public boolean next(IFocus focus) throws XQueryException {
final int attsize = elem.getAttributesCount();
for (int i = focus.getPosition(); i < attsize; i = focus.incrPosition()) {
DTMAttribute att = elem.attribute(i);
if (att != null && filterNodeTest.accepts(att)) {
focus.setContextItem(att);
focus.incrPosition();
return true;
}
}
return false;
}
@Override
public boolean next(IFocus focus) throws XQueryException {
final int nslen = elem.getNamespaceDeclCount();
for (int i = focus.getPosition(); i < nslen; i = focus.incrPosition()) {
DTMNamespace ns = elem.getNamespace(i);
if (ns != null && filterNodeTest.accepts(ns)) {
focus.setContextItem(ns);
focus.incrPosition();
return true;
}
}
return false;
}
public Sequence<? extends Item> eval(Sequence<? extends Item> contextSeq, DynamicContext dynEnv)
throws XQueryException {
if (contextSeq == null) {
throw new DynamicError("err:XPDY0002", "ContextItem is not set");
}
if (contextSeq instanceof XQNode) {
final XQNode n = (XQNode) contextSeq;
if (n.nodeKind() == NodeKind.ELEMENT) {
if (n instanceof DMElement) {
return ((DMElement) n).attribute(_nodeTest, dynEnv);
} else {
return new AttributeEmurationSequence((DTMElement) n, _nodeTest, dynEnv);
}
} else {
return NodeSequence.<XQNode>emptySequence();
}
}
final INodeSequence<XQNode> src = ProxyNodeSequence.wrap(contextSeq, dynEnv);
final IFocus<XQNode> srcItor = src.iterator();
if (srcItor.hasNext()) {
final XQNode n = srcItor.next();
if (srcItor.hasNext()) {
srcItor.closeQuietly();
reportError(
"err:XPTY0020", "Context item is expected to be a node, but was node sequence.");
}
if (n.nodeKind() == NodeKind.ELEMENT) {
srcItor.closeQuietly();
return new AttributeEmurationSequence((DTMElement) n, _nodeTest, dynEnv);
}
}
srcItor.closeQuietly();
return NodeSequence.<XQNode>emptySequence();
}