I need help, with logic:iterate in HashMap

[Jose Larico]

I would like to do a ITERATE in a jsp page. For this I have been using a HashMap and each element of this map contains an ArrayList. In the array list different objects are stocked. I would lilke to recuperate each ArrayList and make it de second iterate. Ex.
ArrayList liste = new ArrayList();
UnObject o1 = new UnObject();
o1.setId(1);
o1.setSubject("Some text 1");
liste.add(o);
UnObject o2 = new UnObject();
o2.setId(2);
o2.setSubject("Some text 2");
liste.add(o2);
java.util.HashMap h = new java.util.HashMap();
h.put("MyID",liste);
request.setAttribute("myIterate",h);
<logic:iterate id="ref" name="myIterate">
.....
.....
</logic:iterate>
Thank...

[Uwe Barthel]

Originally posted by Jose Larico:
I would like to do a ITERATE in a jsp page. For this I have been using a HashMap and each element of this map contains an ArrayList. In the array list different objects are stocked. I would lilke to recuperate each ArrayList and make it de second iterate. Ex.
ArrayList liste = new ArrayList();
UnObject o1 = new UnObject();
o1.setId(1);
o1.setSubject("Some text 1");
liste.add(o);
UnObject o2 = new UnObject();
o2.setId(2);
o2.setSubject("Some text 2");
liste.add(o2);
java.util.HashMap h = new java.util.HashMap();
h.put("MyID",liste);
request.setAttribute("myIterate",h);
<logic:iterate id="ref" name="myIterate">
.....
.....
</logic:iterate>
Thank...

Ok, take a look into the documentation of the struts logic tag.
http://jakarta.apache.org/struts/userGuide/struts-logic.html
-----8<----------8<----------8<-----
...
Normally, each object exposed by the ITERATE TAG is an element of the underlaying collection you are iterating over. However, if you iterate over a Map, the exposed object is of type Map.Entry that has two properties:

key - The key under which this item is stored in the underlaying Map

value - The value that corresponds to this key.

So, if you wish to iterate over the values of a Hashmap, you would implement code like the following:

<logic:iterate id="element" name="myIterate"> (or use collection="<%= h %>")
    key: <bean:write name="element" property="key" />
    value: <bean:write name="element" property="value" />
</logic:iterate>

...
-----8<----------8<----------8<-----
So, hope that helps
Uwe Barthel

[sha ram]

Is there a nested logic iterate tag? If so, Please give me an example.

[sha ram]

Try this....
<%
ArrayList liste = new ArrayList();
liste.add("apple");
liste.add("grapes");
java.util.HashMap h = new java.util.HashMap();
h.put("MyID",liste);
request.setAttribute("attr",h);
%>
<logic:iterate id="it" name="attr">
<logic:iterate name="it" property="value" id="order">
<bean:write name="order" />
</logic:iterate>
</logic:iterate>