org.jaxen.expr

Interface XPathExpr

All Superinterfaces:

Serializable

All Known Implementing Classes:

DefaultXPathExpr

public interface XPathExpr
extends Serializable

A wrapper around an XPath expression.

Method Summary

Methods

Modifier and Type	Method and Description
List	asList(Context context) Evaluates the expression and returns a list cintaing the resulting nodes, or a singleton list containing a Double, String, or Boolean.
Expr	getRootExpr() Returns the wrapped expression object.
String	getText() Returns a String containing the XPath expression.
void	setRootExpr(Expr rootExpr) Changes the wrapped expression object.
void	simplify() Simplifies the XPath expression.

Method Detail

getRootExpr

Expr getRootExpr()

Returns the wrapped expression object.

Returns:

the wrapped Expr object

setRootExpr

void setRootExpr(Expr rootExpr)

Changes the wrapped expression object.

Parameters:

rootExpr - the new expression object to wrap

getText

String getText()

Returns a String containing the XPath expression.

Returns:

the text form of this XPath expression

simplify

void simplify()

Simplifies the XPath expression. For example, the expression //para[1 = 1] could be simplified to //para. In practice, this is usually a noop. Jaxen does not currently perform any simplification.

asList

List asList(Context context)
            throws JaxenException

Evaluates the expression and returns a list cintaing the resulting nodes, or a singleton list containing a Double, String, or Boolean.

Parameters:

context - the context in which to evaluate this expression

Returns:

a list

Throws:

JaxenException