Fires an OnChangingNodeAttribute event. To be called before changing an attribute of a node, with exact information about the change to occur, to allow rollback of changes, in case a transaction is underway.

Namespace: de.unika.ipd.grGen.libGr
Assembly: libGr (in libGr.dll) Version: GrGen.NET 7.1

Syntax

Copy

void ChangingNodeAttribute(
	INode node,
	AttributeType attrType,
	AttributeChangeType changeType,
	Object newValue,
	Object keyValue
)

Parameters

node INode: The node whose attribute is to be changed.
attrType AttributeType: The type of the attribute to be changed.
changeType AttributeChangeType: The type of the change which will be made.
newValue Object: The new value of the attribute, if changeType==Assign. Or the value to be inserted/removed if changeType==PutElement/RemoveElement on set. Or the new map pair value to be inserted if changeType==PutElement on map. Or the new value to be inserted/added if changeType==PutElement on array/deque. Or the new value to be assigned to the given position if changeType==AssignElement on array/deque.
keyValue Object: The map pair key to be inserted/removed if changeType==PutElement/RemoveElement on map. The index to be removed/written to if changeType==RemoveElement/AssignElement on array/deque.

Reference

IGraph Interface

de.unika.ipd.grGen.libGr Namespace