HierarchyChangeListener (Smooks Commons 2.1.0 API)

```
public interface HierarchyChangeListener
```
Hierarchy change listener.

Author:

tom.fennelly@gmail.com

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`attachXMLReader(XMLReader xmlReader)`	Attach a new reader to the reader hierarchy.
`void`	`detachXMLReader()`	Detach the last attached reader.

- Method Detail
  - attachXMLReader
```
void attachXMLReader(XMLReader xmlReader)
```
    Attach a new reader to the reader hierarchy.
    
    Parameters:
    
    xmlReader - The XML reader that has been attached.
  - detachXMLReader
```
void detachXMLReader()
```
    Detach the last attached reader.