Factory interface to create new 
LSParser and LSSerializer
implementations. 
Java Binding:
package org.w3c.dom.ls;
public interface DOMImplementationLS {
  public static final short MODE_SYNCHRONOUS  = 1;
  public static final short MODE_ASYNCHRONOUS = 2;
  public LSParser     createLSParser(short mode, String schemaType) 
    throws DOMException;
  public LSSerializer createLSSerializer();
  public LSInput      createLSInput();
  public LSOutput     createLSOutput();
}