#17 Void transformer for excluding types

[Igor Spasic]

This might be a way how to exclude all properties of certain type. For example, i would like to exclude all FileInputStream properties, globally. I expect to register FileInputStream.class with that VoidTransformer().

Later in ObjectTranformer, after the line:
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TransformerWrapper transformer = (TransformerWrapper)context.getTransformer(value);
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you can add a check if transformer is void and simply continue the loop over BeanProperties.

[Igor Spasic]

My workaround for now is to use NullTranformer(), but that is not what i want;)