Class ContentModel
public class ContentModel
{
  // Methods
  public void save(Name ns, XMLOutputStream o) throws IOException;
  public String toString();
}
This class represents the content model definition for a given XML element. The content model is defined in the element declaration in the Document Type Definition (DTD); for example, (a,(b|c)*,d). The content model is stored in an expression tree of Node objects for use by the XML parser during validation. 
public void save(Name ns, XMLOutputStream o) throws IOException;
Saves the content model out to the specified stream. 
Return Value: 
No return value. 
| Parameter | Description | 
| ns | The current name space context. | 
| o | The output stream to write to. | 
Exceptions: 
IOException
 if there was a problem writing to the output stream. 
public String toString();
Retrieves a string representation of the content type. 
Return Value: 
Returns a String.