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Home / Class Reference / ENSLIB namespace / %DeepSee.Query.node
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%DeepSee.Query.node


abstract class %DeepSee.Query.node extends
%RegisteredObject, %XML.Adaptor

Base class for DeepSee RunTime objects.

Inventory


Parameters Properties Methods Queries Indices ForeignKeys Triggers
3 2 12


Summary


Properties
parent value

Methods
%AddToSaveSet %ClassIsLatestVersion %ClassName %ConstructClone
%DispatchClassMethod %DispatchGetModified %DispatchGetProperty %DispatchMethod
%DispatchSetModified %DispatchSetMultidimProperty %DispatchSetProperty %Extends
%GetMemberProvider %GetParameter %GetType %GetValue
%IsA %IsModified %New %NormalizeObject
%ObjectModified %OriginalNamespace %PackageName %PreProcess
%PrintNode %RemoveFromSaveSet %SerializeObject %SetModified
%ToString %ValidateObject XMLDTD XMLExport
XMLExportToStream XMLExportToString XMLNew XMLSchema
XMLSchemaNamespace XMLSchemaType

Subclasses
%DeepSee.Query.constant %DeepSee.Query.flag %DeepSee.Query.group %DeepSee.Query.query
%DeepSee.Query.range

Parameters


• parameter NAMESPACE = "http://www.intersystems.com/deepsee/query";
NAMESPACE specifies the XML namespace to be used when projecting the class to XML. if NAMESPACE - "", the default namespace is used for the XML schema is used as the namespace for his class.
• parameter XMLIGNOREINVALIDATTRIBUTE = 0;
The XMLIGNOREINVALIDATTRIBUTE parameter allows the programmer to control handling of unexpected attributes in the XML input. By default (XMLIGNOREINVALIDATTRIBUTE = 1), will ignore unexpected attributes. If XMLIGNOREINVALIDATTRIBUTE is set = 0, then an unexpected attribute will be treated as an error.
• parameter XMLIGNORENULL = 1;
XMLIGNORENULL allows the programmer to override the default XML handling of empty strings for properties of type %String. By default (XMLIGNORENULL = 0), empty strings in the XML input are stored as $c(0) and $c(0) is written to XML as an empty tag. A missing tag in the XML input is always stored as "" and "" is always output to XML as no tag.

If XMLIGNORENULL is set = 1, then both missing tags in the XML and empty strings are input as "", and both "" and $c(0) are output as empty tags (i.e. <tag></tag>).

If XMLIGNORENULL is set = "inputonly", then both missing tags in the XML and empty strings are input as "". Output of "" and $c(0) are for XMLIGNORENULL = 0: $c(0) is output as an empty tag (i.e. <tag></tag>) and "" is output as no tag.

If XMLIGNORENULL = "runtime" (runtime is not case sensitive), then the behavior of XMLIGNORENULL is determined by the format parameter of XMLExport, XMLImport and %XML.Reader.OpenFile. The default behavior for XMLIGNORENULL="runtime is the same as XMLIGNORENULL=0. Adding "ignorenull" to the format argument changes the behavior to that of XMLIGNORENULL=1. "ignorenull" shoud be separated by a comma from literal/encoded part of the format. Example values for format are "", ",ignorenull", "literal,ignorenull" and "encoded,ignorenull". Note that "inputonly" is equivalent to using ,ignorenull for XMLExport and not for %XML.Reader.

Properties


• relationship parent as %DeepSee.Query.group(XMLPROJECTION="none") [ Inverse = children,Cardinality = one ];
Parent of this node.
The type of the parent depends on context.
• property value as %DeepSee.Datatype.string(MAXLEN=32000,XMLPROJECTION="attribute");
Value of this node. This is used by nodes that provide values.

Methods


• method %GetMemberProvider() as %DeepSee.Query.member
Return the member provider object associated with this node, if any.
• method %GetType() as %String
Return the type of this node.
The type can be one of the $$$dst macros.
This is implemented by subclasses.
• method %GetValue() as %String
Return the current value of this node.
This is called when a literal value is needed during query processing. This is implemented by subclasses.
• method %PreProcess(pIsSlicer As %Boolean = 0) as %Status
Execute the pre-processing logic for this node.
pIsSlicer is true if this node is part of the slicer (WHERE) clause.
• method %PrintNode(pLevel As %Integer = 0)
Diagnostic. Print value of this node to the console.
• method %ToString(Output pSC As %Status) as %String
Convert this node to its text representation.