Home > Class Reference > %SYS namespace > %DeepSee.Query.expression


class %DeepSee.Query.expression extends %DeepSee.Query.group

This class defines an expression within a DeepSee query.
An expression belongs to a set. Though an expression is a group, it only makes use of its first two children.


property formatString as %String (MAXLEN = 255, XMLPROJECTION = "attribute");
Format string to apply to this member.
Property methods: formatStringDisplayToLogical(), formatStringGet(), formatStringIsValid(), formatStringLogicalToDisplay(), formatStringLogicalToOdbc(), formatStringNormalize(), formatStringSet()
property isScalarFunction as %Boolean (XMLPROJECTION = "attribute") [ InitialExpression = 0 ];
Set true if this operator is a scalar function.
Property methods: isScalarFunctionDisplayToLogical(), isScalarFunctionGet(), isScalarFunctionIsValid(), isScalarFunctionLogicalToDisplay(), isScalarFunctionLogicalToXSD(), isScalarFunctionNormalize(), isScalarFunctionSet(), isScalarFunctionXSDToLogical()
property label as %DeepSee.Datatype.string (XMLPROJECTION = "attribute") [ InitialExpression = "Expression" ];
Axis label used for this expression.
Property methods: labelDisplayToLogical(), labelGet(), labelIsValid(), labelLogicalToDisplay(), labelLogicalToOdbc(), labelNormalize(), labelSet()
property operator as %DeepSee.Datatype.string (MAXLEN = 25, XMLPROJECTION = "attribute");
Logical operator that is applied to the children of this expression. This can be an operator (such as "+", or a SCALAR function, such as "SQRT").
Property methods: operatorDisplayToLogical(), operatorGet(), operatorIsValid(), operatorLogicalToDisplay(), operatorLogicalToOdbc(), operatorNormalize(), operatorSet()
property scalarArgCount as %String (XMLPROJECTION = "attribute") [ InitialExpression = 0 ];
If this operator is a scalar function, this is the number of expected arguments. This takes the form "arguments:optional arguments".
Property methods: scalarArgCountDisplayToLogical(), scalarArgCountGet(), scalarArgCountIsValid(), scalarArgCountLogicalToDisplay(), scalarArgCountLogicalToOdbc(), scalarArgCountNormalize(), scalarArgCountSet()
property solveOrder as %Integer (MINVAL = 0, XMLPROJECTION = "attribute");
Solve order to apply to this expression (applied from outer calcMember).
Property methods: solveOrderDisplayToLogical(), solveOrderGet(), solveOrderIsValid(), solveOrderLogicalToDisplay(), solveOrderNormalize(), solveOrderSet(), solveOrderXSDToLogical()


method %GetType() as %String [ Language = objectscript ]
Return the type of this node.
method %ToString(Output pSC As %Status) as %String [ Language = objectscript ]
Convert this node to its text representation.

Inherited Methods

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