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java.lang.Objectnet.sf.saxon.expr.ComputedExpression
net.sf.saxon.expr.FunctionCall
net.sf.saxon.functions.SystemFunction
net.sf.saxon.functions.Current
public class Current
Implement the XSLT current() function
Field Summary |
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Fields inherited from class net.sf.saxon.functions.SystemFunction |
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operation |
Fields inherited from class net.sf.saxon.expr.FunctionCall |
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argument |
Fields inherited from class net.sf.saxon.expr.ComputedExpression |
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locationId, staticProperties |
Fields inherited from interface net.sf.saxon.expr.Expression |
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EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
Constructor Summary | |
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Current()
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Method Summary | |
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int |
computeSpecialProperties()
Get the static properties of this expression (other than its type). |
Item |
evaluateItem(XPathContext c)
Evaluate in a general context |
int |
getIntrinsicDependencies()
Determine the dependencies |
Expression |
preEvaluate(StaticContext env)
preEvaluate: this method suppresses compile-time evaluation by doing nothing (because the value of the expression depends on the runtime context) |
Methods inherited from class net.sf.saxon.functions.SystemFunction |
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addContextDocumentArgument, checkArguments, computeCardinality, display, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault |
Methods inherited from class net.sf.saxon.expr.FunctionCall |
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checkArgumentCount, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, optimize, promote, setArguments, setFunctionNameCode, simplify, simplifyArguments, typeCheck |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public Current()
Method Detail |
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public int computeSpecialProperties()
computeSpecialProperties
in class SystemFunction
public Expression preEvaluate(StaticContext env)
preEvaluate
in class FunctionCall
public Item evaluateItem(XPathContext c) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
c
- The context in which the expression is to be evaluated
XPathException
- if any dynamic error occurs evaluating the
expressionpublic int getIntrinsicDependencies()
getIntrinsicDependencies
in class ComputedExpression
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