Map c:forEach

Question

Hello All,
I have to display the parent child relationship in a table in a jsp.
I can have 3 levels the first one is home which can contain children and these children may or may not have children.I'm planning to using LinkedHashMap
whose key will be the parent and value is a transfer object which contains all its parent information and the list of children(again hasmap whose value contains the child info and its children).
I'm trying to display this structure in a table using c:forEach but could not succeed.I need to display parent followed by all its children and its sub children. Any ideas or snippet of code would be helpful
Thanks
Edited by: Greeshma12 on Oct 17, 2007 1:22 PM

Answer 1

c:forEach requires an object that implements the Collections interface, which a Map does not. What I would do is wrap the Map into a Bean of somesort. Have accessors for the Map's keySet method like a getEveryone() method that you can use the c:forEach on.
<c:forEach var="person" items="family.everyone">
Then have an accessor method for the Map itself, so you can access the particular person and components from the map, such as through this EL statement: family.tree[person] to get the value part of the entry.