Re: [WebMacro-user] How to subclass WebContext?

[Lane S. <la...@sa...>]

Hi Marc,

I believe you are discussing the classical binding problem: data is 
retrieved in "jetools" format and you want it to be "wm formattable"? Is 
this correct?

If so, take a look at the new class file, o.w.util.SparseProperties. 
This is a subclass of Properties which is general enough to allow one to 
write property exchange adapters. You will see this class in the next 
release posted by Eric.

SparseProperties also has a feature which some of you will like but that 
is completely specifiable: you can customize how you want a null value 
returned: null, "", 0.00, or new AnonValue(). This is highly useful when 
iterating over a property set and some of the keys are not-null but the 
values are null and you just want "" in your template output.

kindest regards,

Lane

Marc van de Geijn wrote:

>Hi,
>
>I hope this is the place to ask the following question. If not, just ignore
>it.
>
>First of all: I'm new to WebMacro (using it for a week now) and the more I
>get to know it, the more I like it. Great job!
>
>What I'm trying to do is: At one side there are the WebMacro classes for
>processing the Web requests and responses, on the other the Jetgen classes
>(http://www.jetools.com) for access to the database.
>
>I've got both up and running. Somehow I want to make the conversion of the
>data from the jetgen classes into the WebMacro classes easy. I was thinking
>about subclassing the WebContext class to add methods to do just that. I
>already have a subclass of WMServlet to do some basic stuff with form data.
>
>The problem is: there are so many final classes, that I'm wondering if it is
>possible to do this. Especially the newInstance method. Can somebody give me
>tips on how to do this so I can use that WebContext subclass in the
>WMServlet subclass I've already created? Or is there some other approach
>somebody can recommend for this problem?
>
>Kind regards,
>Marc
>
>
>
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