public int doStartTag() throws JspException {
PNTag pnTag = (PNTag) this.getParent();
if (pnTag == null) return Tag.SKIP_BODY;
pn = pnTag.getPn();
if (pn == null || !(pn instanceof EPN)) return Tag.SKIP_BODY;
EPN epn = (EPN) pn;
int seq = Integer.parseInt(sequence);
attributeMeta = epn.getSortedAttributeMeta(seq);
if (attributeMeta == null) return Tag.SKIP_BODY;
if (!attributeMeta.hasActivated()) return Tag.SKIP_BODY;
pageContext.setAttribute("attributeTitle", attributeMeta.getAttributeTitle());
pageContext.setAttribute("attributeIndex", attributeMeta.getAttributeIndex() + "");
return EVAL_BODY_INCLUDE;
}
public AttributeValue getSelectedAttributeValue() {
return ((EPN) this.pn).getAttributeValue(attributeMeta.getAttributeIndex());
}
/**
* Constructor.
*
* @param attributeMeta the meta data of attribute
* @throws NullPointerException if the attributeMeta parameter is null
*/
public DescCriterion(AttributeMeta<?, ?> attributeMeta) throws NullPointerException {
super(attributeMeta);
sort = new Sort(attributeMeta.getName(), SortDirection.DESCENDING);
}