@Override
	public void setEntityReference(EntityReference entityReference) {
		if(entityReference instanceof DnaRegionReference || entityReference == null)
			super.setEntityReference(entityReference);
		else
			throw new IllegalBioPAXArgumentException("setEntityReference failed: "
					+ entityReference.getUri() + " is not a DnaRegionReference.");
	}
@ Override public void setEntityReference ( EntityReference entityReference ) { if ( entityReference instanceof DnaRegionReference || entityReference == null ) super . setEntityReference ( entityReference ) ; else throw new IllegalBioPAXArgumentException ( "setEntityReference failed: " + entityReference . getUri ( ) + " is not a DnaRegionReference." ) ; }
------------------------ INTERFACE METHODS ------------------------