Package net.sf.saxon.expr
Interface Binding
- All Known Implementing Classes:
Assign
,Assignation
,EagerLetExpression
,ForExpression
,GeneralVariable
,GlobalParam
,GlobalVariable
,JAXPVariable
,LetExpression
,LocalParam
,LocalVariable
,QuantifiedExpression
,SQLColumn.ColumnInstruction
,UserFunctionParameter
,Variable
,WithParam
public interface Binding
Binding is a interface used to represent the run-time properties and methods
associated with a variable: specifically, a method to get the value
of the variable.
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Method Summary
Modifier and TypeMethodDescriptionevaluateVariable
(XPathContext context) Evaluate the variableint
If this is a local variable held on the local stack frame, return the corresponding slot number.boolean
Test whether it is permitted to assign to the variable using the saxon:assign extension element.boolean
isGlobal()
Indicate whether the binding is local or global.
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Method Details
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evaluateVariable
Evaluate the variable- Throws:
XPathException
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isGlobal
boolean isGlobal()Indicate whether the binding is local or global. A global binding is one that has a fixed value for the life of a query or transformation; any other binding is local. -
isAssignable
boolean isAssignable()Test whether it is permitted to assign to the variable using the saxon:assign extension element. This will only be for an XSLT global variable where the extra attribute saxon:assignable="yes" is present. -
getLocalSlotNumber
int getLocalSlotNumber()If this is a local variable held on the local stack frame, return the corresponding slot number. In other cases, return -1.
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