understanding EAGLView

@protocol EAGLViewDelegate <NSObject>
- (void) didResizeEAGLSurfaceForView:(EAGLView*)view;
   //Called whenever the EAGL surface has been resized
@end

@interface EAGLView : UIView
{
  @private
    id<EAGLViewDelegate>    _delegate;
}


@property(assign) id<EAGLViewDelegate> delegate;

@implementation EAGLView

@synthesize
    delegate      = _delegate,

//......
@end