SignetSubjectAttr attr = getAttribute(SignetSources.SIGNET_DESC_TAG);
String descAttrName = signetSource.getParent().getPersistedSource().getSignetDescription(); SignetSubjectAttr attr = getAttribute(descAttrName);
	public void setDescription(String subjectDescription)	{		SignetSubjectAttr attr = getAttribute(SignetSources.SIGNET_DESC_TAG);		if (null == attr)		{			attr = new SignetSubjectAttr(SignetSources.SIGNET_DESC_TAG);			addAttribute(attr);		}		attr.getSourceValues().clear(); // we only want one description		attr.addSourceValue(subjectDescription);	}