Support provides default implementations of the EOKeyValueCoding interface.
An EOCustomObject uses EOKeyValueCoding. Support's default implementations. Typically your custom enterprise object classes inherit from EOCustomObject and inherit the default implementations. The methods in the Support class are just like the methods defined by the EOKeyValueCoding interface, except they are all static methods and they take an extra argument-the enterprise object on which the default implementation should operate. For example, suppose you want to implement an Employee enterprise object class that doesn't inherit from EOCustomObject but that uses Support's default implementations.