Re: [Springframework-developer] non-String keys for map entries

[<tho...@tr...>]

I too think this would be valuable.

I'd like to keep it simple.  The following seems to me the most consistent with
the current syntax and with the Map interface itself:

<map>
  <entry keyref="myBean">
    <ref bean="myTarget"/>
  </entry>
</map>

or 

<map>
  <entry>
    <key>
      <ref bean="myKeyBean"/>
    </key>
    <value>
      <ref bean="myTargetBean"/>
    </value>
  </entry>
</map>

This should also be valid, but I would not recommend using it:

<map>
  <entry>
    <key>
      <ref bean="myKeyBean"/>
    </key>
    <ref bean="myTargetBean"/>
  </entry>
</map>


Thomas



Quoting Colin Sampaleanu <col...@ex...>:

> I agree it would be very good to have. I've been hit a few times by the 
> lack.
> 
> I am ok with your syntax, given that probably most of the uses will 
> still be the simple case. An alternative would be to have another kind 
> of entry allowed
> 
> <map>
>   <complexentry>
>     <key>
>       <ref bean="myKey"/>
>     </key>
>     <value>
>       <ref bean="myTarget"/>
>     </value>
>   </complexentry>
> </map>
> 
> 'complexentry' is just a name I came up with now. I don't really like it 
> or think it that suitable...
> 
> Colin
> 
> 
> jürgen höller [werk3AT] wrote:
> 
> >A colleague of mine just suggested that <entry> tags in XML bean definitions
> should also support non-String keys: After all, a java.util.Map can take any
> Object as key.
> >
> >So instead of just the current:
> >
> ><map>
> >  <entry key="myKey">
> >    <ref bean="myTarget"/>
> >  </entry>
> ></map>
> >
> >We could also support something like the following:
> >
> ><map>
> >  <entry>
> >    <key>
> >      <ref bean="myKey"/>
> >    </key>
> >    <ref bean="myTarget"/>
> >  </entry>
> ></map>
> >
> >The problem is the syntax: It looks odd to have the <ref> Map value at the
> same level as the <key> subtag, with the latter having a nested <ref>
> again...
> >
> >Any ideas?
> >
> >Juergen
> >
> >
> >DI Jürgen Höller
> >Senior System Architect
> >______________________________________
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> >
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