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java.lang.Objectnet.sf.saxon.expr.Expression
net.sf.saxon.expr.FunctionCall
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.Idref
public class Idref
| Field Summary |
|---|
| Fields inherited from class net.sf.saxon.functions.SystemFunction |
|---|
operation |
| Fields inherited from class net.sf.saxon.expr.FunctionCall |
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argument |
| Fields inherited from class net.sf.saxon.expr.Expression |
|---|
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 | |
|---|---|
Idref()
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| Method Summary | |
|---|---|
PathMap.PathMapNodeSet |
addToPathMap(PathMap pathMap,
PathMap.PathMapNodeSet pathMapNodeSet)
Add a representation of a doc() call or similar function to a PathMap. |
SequenceIterator<NodeInfo> |
call(SequenceIterator[] arguments,
XPathContext context)
Evaluate the expression |
void |
checkArguments(ExpressionVisitor visitor)
Method called during static type checking |
int |
computeSpecialProperties()
Get the static properties of this expression (other than its type). |
Expression |
copy()
Copy an expression. |
static SequenceIterator<NodeInfo> |
getIdrefMultiple(DocumentInfo doc,
SequenceIterator keys,
XPathContext context)
Get the result when multiple idref values are supplied. |
SequenceIterator<NodeInfo> |
iterate(XPathContext context)
Enumerate the results of the expression |
Expression |
preEvaluate(ExpressionVisitor visitor)
preEvaluate: this method suppresses compile-time evaluation by doing nothing |
Expression |
simplify(ExpressionVisitor visitor)
Simplify: add a second implicit argument, the context document |
Expression |
typeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
Type-check the expression. |
| Methods inherited from class net.sf.saxon.functions.SystemFunction |
|---|
addContextDocumentArgument, addDocToPathMap, computeCardinality, equals, getDetails, getErrorCodeForTypeErrors, getImplementationMethod, getItemType, getOperation, getRequiredType, makeSystemFunction, optimize, setDetails, useContextItemAsDefault |
| Methods inherited from class net.sf.saxon.expr.FunctionCall |
|---|
addExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, promote, replaceSubExpression, setArguments, setFunctionName, simplifyArguments, toString |
| Methods inherited from class java.lang.Object |
|---|
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
| Methods inherited from interface net.sf.saxon.expr.CallableExpression |
|---|
getArguments |
| Constructor Detail |
|---|
public Idref()
| Method Detail |
|---|
public Expression simplify(ExpressionVisitor visitor)
throws XPathException
simplify in class FunctionCallvisitor - an expression visitor
XPathException - if an error is discovered during expression
rewriting
public Expression typeCheck(ExpressionVisitor visitor,
ExpressionVisitor.ContextItemType contextItemType)
throws XPathException
typeCheck in class FunctionCallvisitor - an expression visitorcontextItemType - the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPE
XPathException - if an error is discovered during this phase
(typically a type error)
public void checkArguments(ExpressionVisitor visitor)
throws XPathException
SystemFunction
checkArguments in class SystemFunctionvisitor - the expression visitor
XPathException - if the arguments are incorrectpublic int computeSpecialProperties()
computeSpecialProperties in class SystemFunctionpublic Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate in class FunctionCallvisitor - an expression visitor
public Expression copy()
copy in class SystemFunction
public PathMap.PathMapNodeSet addToPathMap(PathMap pathMap,
PathMap.PathMapNodeSet pathMapNodeSet)
addToPathMap in class ExpressionpathMap - the PathMap to which the expression should be addedpathMapNodeSet -
public SequenceIterator<NodeInfo> iterate(XPathContext context)
throws XPathException
iterate in class Expressioncontext - supplies the context for evaluation
XPathException - if any dynamic error occurs evaluating the
expression
public static SequenceIterator<NodeInfo> getIdrefMultiple(DocumentInfo doc,
SequenceIterator keys,
XPathContext context)
throws XPathException
doc - the document to be searchedkeys - the idref values suppliedcontext - the dynamic execution context
XPathException - if a dynamic error occurs
public SequenceIterator<NodeInfo> call(SequenceIterator[] arguments,
XPathContext context)
throws XPathException
call in interface CallableExpressionarguments - the values of the arguments, supplied as SequenceIteratorscontext - the dynamic evaluation context
XPathException - if a dynamic error occurs during the evaluation of the expression
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