Re: [castor-user] XML: Mapping Lists inside of Maps?

[Tim Mulle']

I answered my own question, I had to specify "arraylist" instead of  
"collection" for the collection type..

Tim Mulle' wrote:
Hi,
I have a map that contains strings as the keys and ArrayLists as the 
value for the keys. Is it possible to have Castor map this to 
something like:

<key name="Key">
  <value>A</value>
   <value>B</value>
</key>
Basically, I'm not sure how write the values out.. I tried something 
like:

          <field name="roleMappings" collection="map">
           <bind-xml name="mapping" location="role-mappings">
               <class name="org.exolab.castor.mapping.MapItem">
                   <field name="key" type="string">
                       <bind-xml name="name" node="attribute"/>
                   </field>
                   <field name="value" type="string" 
collection="collection">
                       <bind-xml node="element"/>
                   </field>
               </class>
           </bind-xml>
       </field>

but that didn't work, and I got an exception:
org.exolab.castor.mapping.MappingException: The return type for method 
public java.lang.Object org.exolab.castor.mapping.MapItem.getValue() 
does not match the declared field type java.util.Collection

Do I need a custom field handler to handle this situation?
Thanks,
- Tim

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