This holds the consituent elements

This holds the optional mask list

This holds the name

This holds the optional Relation

This callback method is invoked by the %New method to provide notification that a new instance of an object is being created.

If this method returns an error then the object will not be created.

It is passed the arguments provided in the %New call. When customizing this method, override the arguments with whatever variables and types you expect to receive from %New(). For example, if you're going to call %New, passing 2 arguments, %OnNew's signature could be:

Method %OnNew(dob as %Date = "", name as %Name = "") as %Status If instead of returning a %Status code this returns an oref and this oref is a subclass of the current class then this oref will be the one returned to the caller of %New method.

This method is overriden by subclasses to generate the code that this node represents

This method is override by subclases to generate the textual representation of this node

Perform a sanity check on the nodes in the parse tree