1 

     2 function PropertyExtenders() {

     3 }

     4 

     5 	// Return instances that may provide extension properties

     6 	// The target instance parameter is the instance to receive the

     7 	// additional properties

     8 PropertyExtenders.prototype.getPropertyExtenders = function(instance, targetInstance) {

     9 	if (targetInstance.parent == instance)

    10 		return [instance];

    11 

    12 	return null;

    13 }

    14 	

    15 PropertyExtenders.prototype.getExtensionSetNames = function(instance, targetInstance) {

    16 	if (targetInstance.parent != instance)

    17 		return null;

    18 	var val = instance.properties.type;

    19 	if (val == "EElement1__")

    20 		return [ "element1" ];

    21 	if (val == "EElement_1_")

    22 		return [ "element2" ];

    23 	if (val == "EElement__1")

    24 		return [ "element3" ];

    25 	if (val == "EElement1_1")

    26 		return [ "element1", "element3" ];

    27 	if (val == "EElement11_")

    28 		return [ "element1", "element2" ];

    29 	if (val == "EElement_11")

    30 		return [ "element2", "element3" ];

    31 	if (val == "EElement111")

    32 		return [ "element1", "element2", "element3" ];

    33 	return null;

    34 }

    35