Erik,
The smart way to do this is abstract the business logic from that particular
page.
For example, create a 'Pager' object that stores the start and max items per
page.
Then you can have pager.getNextStart(), pager.getLastStart(),
pager.getEnd(), pager.getMax() etc.
Your action only needs one method - getPager()
Your view can then just have <a
href="MyAction.action?pager/start=<ww:property value="pager/nextStart" />">
This pager can then be used to page through ANY objects!
You can even implement a pager.getCurrentPage(List of object) which returns
a list containing only the current page of objects (given that the pager
knows the start and max).
Hope this helps - it's a very useful pattern.
-mike
On 14/11/02 1:53 AM, "Erik Beeson" ([EMAIL PROTECTED]) penned the
words:
> I return a very, very long list and would like to be able to page through
> it. I have a startIndex and count. The link to the next page should be
> startIndex=(startIndex+count); Since the business end was getting the list
> in the first place, this indexing stuff seemed like it belonged on the
> view end, but I guess I'll add a nextIndex and previousIndex fields or
> something.
>
> --Erik
>
> On Wed, 13 Nov 2002, Maurice Parker wrote:
>
>>
>> Erik Beeson wrote:
>>
>>> I have and action that has two getters that return ints. Is there a way
>>> for my view to render the sum of them? Currently I use a bean that has a
>>> method int sum(int x, int y) { return x+y; }. Is there a better way?
>>>
>>>
>> Nope. You're doing it the right way. I'm not sure what you're adding,
>> but probably the sum has some kind of business meaning and this business
>> logic should be in the model.
>>
>> As a general rule of thumb, if you are having trouble trying to get the
>> expression language to do something, it may be a sign that you are
>> embedding business logic, rather than presentation logic, in your JSP.
>> The WebWork EL is is fairly powerful, but I almost never use any of
>> it's more advanced functionality.
>>
>> -Maurice
>>
>>
>>
>>
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