package mmw_simple_merge {

-- Model class. Distinguish between left and right references
	class MergeModel extends WModel {
		reference leftModel container subsets wovenModel : ModelRefXMI;
		reference rightModel container subsets wovenModel : ModelRefXMI;
		reference targetModel container subsets wovenModel : ModelRefXMI;		
	}

-- Model references. To keep track of woven models
	class ModelRefXMI extends WModelRef {
		attribute type : String;
		reference ownedElementRef [0-*] container : ElementRefXMI oppositeOf modelRef;		
	}
		
-- references to each woven element
	class ElementRefXMI extends WElementRef {
		reference modelRef: WModelRef oppositeOf ownedElementRef;
	}		
-------------------------------------------
--structural semantics
	
    
    class Pattern extends WLinkEnd {
    }
    
   
    abstract class Binding extends WLinkEnd {
    }
    
    class ValuedBinding extends Binding {
    	attribute bindValue : String;
    }
    

  
------------------------------------------------
		
	class MergeLink extends WLink {
		reference source[1-*] container : Binding;
		reference target container : Target;
	}	
	class Source extends  WLink {
	}
	class Target extends  WLinkEnd {
	}
	
	class Reference extends WLinkEnd {
	}
	
------------------------------------------------
-- concatenation	
	class Concat extends  WLink {
		reference predicates [2-*] : Predicate;
	}
--	class Predicate extends  WLinkEnd {
--	}
------------------------------------------------
-- percentage	
	
	class Percentage extends  WLink {
		reference voters container : Voters;
		reference votes container : TotalVotes;	
	}
	class Voters extends  WLinkEnd {
	}
	
	class TotalVotes extends  WLinkEnd {
	}	

------------------------------------------------
-- union 	
	class Union extends WLink {
		reference predicates[*] container : Predicate;
	}
	class Predicate extends  WLinkEnd {
	}