Package net.sf.saxon.expr
Class ArithmeticExpression.DateDifference
- java.lang.Object
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- net.sf.saxon.expr.ComputedExpression
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- net.sf.saxon.expr.BinaryExpression
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- net.sf.saxon.expr.ArithmeticExpression
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- net.sf.saxon.expr.ArithmeticExpression.DateDifference
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- All Implemented Interfaces:
java.io.Serializable
,javax.xml.transform.SourceLocator
,Container
,Expression
,InstructionInfoProvider
- Enclosing class:
- ArithmeticExpression
public static class ArithmeticExpression.DateDifference extends ArithmeticExpression
Inner class to handle subtraction of a Date (or Time, or DateTime) from another, to return a Duration- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class net.sf.saxon.expr.ArithmeticExpression
ArithmeticExpression.DateAndDuration, ArithmeticExpression.DateDifference, ArithmeticExpression.DurationAddition, ArithmeticExpression.DurationDivision, ArithmeticExpression.DurationMultiplication, ArithmeticExpression.NumericArithmetic
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Field Summary
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Fields inherited from class net.sf.saxon.expr.BinaryExpression
operand0, operand1, operator
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Fields inherited from class net.sf.saxon.expr.ComputedExpression
locationId, staticProperties
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Fields inherited from interface net.sf.saxon.expr.Expression
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
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Constructor Summary
Constructors Constructor Description DateDifference(Expression p1, int operator, Expression p2)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static Item
doArithmetic(Expression operand0, Expression operand1, XPathContext context)
Item
evaluateItem(XPathContext context)
Evaluate the expression.-
Methods inherited from class net.sf.saxon.expr.ArithmeticExpression
getItemType, typeCheck
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Methods inherited from class net.sf.saxon.expr.BinaryExpression
computeCardinality, computeSpecialProperties, display, displayOperator, equals, getOperands, getOperator, hashCode, isAssociative, isCommutative, isInverse, iterateSubExpressions, optimize, promote, replaceSubExpression, simplify
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Methods inherited from class net.sf.saxon.expr.ComputedExpression
adoptChildExpression, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getLocationProvider, getParentExpression, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, hasBadParentPointer, iterate, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, setParentExpression, suppressValidation, typeError
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Constructor Detail
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DateDifference
public DateDifference(Expression p1, int operator, Expression p2)
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Method Detail
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evaluateItem
public Item evaluateItem(XPathContext context) throws XPathException
Evaluate the expression.- Specified by:
evaluateItem
in interfaceExpression
- Overrides:
evaluateItem
in classArithmeticExpression
- Parameters:
context
- The context in which the expression is to be evaluated- Returns:
- the node or atomic value that results from evaluating the expression; or null to indicate that the result is an empty sequence
- Throws:
XPathException
- if any dynamic error occurs evaluating the expression
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doArithmetic
public static Item doArithmetic(Expression operand0, Expression operand1, XPathContext context) throws XPathException
- Throws:
XPathException
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