EnsLib.InteropTools.HL7.MessageAnalyzer.Derive.Tree

Inherited description: 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.

Add the given pointer pPointerIndex to the end of the entry at pIndex

In the pIndex subtree: add the given pointer pPointerIndex after the subentry containing pAfterThisPointerIndex

In the pIndex subtree: add the given pointer pPointerIndex before the subentry containing pBeforeThisPointerIndex

Change all references to pPointerIndex to refer to pIndex instead

References in pIndex are NOT changed

Return the top-level node at the given index

This is not a method you want to call often - it searches the tree

Returns 0 if this is the root node

Throws an exception if this is not the root node and no parent is found in the tree (probably a detached node)

Return the pointer index at the given top-level index and pointer key

Create a new top-level tree entry for the given node, returning the index

Given Tree(pIndex,pPointerKey)=INDEX, where Tree(INDEX) has exactly one child TREE(INDEX,1)=CHILDINDEX

Insert Tree(pIndex,NEWPOINTERKEY)=CHILDINDEX after pPointerKey and delete Tree(pIndex,pPointerKey)