Class UnresolvedXQueryFunctionItem
- All Implemented Interfaces:
Callable
,FunctionItem
,GroundedValue
,Item
,Sequence
-
Constructor Summary
ConstructorsConstructorDescriptionUnresolvedXQueryFunctionItem
(XQueryFunction fd, SymbolicName.F functionName, UserFunctionReference ref) -
Method Summary
Modifier and TypeMethodDescriptioncall
(XPathContext context, Sequence[] args) Call the Callable.int
getArity()
Get the arity of the functionGet a description of this function for use in error messages.Get the item type of the function itemGet the name of the function, or null if it is anonymousMethods inherited from class net.sf.saxon.functions.AbstractFunction
atomize, deepEqual40, deepEquals, effectiveBooleanValue, export, getAnnotations, getOperandRoles, getUnicodeStringValue, isArray, isMap, isTrustedResultType, makeNewContext, simplify, toShortString, typeCheck
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface net.sf.saxon.om.FunctionItem
getGenre, isSequenceVariadic
Methods inherited from interface net.sf.saxon.om.GroundedValue
asIterable, concatenate, containsNode, materialize
Methods inherited from interface net.sf.saxon.om.Item
getLength, getStringValue, head, isStreamed, itemAt, iterate, reduce, subsequence
Methods inherited from interface net.sf.saxon.om.Sequence
makeRepeatable
-
Constructor Details
-
UnresolvedXQueryFunctionItem
public UnresolvedXQueryFunctionItem(XQueryFunction fd, SymbolicName.F functionName, UserFunctionReference ref)
-
-
Method Details
-
getFunctionItemType
Description copied from interface:FunctionItem
Get the item type of the function item- Returns:
- the function item's type
-
getFunctionName
Description copied from interface:FunctionItem
Get the name of the function, or null if it is anonymous- Returns:
- the function name, or null for an anonymous inline function
-
getArity
public int getArity()Description copied from interface:FunctionItem
Get the arity of the function- Returns:
- the number of arguments in the function signature
-
call
Description copied from interface:Callable
Call the Callable.- Parameters:
context
- the dynamic evaluation contextargs
- the values of the arguments, supplied as Sequences.Generally it is advisable, if calling iterate() to process a supplied sequence, to call it only once; if the value is required more than once, it should first be converted to a
GroundedValue
by calling the utility method SequenceTool.toGroundedValue().If the expected value is a single item, the item should be obtained by calling Sequence.head(): it cannot be assumed that the item will be passed as an instance of
Item
orAtomicValue
.It is the caller's responsibility to perform any type conversions required to convert arguments to the type expected by the callee. An exception is where this Callable is explicitly an argument-converting wrapper around the original Callable.
- Returns:
- the result of the evaluation, in the form of a Sequence. It is the responsibility of the callee to ensure that the type of result conforms to the expected result type.
- Throws:
XPathException
- if a dynamic error occurs during the evaluation of the expression
-
getDescription
Description copied from interface:FunctionItem
Get a description of this function for use in error messages. For named functions, the description is the function name (as a lexical QName). For others, it might be, for example, "inline function", or "partially-applied ends-with function".- Returns:
- a description of the function for use in error messages
-
getFunctionReference
-