org.apache.xpath

Class Arg

public class Arg extends Object

This class holds an instance of an argument on the stack. The value of the argument can be either an XObject or a String containing an expression.

UNKNOWN: internal

Constructor Summary
	Arg() Construct a dummy parameter argument, with no QName and no value (either expression string or value XObject). isVisible defaults to true.
	Arg(QName qname, String expression, boolean isFromWithParam) Construct a parameter argument that contains an expression.
	Arg(QName qname, XObject val) Construct a parameter argument which has an XObject value. isVisible defaults to true.
	Arg(QName qname, XObject val, boolean isFromWithParam) Construct a parameter argument.

Method Summary
void	detach() Have the object release it's resources.
boolean	equals(Object obj) Equality function specialized for the variable name.
String	getExpression() Get the value expression for this argument.
QName	getQName() Get the qualified name for this argument.
XObject	getVal() Get the value for this argument.
boolean	isFromWithParam() Tell if this variable is a parameter passed with a with-param or as a top-level parameter.
boolean	isVisible() Tell if this variable is currently visible.
void	setExpression(String expr) Set the value expression for this argument.
void	setIsVisible(boolean b) Update visibility status of this variable.
void	setQName(QName name) Set the qualified name for this argument.
void	setVal(XObject val) Set the value of this argument.

Constructor Detail

Arg

public Arg()

Construct a dummy parameter argument, with no QName and no value (either expression string or value XObject). isVisible defaults to true.

Arg

public Arg(QName qname, String expression, boolean isFromWithParam)

Construct a parameter argument that contains an expression.

Parameters: qname Name of the argument, expressed as a QName object. expression String to be stored as this argument's value expression. isFromWithParam True if this is a parameter variable.

Arg

public Arg(QName qname, XObject val)

Construct a parameter argument which has an XObject value. isVisible defaults to true.

Parameters: qname Name of the argument, expressed as a QName object. val Value of the argument, expressed as an XObject

Arg

public Arg(QName qname, XObject val, boolean isFromWithParam)

Construct a parameter argument.

Parameters: qname Name of the argument, expressed as a QName object. val Value of the argument, expressed as an XObject isFromWithParam True if this is a parameter variable.