XMLOutputter.NamespaceStack (core API)

java.lang.Object
- org.jdom.output.XMLOutputter.NamespaceStack

Enclosing class:

XMLOutputter
```
protected class XMLOutputter.NamespaceStack
extends Object
```
Our own null subclass of NamespaceStack. This plays a little trick with Java access protection. We want subclasses of XMLOutputter to be able to override protected methods that declare a NamespaceStack parameter, but we don't want to declare the parent NamespaceStack class as public.

Constructor Summary

Constructors
Modifier Constructor Description

protected NamespaceStack()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`getURI(String prefix)`	Given a prefix, this will return the namespace URI most rencently (topmost) associated with that prefix.
`String`	`pop()`	This will remove the topmost (most recently added) `Namespace`, and return its prefix.
`void`	`push(Namespace ns)`	This will add a new `Namespace` to those currently available.
`int`	`size()`	This returns the number of available namespaces.
`String`	`toString()`	This will print out the size and current stack, from the most recently added `Namespace` to the "oldest," all to `System.out`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - NamespaceStack
```
protected NamespaceStack()
```
- Method Detail
  - push
```
public void push(Namespace ns)
```
    This will add a new Namespace to those currently available.
    
    Parameters:
    
    ns - Namespace to add.
  - pop
```
public String pop()
```
    This will remove the topmost (most recently added) Namespace, and return its prefix.
    
    Returns:
    
    String - the popped namespace prefix.
  - size
```
public int size()
```
    This returns the number of available namespaces.
    
    Returns:
    
    int - size of the namespace stack.
  - getURI
```
public String getURI(String prefix)
```
    Given a prefix, this will return the namespace URI most rencently (topmost) associated with that prefix.
    
    Parameters:
    
    prefix - String namespace prefix.
    
    Returns:
    
    String - the namespace URI for that prefix.
  - toString
```
public String toString()
```
    This will print out the size and current stack, from the most recently added Namespace to the "oldest," all to System.out.
    
    Overrides:
    
    toString in class Object