HS.FHIRPath.Node

class HS.FHIRPath.Node extends %Library.RegisteredObject

This object is used during parsing and in the representation of the final parse tree. The property desriptions detail the internal usage. In the final parse tree, the valid types and values are:

type="ID": An identifier. value = The name of a variable or FHIR type
type="b" A boolean literal. value = true | false
type="s" A string literal. value = a %String value
type="n" A numeric literal. value = The %Numeric value
type="i" An invocation literal. value = ( $this | $index | $total )
type="{}" A null-object literal.
type="Expr": An operator. value = the actual operator (e.g. '+'). a special case is a function call which has value="Call" and the actual function name is in the 'functionName' property. Also, the 'isUnary' property may modify certain operators when they are being used as a unary operator.

Method Inventory

%OnNew()
Test()
asString()
fromSerial()
showNode()
showTree()
toSerial()

Properties

property children as list of Node;

Terms for operator or function call arguments

Property methods: childrenBuildValueArray(), childrenCollectionToDisplay(), childrenCollectionToOdbc(), childrenDisplayToCollection(), childrenGet(), childrenGetObject(), childrenGetObjectId(), childrenGetSwizzled(), childrenIsValid(), childrenOdbcToCollection(), childrenSet(), childrenSetObject(), childrenSetObjectId()

property context as Node;

The input context for the node (empty = global)

Property methods: contextGet(), contextGetSwizzled(), contextIsValid(), contextNewObject(), contextSet()

property isUnary as %Boolean;

Indicates a Unary Operation

Property methods: isUnaryDisplayToLogical(), isUnaryGet(), isUnaryIsValid(), isUnaryLogicalToDisplay(), isUnaryNormalize(), isUnarySet()

property literalType as %String;

Indicates the type of literal (if type="LIT")

type="b" A boolean literal with a value of true or false
type="s" A string literal.
type="n" A numeric literal.
type="o" A null-object literal.

Property methods: literalTypeDisplayToLogical(), literalTypeGet(), literalTypeIsValid(), literalTypeLogicalToDisplay(), literalTypeLogicalToOdbc(), literalTypeNormalize(), literalTypeSet()

property name as %String;

The name of an identifier, operator, or function. Or the value of a literal.

Property methods: nameDisplayToLogical(), nameGet(), nameIsValid(), nameLogicalToDisplay(), nameLogicalToOdbc(), nameNormalize(), nameSet()

property pushElement as %Boolean;

Set to true if this node is the context node of a primitive Element node. which, if present, contains the 'id' and 'extension' properties for primitive FHIR types

Property methods: pushElementDisplayToLogical(), pushElementGet(), pushElementIsValid(), pushElementLogicalToDisplay(), pushElementNormalize(), pushElementSet()

property type as %String;

The type of node

type="ID": An identifier. value = The name of a variable or FHIR type
type="OP": An identifier. value = The name of a variable or FHIR type
type="FN": An identifier. The 'name' property holds the function name. The 'context' property is a Node describing the input context for the function. The 'children' property is a list of Node's providing the arguments for the function
type="LIT": An identifier. Literal nodes hold the literal value in the 'name' property, and the literal type (boolean, string, number, object) in the 'literalType' property
type="Expr": An operator. value = the actual operator (e.g. '+').

Property methods: typeDisplayToLogical(), typeGet(), typeIsValid(), typeLogicalToDisplay(), typeLogicalToOdbc(), typeNormalize(), typeSet()

Methods

method %OnNew(type As %String, name As %String) as %Status

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.

classmethod Test(text As %String, debug=0)

method asString()

classmethod fromSerial(ser) as Node

method showNode(prefix As %String = "", recurse As %Boolean = 0)

method showTree()

method toSerial() as %List

Serialized Node tree. All elements in this chain are OR'd together in a query

HS.FHIRPath.Node

Property Inventory

Method Inventory

Properties

Methods

Inherited Members

Inherited Methods