MulleObjCClassCluster

Protocol for implementing class clusters in mulle-objc. A class cluster is an abstract factory pattern that returns concrete subclasses while hiding the implementation details.

Required Methods

• +__classClusterClass - Returns the actual concrete class to instantiate

Optional Methods

• +initialize - Must call [super initialize] or MulleObjCClassMarkAsClassCluster() if overridden

Helper Functions

• MulleObjCClassMarkAsClassCluster - Mark class as cluster
• MulleObjCClassIsClassCluster - Check if class is cluster

Usage

Use this protocol to implement class clusters: - Your abstract base class adopts MulleObjCClassCluster and will alloc placeholder - Your concrete subclasses inherit from your base class and will use NSAllocateObject

Note: The class cluster pattern is used to provide a simpler public interface while allowing multiple specialized implementations internally.