public class SnapshotFn extends SystemFunction
Constructor and Description |
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SnapshotFn() |
Modifier and Type | Method and Description |
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Sequence |
call(XPathContext context,
Sequence[] arguments)
Evaluate the expression
|
static void |
closeAncestors(java.util.List<NodeInfo> ancestors,
Receiver bm) |
int |
getCardinality(Expression[] arguments)
Get the cardinality, given knowledge of the actual arguments
|
static ItemMappingFunction |
getMappingFunction(XPathContext context) |
java.lang.String |
getStreamerName()
Get a name that identifies the class that can be used to evaluate this function
in streaming mode, that is, supplying one item or event at a time as it is
delivered by the parser.
|
static java.util.List<NodeInfo> |
makeAncestorList(NodeInfo origin) |
static BuilderMonitor |
openAncestors(NodeInfo origin,
java.util.List<NodeInfo> ancestors,
XPathContext context) |
static SequenceIterator |
snapshotSequence(SequenceIterator nodes,
XPathContext context) |
static Item |
snapshotSingle(Item origin) |
dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCompilerName, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, importAttributes, isTrustedResultType, makeCall, makeFunction, makeFunctionCall, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, typeCheckCaller
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck
getLength, head, isStreamed, itemAt, iterate, reduce, subsequence
clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getLength, head, itemAt, reduce, subsequence
public int getCardinality(Expression[] arguments)
SystemFunction
getCardinality
in class SystemFunction
arguments
- the actual arguments suppliedpublic Sequence call(XPathContext context, Sequence[] arguments) throws XPathException
context
- the dynamic evaluation contextarguments
- the values of the arguments, supplied as SequencesXPathException
- if a dynamic error occurs during the evaluation of the expressionpublic static SequenceIterator snapshotSequence(SequenceIterator nodes, XPathContext context) throws XPathException
XPathException
public static ItemMappingFunction getMappingFunction(XPathContext context)
public static Item snapshotSingle(Item origin) throws XPathException
XPathException
public static BuilderMonitor openAncestors(NodeInfo origin, java.util.List<NodeInfo> ancestors, XPathContext context) throws XPathException
XPathException
public static void closeAncestors(java.util.List<NodeInfo> ancestors, Receiver bm) throws XPathException
XPathException
public java.lang.String getStreamerName()
SystemFunction
getStreamerName
in class SystemFunction
StreamerMap
. In non-streaming Saxon editions
(HE and PE) the method always returns null.Copyright (c) 2004-2018 Saxonica Limited. All rights reserved.