java.io.Serializable
, javax.xml.transform.SourceLocator
, Container
, Expression
, InstructionInfoProvider
ArithmeticExpression.DateAndDuration
, ArithmeticExpression.DateDifference
, ArithmeticExpression.DurationAddition
, ArithmeticExpression.DurationDivision
, ArithmeticExpression.DurationMultiplication
, ArithmeticExpression.NumericArithmetic
public class ArithmeticExpression extends BinaryExpression
Modifier and Type | Class | Description |
---|---|---|
static class |
ArithmeticExpression.DateAndDuration |
Inner class to handle addition or subtraction of a Date (or Time, or DateTime) and a Duration
|
static class |
ArithmeticExpression.DateDifference |
Inner class to handle subtraction of a Date (or Time, or DateTime) from another, to return a Duration
|
static class |
ArithmeticExpression.DurationAddition |
Inner class to handle addition and subtraction of two durations
|
static class |
ArithmeticExpression.DurationDivision |
Inner class to handle division of two durations to give a number
|
static class |
ArithmeticExpression.DurationMultiplication |
Inner class to handle multiplication (or division) of a duration by a number
|
static class |
ArithmeticExpression.NumericArithmetic |
Inner class to handle numeric arithmetic expressions
|
operand0, operand1, operator
locationId, staticProperties
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
Constructor | Description |
---|---|
ArithmeticExpression(Expression p1,
int operator,
Expression p2) |
Modifier and Type | Method | Description |
---|---|---|
Item |
evaluateItem(XPathContext context) |
Evaluate the expression.
|
ItemType |
getItemType(TypeHierarchy th) |
Determine the data type of the expression, if this is known statically
|
Expression |
typeCheck(StaticContext env,
ItemType contextItemType) |
Type-check the expression statically.
|
computeCardinality, computeSpecialProperties, display, displayOperator, equals, getOperands, getOperator, hashCode, isAssociative, isCommutative, isInverse, iterateSubExpressions, optimize, promote, replaceSubExpression, simplify
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
public ArithmeticExpression(Expression p1, int operator, Expression p2)
public Expression typeCheck(StaticContext env, ItemType contextItemType) throws XPathException
typeCheck
in interface Expression
typeCheck
in class BinaryExpression
env
- the static context of the expressioncontextItemType
- the static type of "." at the point where this expression is invoked.
The parameter is set to null if it is known statically that the context item will be undefined.
If the type of the context item is not known statically, the argument is set to
Type.ITEM_TYPE
StaticError
- if an error is discovered during this phase
(typically a type error)XPathException
public ItemType getItemType(TypeHierarchy th)
th
- public Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in interface Expression
evaluateItem
in class ComputedExpression
context
- The context in which the expression is to be evaluatedXPathException
- if any dynamic error occurs evaluating the
expression