Calling setter dynamically

Hi all,
I want to do something, but I'm not sure how to implement it in Java. I have a propertyChange method. This method is called from the client everytime a property is changed (for example a value of a input field is changed).
This propertyChange method holds two attributes. An identifier (which I use to find the business object in a model registry) and a PropertyChangeData class, this class holds the values required for the propertyChange (i.e. propertyName and newValue).
Now for the business object retrieved from the model registry I want to call the setter of the propertyName to set the newValue. So something like:
businessObject.set[propertyName](newValue); ..... how can I do this?
Cheers,
Rick

Wubinator wrote:
You mean keeping an XML or something that maps a property for a certain business object to a method? That doesn't seem very handy. Whenever a business object is changed or property names are altered you need to update the XML. If you forget to do this you create faults in your application or data mismatchesNah, it's very handy indeed. So you have to keep some XML up to date. So what? What's the alternative? Keeping loads of code up to date. Only yesterday I fixed several bugs where people had done exactly that - mapped properties in code - and failed to keep it up to date. I replaced dozens of lines of code, spread over several classes, with a single line in each class, and a single XML file which is the single point-of-contact for maintenance now. Much neater. As for it creating bugs, if your unit tests are up to scratch, it's not an issue. You do have unit tests, right?

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