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java.lang.Object
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+--net.sf.saxon.expr.ComputedExpression
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+--net.sf.saxon.expr.FunctionCall
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+--net.sf.saxon.functions.SystemFunction
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+--net.sf.saxon.functions.Doc
Implement the fn:doc() function - a simplified form of the Document function
| 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.ComputedExpression |
locationId, staticProperties |
| Fields inherited from interface net.sf.saxon.expr.Expression |
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
| Constructor Summary | |
Doc()
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| Method Summary | |
void |
checkArguments(StaticContext env)
Method called during static type checking |
Item |
evaluateItem(XPathContext context)
Evaluate an expression as a single item. |
Expression |
preEvaluate(StaticContext env)
preEvaluate: this method suppresses compile-time evaluation by doing nothing |
| Methods inherited from class net.sf.saxon.functions.SystemFunction |
addContextDocumentArgument, computeCardinality, display, getDetails, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault |
| Methods inherited from class net.sf.saxon.expr.FunctionCall |
analyze, checkArgumentCount, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, promote, setArguments, setFunctionNameCode, simplify, simplifyArguments |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public Doc()
| Method Detail |
public void checkArguments(StaticContext env)
throws XPathException
SystemFunction
checkArguments in class SystemFunctionXPathExceptionpublic Expression preEvaluate(StaticContext env)
preEvaluate in class FunctionCall
public Item evaluateItem(XPathContext context)
throws XPathException
ComputedExpression
evaluateItem in interface ExpressionevaluateItem in class ComputedExpressioncontext - The context in which the expression is to be evaluated
XPathException - if any dynamic error occurs evaluating the
expression
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