Re: Why Use Thinlets? Why Build Your UIs Using XML?

From: "Robert Bajzat" <robert.bajzat <at> thinlet.com>
> ThinletConstants: it's simple to create the source of this file using
> Thinlet's 'dtd' field. it should be separated from Thinlet source, either
a
> class including static final strings or an interface, probably the later
is
> better, thus you could omit the ThinletConstants prefix in your source.

I would suggest a class is a better choice. By making Thinlet implement
ThinletConstants you require ThinletConstants at RUNTIME. If it is a class,
then the constants are copied to Thinlet.class at COMPILE time, so there is
no need to include ThinletConstants in the jar.

> Object Thinlet Wrapper:  some time ago I wrote a simple application to
> create those sources automatically from Thinlet's 'dtd' field to measure
its
> jar size, it creates the majority of the sources.
It has use as an additional jar for people who don't care so much about
download size.

> Validators: maxlength property is nice, but probably the list of
validators
> is longer (integer, decimal including iternationalized symbols, max value,
> date, after today, required, min length, cardnumber, accountnumber with
> checkdigit, etc.). Maybe I'll try to create a demo similar to
jgoodies.com's
> one. Probably textfield's insert and remove listeners are sufficients for
a
> common validation framework, probably these listeners methods should
return
> e.g. false boolean value to ignore e.g. a letter character in decimal
fied.
Firstly, maxlength deserves an attribute, its just that common and separate
from text content anyway.

For custom validation, boolean returns from the insert and remove methods to
decide if the change is permitted is the best way to go.

Stephen

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