bean:define and hash map

[sudharshan tettu]

Hi

i have one hashmap field in my form bean.It inturn contains few hasmap in it,which is set in the action class.
My requirement is i have to retreive a hashmap basing on the key ,from the field in my form bean and have to use that one to populate drop down ...
any idea??
I mean

in my form bean
HashMap testMap()=null; //it has getter and setter in the bean


i am setting some other hashMap to it in my action class..
like
//action class

HashMap sampleMap=new HashMap();
HashMap sampleMap1 =new HashMap();

sampleMap.put("sampleMap1",sampleMap);
myForm.setTestMap(sampleMap);


>on my jsp i want to retrieve the key and value pairs in sampleMap1 and have to make use it to populate my drop downs...
any help?

[Dileep Kamath]

You can access the map this way:

The action class code:

 
HashMap sampleMap=new HashMap();
HashMap sampleMap1 =new HashMap();
sampleMap1.put("Dileep","Kamath");
sampleMap.put("sampleMap1",sampleMap1);
request.setAttribute("sampleMap",sampleMap);

The jsp code:

  
<logic:iterate scope="request" name="sampleMap" id="sampleMap">
<bean :D efine id="sampleMapKey" name="sampleMap" property="key"/>
<logic:equal name="sampleMapKey" value="sampleMap1">
<bean:write name="sampleMap" property="value"/>
</logic:equal>
</logic:iterate>

The result:

  {Dileep=Kamath}   

I hope this is the only place in the application where you are accessing the above data structure, if not then it would better to design a custom tag for the same.
[ July 27, 2006: Message edited by: Dileep Kamath ]