0D=0A<bean class=3D"MyClass" id=3D"foos" singleton=3D"false> =0D=0A<prop=
erty name=3D"foo">FOO</property> =0D=0A<property name=3D"foo2" value=3D"F=
OO2"/> =0D=0A<property name=3D"foo3" refid=3D"foo3"/> =0D=0A<property nam=
e=3D"foo4"> =0D=0A   <data>FOO4.1</data> =0D=0A   <data value=3D"FOO4.2"/=
> =0D=0A   <data refid=3D"foo4.3"/> =0D=0A</property> =0D=0A</bean> =0D=0A=
=0D=0A=0D=0AThe problem I see here is that there are 3 ways of defining =0D=
=0Aliterals:=0D=0A- in the body of the property element (as before)=0D=0A=
- in a value attribute. I don't think this is a good idea, as =0D=0Aattri=
butes can only hold simple strings without getting into =0D=0Anasty escap=
ing.=0D=0A- in a <data> element, which is necessary anyway for a =0D=0Aco=
llection.=0D=0A=0D=0AJuergen makes a good point about mixed collections o=
f =0D=0Areferences and string data (which of course would be =0D=0Aconver=
ted to objects). Initially I thought this was unlikely, =0D=0Abut I reali=
sed it has quite a few uses (with the AOP proxy =0D=0Afactory, for exampl=
e), and the <value> subelement I suggested =0D=0Ahandles it. (It's alread=
y implemented: see collections.xml in =0D=0Abeanfactory.xml tests.)=0D=0A=
=0D=0AThe most consistent approach IMHO is:=0D=0A=0D=0A<bean class=3D"MyC=
lass" id=3D"foos" singleton=3D"false> =0D=0A<property name=3D"foo"><value=
>FOO</value></property> =0D=0A=0D=0A<property name=3D"foo3">=0D=0A  <ref =
refid=3D"foo3"/> =0D=0A</property>=0D=0A<property name=3D"foo4"> =0D=0A  =
 <value>FOO4.1</value> =0D=0A   <value>FOO4.2</value>=0D=0A   <ref refid=3D=
"foo4.3"/> =0D=0A</property> =0D=0A</bean> =0D=0A=0D=0AAlways consistent:=
 always at least one value or ref =0D=0Asubelement of a property elt; <va=
lue> contains only text =0D=0Adata; ref body must be empty.=0D=0A=0D=0ASl=
ightly more verbose, but probably easier to author with an =0D=0AXML edit=
or (even the basic Eclipse XML editor I use most of =0D=0Athe time).=0D=0A=
=0D=0AI don't care whether it's called value or data, or anything =0D=0Ae=
lse...any ideas?=0D=0A=0D=0ARegards,=0D=0ARod=0D=0A=0D=0A=0D=0A----------=
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