|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Object net.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 |
---|
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()
|
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 FunctionCall
visitor
- an expression visitor
XPathException
- if an error is discovered during expression
rewritingpublic Expression typeCheck(ExpressionVisitor visitor, ExpressionVisitor.ContextItemType contextItemType) throws XPathException
typeCheck
in class FunctionCall
visitor
- 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 SystemFunction
visitor
- the expression visitor
XPathException
- if the arguments are incorrectpublic int computeSpecialProperties()
computeSpecialProperties
in class SystemFunction
public Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate
in class FunctionCall
visitor
- an expression visitor
public Expression copy()
copy
in class SystemFunction
public PathMap.PathMapNodeSet addToPathMap(PathMap pathMap, PathMap.PathMapNodeSet pathMapNodeSet)
addToPathMap
in class Expression
pathMap
- the PathMap to which the expression should be addedpathMapNodeSet
-
public SequenceIterator<NodeInfo> iterate(XPathContext context) throws XPathException
iterate
in class Expression
context
- supplies the context for evaluation
XPathException
- if any dynamic error occurs evaluating the
expressionpublic 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 occurspublic SequenceIterator<NodeInfo> call(SequenceIterator[] arguments, XPathContext context) throws XPathException
call
in interface CallableExpression
arguments
- the values of the arguments, supplied as SequenceIteratorscontext
- the dynamic evaluation context
XPathException
- if a dynamic error occurs during the evaluation of the expression
|
|||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |