Package net.sf.saxon.functions
Class MathFunctionSet.PiFn
- java.lang.Object
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- net.sf.saxon.functions.AbstractFunction
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- net.sf.saxon.functions.SystemFunction
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- net.sf.saxon.functions.MathFunctionSet.PiFn
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- All Implemented Interfaces:
Callable,Function,GroundedValue,Item,Sequence
- Enclosing class:
- MathFunctionSet
public static class MathFunctionSet.PiFn extends SystemFunction
Implement math:pi
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Constructor Summary
Constructors Constructor Description PiFn()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description DoubleValuecall(XPathContext context, Sequence[] arguments)Invoke the functionExpressionmakeFunctionCall(Expression... arguments)Make an expression that either calls this function, or that is equivalent to a call on this function-
Methods inherited from class net.sf.saxon.functions.SystemFunction
dependsOnContextItem, dynamicCall, equals, export, exportAdditionalArguments, exportAttributes, fixArguments, getArity, getCardinality, getCompilerName, getContextNode, getDescription, getDetails, getErrorCodeForTypeErrors, getFunctionItemType, getFunctionName, getIntegerBounds, getNetCost, getOperandRoles, getRequiredType, getResultItemType, getResultItemType, getRetainedStaticContext, getSpecialProperties, getStaticBaseUriString, getStreamerName, importAttributes, isTrustedResultType, makeCall, makeFunction, makeOptimizedFunctionCall, resultIfEmpty, setArity, setDetails, setRetainedStaticContext, supplyTypeInformation, toShortString, toString, typeCheckCaller
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Methods inherited from class net.sf.saxon.functions.AbstractFunction
atomize, deepEquals, effectiveBooleanValue, getAnnotations, getStringValue, getStringValueCS, isArray, isMap, makeNewContext, simplify, typeCheck
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Methods inherited from class java.lang.Object
clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface net.sf.saxon.om.GroundedValue
asIterable, concatenate, containsNode, materialize
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Methods inherited from interface net.sf.saxon.om.Item
getLength, head, isStreamed, itemAt, iterate, reduce, subsequence
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Methods inherited from interface net.sf.saxon.om.Sequence
makeRepeatable
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Method Detail
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makeFunctionCall
public Expression makeFunctionCall(Expression... arguments)
Description copied from class:SystemFunctionMake an expression that either calls this function, or that is equivalent to a call on this function- Overrides:
makeFunctionCallin classSystemFunction- Parameters:
arguments- the supplied arguments to the function call- Returns:
- either a function call on this function, or an expression that delivers the same result
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call
public DoubleValue call(XPathContext context, Sequence[] arguments) throws XPathException
Description copied from interface:FunctionInvoke the function- Parameters:
context- the XPath dynamic evaluation contextarguments- the actual arguments to be supplied- Returns:
- the result of invoking the function
- Throws:
XPathException- if a dynamic error occurs within the function
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