com.ximpleware.extended.xpath
Class Expr

java.lang.Object
  com.ximpleware.extended.xpath.Expr

Direct Known Subclasses:

BinaryExpr, FilterExpr, FuncExpr, LiteralExpr, LocationPathExpr, NumExpr, PathExpr, UnaryExpr, UnionExpr, VariableExpr

public abstract class Expr
extends Object

This is the abstract class on which all XPath expressions are based

Constructor Summary

Expr()

Method Summary

abstract int	adjust(int n)
abstract boolean	evalBoolean(VTDNavHuge vn)
abstract int	evalNodeSet(VTDNavHuge vn)
abstract double	evalNumber(VTDNavHuge vn)
abstract String	evalString(VTDNavHuge vn)
abstract boolean	isBoolean()
abstract boolean	isNodeSet()
abstract boolean	isNumerical()
abstract boolean	isString()
abstract boolean	requireContextSize()
abstract void	reset(VTDNavHuge vn)
abstract void	setContextSize(int size)
abstract void	setPosition(int pos)
abstract String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Expr

public Expr()

Method Detail

evalBoolean

public abstract boolean evalBoolean(VTDNavHuge vn)

evalNumber

public abstract double evalNumber(VTDNavHuge vn)

evalNodeSet

public abstract int evalNodeSet(VTDNavHuge vn)
                         throws XPathEvalExceptionHuge,
                                NavExceptionHuge

Throws:

XPathEvalExceptionHuge

NavExceptionHuge

evalString

public abstract String evalString(VTDNavHuge vn)

reset

public abstract void reset(VTDNavHuge vn)

toString

public abstract String toString()

Overrides:

toString in class Object

isNumerical

public abstract boolean isNumerical()

isNodeSet

public abstract boolean isNodeSet()

isString

public abstract boolean isString()

isBoolean

public abstract boolean isBoolean()

requireContextSize

public abstract boolean requireContextSize()

setContextSize

public abstract void setContextSize(int size)

setPosition

public abstract void setPosition(int pos)

adjust

public abstract int adjust(int n)