Muti-Maps in a single Form

Question

Hi, everyone.
It's actually sth related to Struts. Just a simple question: can an ActionForm contain Muti-Maps instead of a single map?
Something like below:
public class ProfileableForm extends ActionForm
* get the map that keeps all children of the current container
public Map getChildrenMap()
return this.childrenMap;
public void setChildrenMap(Map cm)
this.childrenMap = cm;
public void setChild(String childName, Object child) throws Exception
getChildrenMap().put(childName, child);
public Object getChild(String childName) throws Exception
return getChildrenMap().get(childName);
* get the map that keeps all ancestries of the current container
public Map getAncestryMap()
return this.ancestryMap;
public void setAncestryMap(Map am)
this.ancestryMap = am;
public void setAncestry(String ancestryName, Object ancestry) throws Exception
getChildrenMap().put(ancestryName, ancestry);
public Object getAncestry(String ancestryName) throws Exception
return getChildrenMap().get(ancestryName);
private Map childrenMap = null;
private Map ancestryMap = null;
}

Answer 1

Nicky,
When the iterate tag is evaluated, the code checks the type of the provided collection. If it's a Map, the tag calls ((Map)collection).entrySet().iterator() on it to get the iterator. So the items being iterated are instances of Map.Entry (an inner class of Map). Map.Entry includes getKey() and getValue() methods, which you can access from within the iteration like this:
<logic:iterate  id="mapEntry" name="profileableForm" property="ancestryMap">
      <html:link forward="getprofileableinfo">
            <bean:write name="mapEntry" property="key"/>
            <bean:write name="mapEntry" property="value"/>
      </html:link><BR>
</logic:iterate>Jonathan