public class Namespace extends SimpleNodeConstructor
select
EVALUATE_METHOD, ITERATE_METHOD, locationId, PROCESS_METHOD, staticProperties
Constructor and Description |
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Namespace(Expression name)
Create an xsl:namespace instruction for dynamic construction of namespace nodes
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Modifier and Type | Method and Description |
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Expression |
copy()
Copy an expression.
|
Item |
evaluateItem(XPathContext context)
Evaluate as an expression.
|
int |
evaluateNameCode(XPathContext context)
Run-time method to compute the name of the node being constructed.
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void |
explain(ExpressionPresenter out)
Diagnostic print of expression structure.
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int |
getCardinality()
Determine the static cardinality of the expression.
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int |
getInstructionNameCode()
Set the name of this instruction for diagnostic and tracing purposes
|
ItemType |
getItemType(TypeHierarchy th)
Get the item type of the items returned by evaluating this instruction
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java.util.Iterator |
iterateSubExpressions()
Get the immediate sub-expressions of this expression.
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void |
localTypeCheck(ExpressionVisitor visitor,
ItemType contextItemType)
Method to perform type-checking specific to the kind of instruction
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TailCall |
processLeavingTail(XPathContext context)
ProcessLeavingTail: called to do the real work of this instruction.
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protected void |
promoteInst(PromotionOffer offer)
Offer promotion for subexpressions.
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boolean |
replaceSubExpression(Expression original,
Expression replacement)
Replace one subexpression by a replacement subexpression
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Expression |
simplify(ExpressionVisitor visitor)
Simplify an expression.
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checkContent, computeCardinality, computeSpecialProperties, createsNewNodes, expandChildren, getSelect, iterate, optimize, setSelect, typeCheck
assembleParams, assembleTunnelParams, dynamicError, evaluateAsString, getConstructType, getImplementationMethod, getSourceLocator, isXSLT, process, promote
addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, display, doPromotion, dynamicError, effectiveBooleanValue, evaluatePendingUpdates, explain, findParentOf, getColumnNumber, getColumnNumber, getContainer, getDependencies, getExecutable, getHostLanguage, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, implementsStaticTypeCheck, isUpdatingExpression, iterateEvents, markTailFunctionCalls, resetLocalStaticProperties, setContainer, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, toString, typeError
public Namespace(Expression name)
name
- the expression to evaluate the name of the node (that is, the prefix)public int getInstructionNameCode()
getInstructionNameCode
in class Instruction
public Expression simplify(ExpressionVisitor visitor) throws XPathException
Instruction
simplify
in class SimpleNodeConstructor
visitor
- an expression visitorXPathException
- if an error is discovered during expression
rewritingpublic ItemType getItemType(TypeHierarchy th)
Instruction
getItemType
in class Instruction
th
- the type hierarchy cachepublic int getCardinality()
Expression
getCardinality
in class Expression
protected void promoteInst(PromotionOffer offer) throws XPathException
SimpleNodeConstructor
promoteInst
in class SimpleNodeConstructor
offer
- details of the offer, for example the offer to move
expressions that don't depend on the context to an outer level in
the containing expressionXPathException
- if any error is detectedpublic void localTypeCheck(ExpressionVisitor visitor, ItemType contextItemType)
SimpleNodeConstructor
localTypeCheck
in class SimpleNodeConstructor
visitor
- an expression visitorcontextItemType
- the static type of the context itempublic java.util.Iterator iterateSubExpressions()
Expression
iterateSubExpressions
in class SimpleNodeConstructor
public Expression copy()
copy
in class Expression
public boolean replaceSubExpression(Expression original, Expression replacement)
replaceSubExpression
in class SimpleNodeConstructor
original
- the original subexpressionreplacement
- the replacement subexpressionpublic int evaluateNameCode(XPathContext context) throws XPathException
SimpleNodeConstructor
evaluateNameCode
in class SimpleNodeConstructor
context
- the XPath dynamic evaluation contextXPathException
- if any failure occurspublic TailCall processLeavingTail(XPathContext context) throws XPathException
Instruction
processLeavingTail
in interface TailCallReturner
processLeavingTail
in class Instruction
context
- The dynamic context of the transformation, giving access to the current node,
the current variables, etc.XPathException
public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in interface EvaluableItem
evaluateItem
in class SimpleNodeConstructor
context
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expressionpublic void explain(ExpressionPresenter out)
explain
in class Expression
out
- the expression presenter used to display the structure