net.sf.saxon.instruct

Class UserFunctionParameter

public class UserFunctionParameter extends Object implements Binding, Serializable

Run-time object representing a formal argument to a user-defined function

Method Summary
ValueRepresentation	evaluateVariable(XPathContext context)
int	getLocalSlotNumber() If this is a local variable held on the local stack frame, return the corresponding slot number.
int	getReferenceCount()
SequenceType	getRequiredType()
boolean	isAssignable() 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.
void	setReferenceCount(int count)
void	setRequiredType(SequenceType type)
void	setSlotNumber(int slot)

Method Detail

evaluateVariable

public ValueRepresentation evaluateVariable(XPathContext context)

getLocalSlotNumber

public int getLocalSlotNumber()

If this is a local variable held on the local stack frame, return the corresponding slot number. In other cases, return -1.

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.

isGlobal

public final 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.

setReferenceCount

public void setReferenceCount(int count)

setRequiredType

public void setRequiredType(SequenceType type)

setSlotNumber

public void setSlotNumber(int slot)