public class GenerateId_1 extends ScalarSystemFunction
ZERO_LENGTH_STRING
Constructor and Description |
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GenerateId_1() |
Modifier and Type | Method and Description |
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AtomicValue |
evaluate(Item arg,
XPathContext context)
Abstract method that must be supplied in subclasses to perform the evaluation
|
static StringValue |
generateId(NodeInfo node) |
java.lang.String |
getCompilerName()
Get the (local) name of a class that can be used to generate bytecode for this
system function
|
int |
getSpecialProperties(Expression[] arguments)
Determine the special properties of this expression.
|
ZeroOrOne<? extends AtomicValue> |
resultWhenEmpty()
Method that may be supplied in subclasses, to indicate the result that is returned
when an empty sequence is supplied as the argument value.
|
call, makeFunctionCall
dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, 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 getSpecialProperties(Expression[] arguments)
getSpecialProperties
in class SystemFunction
arguments
- public ZeroOrOne<? extends AtomicValue> resultWhenEmpty()
ScalarSystemFunction
resultWhenEmpty
in class ScalarSystemFunction
public AtomicValue evaluate(Item arg, XPathContext context) throws XPathException
ScalarSystemFunction
evaluate
in class ScalarSystemFunction
arg
- the supplied argumentcontext
- the dynamic contextXPathException
- if a dynamic error occurspublic static StringValue generateId(NodeInfo node)
public java.lang.String getCompilerName()
SystemFunction
getCompilerName
in class SystemFunction
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