gistfile1.m

#import <Foundation/Foundation.h>

@protocol AGEntity <NSObject>

@optional
-(NSDictionary*) mapping;

@end

@inteface Customer: NSOBject<AGEntity>
@property(nonatomic, copy) NSString *name

-(NSDictionary)mapping {
// user describes ANY relations and Array types
}


-(id) initWithConfig:(id<AGPipeConfig>) pipeConfig entity:(id<AGEntity>)entity {
...

      NSDictionary *mapping = [entity mapping];

      if (mapping == nil) {  // no mapping
            _parser =  [DCKeyValueObjectMapping mapperForClass: [_entity class]];
        } else {
            for (NSString* name in [mapping allKeys]) {
                DCArrayMapping *mapper = [DCArrayMapping mapperForClassElements: :[mapping objectForkey:name] forAttribute:name]
            onClass:[_entity class]];

                DCParserConfiguration *config = [DCParserConfiguration configuration];
                [config addArrayMapper:mapper];
            }
            _parser = [[DCKeyValueObjectMapping mapperForClass:[_entity class]  andConfiguration:configuration];

        }