Converters are utility classes that convert from an object to a showable object on the screen and the other way around. Say you have a Date object in your bean, it should eg convert the date object to the "readable" format of the date like : 12-12-2003. If the user types eg 12-12-2004, the convert should convert the value to a valid Date object. It always returns null when conversion is impossible. By using converters we avoid very complicated dictionary entries and a lot of hard to test code in nyx to handle this in another (automatic) fashion.
You can create converters by implementing the interface
The code speaks for itself.
For an example, have a look at the code of the default
converters in the org.xulux.dataprovider.converters package.
You can add converters via the dictionary xml file in the format
<converters> <converter class="org.xulux.nyx.converters.IntegerConverter"/> </converters>
If you don't use the use attribute in the gui xml, you can also
set the converter of the field using