org.exolab.adaptx.xpath.engine
Class ErrorExpr

java.lang.Object
  |
  +--org.exolab.adaptx.xpath.engine.ErrorExpr

All Implemented Interfaces:

XPathExpression

public class ErrorExpr

extends java.lang.Object

implements XPathExpression

Simple interface for XSL Expressions

Version:

$Revision: 1.2 $ $Id: ErrorExpr.java,v 1.2 2003/05/13 07:59:08 kvisco Exp $

Author:

Keith Visco

Field Summary

Fields inherited from interface org.exolab.adaptx.xpath.XPathExpression

BOOLEAN, ERROR, FILTER_EXPR, LOCATION_PATH, NODE_TEST, NUMBER, PATH_EXPR, PRIMARY, STEP, STRING, UNION_EXPR

Method Summary

XPathResult	evaluate(XPathContext context) Evaluates the expression and returns the XPath result.
short	getExprType() Returns the type of Expr this Expr represents
java.lang.String	toString() Returns the XPath expression as a string.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Method Detail

getExprType

public short getExprType()

Returns the type of Expr this Expr represents

Specified by:

getExprType in interface XPathExpression

Returns:

the type of Expr this Expr represents

evaluate

public XPathResult evaluate(XPathContext context)
                     throws XPathException

Evaluates the expression and returns the XPath result.

Specified by:

evaluate in interface XPathExpression

Parameters:

context - The XPathContext to use during evaluation.

Returns:

The XPathResult (not null).

Throws:

XPathException - if an error occured while evaluating this expression.

toString

public java.lang.String toString()

Description copied from interface: XPathExpression

Returns the XPath expression as a string. The returned value is a valid XPath expression that can be parsed into an equivalent XPathExpression object.

Specified by:

toString in interface XPathExpression

Overrides:

toString in class java.lang.Object

Returns:

The XPath expression as a string