InterSystems IRIS Data Platform 2020.4 > Class Reference > %SYS namespace > %DeepSee.Query.expression

%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 Inventory

Method Inventory

Properties

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()

Methods

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 Members

Inherited Properties

Inherited Methods

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