org.oXML.xpath.step
Class MathExpression

java.lang.Object
  org.oXML.xpath.step.MathExpression

All Implemented Interfaces:

Expression

public class MathExpression

extends java.lang.Object

implements Expression

tbd - how compare a nodeset and boolean ??? eg test="/foo/bar < true" ??? or even - how compare two booleans? or two strings - lexicographically?? xalan gave me false on 'true <= false', 'true > false' and '"abc" <= "abc"'.

Field Summary

static int	DIVISION
static int	MINUS
static int	MODULO
static int	MULTIPLICATION
static int	PLUS

Fields inherited from interface org.oXML.xpath.Expression

OUTPUT_NS

Constructor Summary

MathExpression(Expression lhs, Expression rhs, int operation)

Method Summary

void	bind(Resolver ctxt)
Node	evaluate(RuntimeContext ctxt)
java.lang.String	getOperation()
int	operation()
java.lang.String	toString()
void	write(org.xml.sax.ContentHandler handler)

Methods inherited from class java.lang.Object

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

Field Detail

PLUS

public static final int PLUS

See Also:

Constant Field Values

MINUS

public static final int MINUS

See Also:

Constant Field Values

DIVISION

public static final int DIVISION

See Also:

Constant Field Values

MODULO

public static final int MODULO

See Also:

Constant Field Values

MULTIPLICATION

public static final int MULTIPLICATION

See Also:

Constant Field Values

Constructor Detail

MathExpression

public MathExpression(Expression lhs,
                      Expression rhs,
                      int operation)

Method Detail

bind

public void bind(Resolver ctxt)
          throws ObjectBoxException

Specified by:

bind in interface Expression

Throws:

ObjectBoxException

operation

public int operation()

getOperation

public java.lang.String getOperation()

evaluate

public Node evaluate(RuntimeContext ctxt)
              throws ObjectBoxException

Specified by:

evaluate in interface Expression

Throws:

ObjectBoxException

toString

public java.lang.String toString()

write

public void write(org.xml.sax.ContentHandler handler)
           throws org.xml.sax.SAXException

Specified by:

write in interface Expression

Throws:

org.xml.sax.SAXException