<p>This is the {@link org.xml.sax.XMLReader XMLReader} from which
this filter will obtain its events and to which it will pass its
configuration requests. The parent may itself be another filter.</p>
<p>If there is no parent reader set, any attempt to parse
or to set or get a feature or property will fail.</p>
@param parent The parent XML reader.
@see #getParent
Set the parent reader.
<p>This is the {@link org.xml.sax.XMLReader XMLReader} from which this filter will obtain its events and to which it will pass its configuration requests. The parent may itself be another filter.</p>
<p>If there is no parent reader set, any attempt to parse or to set or get a feature or property will fail.</p>
@param parent The parent XML reader. @see #getParent