@Override
public void restore() throws TransformException {
ItemList targets = mod.nearest(NodeTarget.class).targets();
values = new ArrayList<Pair<String, Item>>(targets.size());
for (Node node : targets.nodes()) {
ItemList items = query.runOn(mod.scope(node.query()));
if (items.size() != 1)
throw new TransformException(
"sort by value query did not select exactly one item: " + items);
values.add(Pair.of(node.query().single("@xml:id").value(), items.get(0).toAtomicItem()));
}
}
@Override
void resolveOrder(Mod.Builder modBuilder, Node node) throws TransformException {
ItemList siblings = query.runOn(modBuilder.customScope(node.query().single("..").query()));
for (Node sibling : siblings.nodes()) {
if (!node.query().single(".. is $_1/..", sibling).booleanValue())
throw new TransformException("query selected non-sibling node: " + sibling);
modBuilder.reference(sibling);
}
modBuilder
.supplement()
.elem("sort-siblings")
.attr("run-length", siblings.size())
.end("sort-siblings");
}