Hello,
I do something similar in a page constructor, even with accessing the
service layer. I have the same concerns, if this is correct. In general I do
not like if a constructor does any significant (eventually time consuming)
work like database access or other. But I did not find an other solution
neither.
Maybe it could be "postponed" by using a model which executes the needed
calls to the service layer in an lazy fashion.
Carsten
Jonas505 wrote:
>
> Thank you for the quick reply.
>
> It's already working fine, I was just wondering if it is best practice to
> call business logik from the constructor:
>
> public PageB(PageParameters p) {
> // can throw an exception:
> DataSet result = callMyBusinessLogik(p.getString("param1"),
> p.getString("param2"));
> preparePageBComponents(result);
> }
>
> Jonas
>
> From: Martijn Dashorst
> 14 Jan 2009 14:24:21 +0100
> Subject: Re: Where to process PageParameters
>
>> setResponsePage(PageB.class, parameters);
>>
>> or use a bookmarkablepagelink
>>
>> Martijn
>>
>> On Wed, Jan 14, 2009 at 1:06 PM, Jonas505 <jonas.hoepf...@iteratec.de>
>> wrote:
>> >
>> > Hello,
>> >
>> > I would like to know, where in my WebPage class PageParameters should
>> be
>> > processed.
>> >
>> > I have a page A where you can fill in certain parameters (or select a
>> > predefined set of parameters). Then you submit those parameters which
>> are
>> > given to the business logic to prepare some data. The resulting data is
>> > shown on page B. I would like that the user can bookmark page B with
>> those
>> > parameters encoded in the URL.
>> >
>> > This works fine with page B having a constructor taking PageParameters.
>> > However, right now I call the Business-Logik from the constructor of
>> page
>> B,
>> > which seems strange. Am I missing something or is this the way to go?
>> >
>> > Thank you!
>> > Jonas
>> > --
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>> >
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>>
>>
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