org.exolab.adaptx.xslt.util

Class ScopedVariableSet

java.lang.Object

org.exolab.adaptx.xslt.util.ScopedVariableSet

public final class ScopedVariableSet
extends java.lang.Object

A simple stack for VariableSets

Version:

$Revision: 3633 $ $Date: 2003-03-01 02:38:44 -0500 (Sat, 01 Mar 2003) $

Author:

Keith Visco

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SIZE The default size.

Constructor Summary

Constructors

Constructor and Description
ScopedVariableSet() Creates a new ScopedVariableSet
ScopedVariableSet(int size) Creates a new ScopedVariableSet using the givin size

Method Summary

Methods

Modifier and Type	Method and Description
void	add() adds a new VariableSet, which is then set as the current scope.
VariableSet	current() Returns the VariableSet currently in scope.
XPathResult	getVariable(java.lang.String name) Returns the value of a variable.
void	remove() Removes the current VariableSet scope.
void	setVariable(java.lang.String name, XPathResult value) Binds the XPath result to the variable name.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SIZE

public static final int DEFAULT_SIZE

The default size.

See Also:

Constant Field Values

Constructor Detail

ScopedVariableSet

public ScopedVariableSet()

Creates a new ScopedVariableSet

ScopedVariableSet

public ScopedVariableSet(int size)

Creates a new ScopedVariableSet using the givin size

Parameters:

size - the number of VariableSet objects to pre-initialize. This must be a non-negative integer.

Method Detail

current

public VariableSet current()

Returns the VariableSet currently in scope.

Returns:

the VariableSet currently in scope.

getVariable

public XPathResult getVariable(java.lang.String name)

Returns the value of a variable. Returns null if a variable with this name was not found in this variable bindings, or any parent variable binding.

Parameters:

name - The variable name

Returns:

The variable's value as an XPath result, or null

setVariable

public void setVariable(java.lang.String name,
               XPathResult value)

Binds the XPath result to the variable name. The result will be returned from subsequent call to getVariable(java.lang.String) using the same variable name.

Parameters:

name - The variable name

value - The variable's value

remove

public void remove()

Removes the current VariableSet scope.

add

public void add()

adds a new VariableSet, which is then set as the current scope.