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java.lang.Objectnet.sf.saxon.expr.Expression
net.sf.saxon.expr.VariableReference
net.sf.saxon.expr.LocalVariableReference
public class LocalVariableReference
Variable reference: a reference to a local variable. This subclass of VariableReference bypasses the Binding object to get the value directly from the relevant slot in the local stackframe.
| Field Summary |
|---|
| Fields inherited from class net.sf.saxon.expr.VariableReference |
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binding, constantValue, staticType |
| Fields inherited from class net.sf.saxon.expr.Expression |
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EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, WATCH_METHOD |
| Constructor Summary | |
|---|---|
LocalVariableReference()
Create a local variable reference. |
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LocalVariableReference(Binding binding)
Create a LocalVariableReference bound to a given Binding |
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| Method Summary | |
|---|---|
Expression |
copy()
Create a clone copy of this VariableReference |
ValueRepresentation |
evaluateVariable(XPathContext c)
Return the value of the variable |
int |
getSlotNumber()
Get the slot number allocated to this local variable |
void |
setSlotNumber(int slotNumber)
Set the slot number for this local variable, that is, its position in the local stack frame |
| Methods inherited from class net.sf.saxon.expr.VariableReference |
|---|
addToPathMap, computeCardinality, computeSpecialProperties, equals, evaluateItem, explain, fixup, getBinding, getDisplayName, getImplementationMethod, getIntegerBounds, getIntrinsicDependencies, getItemType, hashCode, isFiltered, isFlattened, isInLoop, iterate, optimize, process, promote, refineVariableType, setFiltered, setFlattened, setStaticType, toString, typeCheck |
| Methods inherited from class java.lang.Object |
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clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
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public LocalVariableReference()
public LocalVariableReference(Binding binding)
binding - the binding (that is, the declaration of this local variable)| Method Detail |
|---|
public Expression copy()
copy in class VariableReferencepublic void setSlotNumber(int slotNumber)
slotNumber - the slot number to be usedpublic int getSlotNumber()
public ValueRepresentation evaluateVariable(XPathContext c)
throws XPathException
evaluateVariable in class VariableReferencec - the XPath dynamic context
XPathException - if any dynamic error occurs while evaluating the variable
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