get list value using index in logic : iterate

[Shilpa Tendulkar]

Hi

I have a list (allChannels) with channelIds and name(say about 50) and another list(zoneChannels) which contains few channelIds only(say about 5).
What I am expecting here is, when I iterate allChannels list, I want to set the index from zoneChannels Ids to allChannels list and get the value directly. like in java you can say list.get(1) will return the element.

What I have tried here is

   
<logic:iterate name="allChannels" property="channelID">
          <logic:iterate name="zoneChannels"  property="zoneChannelID">
                    <logic:present name="allChannels" property="channelID" parameter="zoneChannelID">
                        found (display channel name)
                    </logic:present>
          </logic:iterate>
</logic:iterate>
 

Can anyone help me with how to achive this using struts tag please?

[Shilpa Tendulkar]

I am almost there I used logic : match

  
<logic:iterate name="aZone" property="channels" id="aChannel">
       <bean:define name="aChannel" id="zoneChannelID"/>  // i have to do this because channels is a arraylist with primitives
                <bean:write name="zoneChannelID"/>  // this gives me primitive values contained in a list
                    <logic:match name="channel" property="channelID" value="zoneChannelID">
                        <bean:write name="channel" property="name"/><br>
                    </logic:match>                  
                </logic:iterate>
  

problem with this is how do i set the value as a "zoneChannelID" to <logic : match >

Please help...

[Shilpa Tendulkar]

I finally resolved this. I found you can not nest <bean : write > with logic tags

So what I have done is, I used <logic : equal > and get the zoneChannelID variable in java and use it in logic

    
<bean:define name="aChannel" id="zoneChannelID"/>
<% String zoneChID = pageContext.getAttribute("zoneChannelID").toString(); %>
<logic:equal name="channel" property="channelID" value="<%=zoneChID%>">
display something here
</logic:equal>