org.jaxen.expr
Interface FilterExpr

All Superinterfaces:

Expr, Predicated, java.io.Serializable

All Known Implementing Classes:

DefaultFilterExpr

public interface FilterExpr

extends Expr, Predicated

Represents an XPath filter expression. This is production 20 in the XPath 1.0 specification:

[20]	FilterExpr	::=	PrimaryExpr
			| FilterExpr Predicate

Method Summary

boolean	asBoolean(Context context) Evaluates the filter expression on the current context and returns true if at least one node matches.
Expr	getExpr()

Methods inherited from interface org.jaxen.expr.Expr

evaluate, getText, simplify

Methods inherited from interface org.jaxen.expr.Predicated

addPredicate, getPredicates, getPredicateSet

Method Detail

asBoolean

public boolean asBoolean(Context context)
                  throws JaxenException

Evaluates the filter expression on the current context and returns true if at least one node matches.

Returns:

true if a node matches; false if no node matches

Throws:

JaxenException

getExpr

public Expr getExpr()

Returns:

the underlying filter expression