@Override
public void verify() throws TransformException {
ItemList targets = mod.nearest(NodeTarget.class).targets();
List<Node> references = mod.references();
ItemList records = mod.supplementQuery().all("sort-proxy");
assert targets.size() == references.size();
assert records.size() == references.size();
for (int i = 0; i < targets.size(); i++) {
Node target = targets.get(i).node();
Node restoredProxy = references.get(i);
ItemList items = query.runOn(mod.scope(target.query()));
if (items.size() != 1)
throw new TransformException(
"sort by corresponding node must select one node per target, but instead selected "
+ items.size()
+ ": "
+ items);
Node proxy = items.get(0).node();
if (!restoredProxy.equals(proxy)) throw new TransformException("computed proxy changed");
if (!proxy
.query()
.single(
"(count(preceding::*) + count(ancestor::*)) eq xs:integer($_1/@position)",
records.get(i))
.booleanValue()) throw new SortingException("computed proxy moved");
}
}
@Override
public void restore() throws TransformException {
List<Node> references = mod.references();
ItemList targets = mod.nearest(NodeTarget.class).targets();
proxies = new ArrayList<Pair<String, Node>>(references.size());
for (int i = 0; i < references.size(); i++) {
proxies.add(Pair.of(targets.get(i).query().single("@xml:id").value(), references.get(i)));
}
}
@Override
public void verify() throws TransformException {
for (Pair<Node, List<Node>> pair : siblingsByTarget) {
Node target = pair.first;
List<Node> storedSiblings = pair.second;
for (Node sibling : storedSiblings) {
if (!target.query().single(".. is $_1/..", sibling).booleanValue())
throw new TransformException(
"previously selected node is no longer a sibling: " + sibling);
}
List<Node> actualSiblings =
query.runOn(mod.scope(target.query().single("..").query())).nodes().asList();
if (!actualSiblings.equals(storedSiblings))
throw new TransformException(
"sibling list changed for target " + target.query().single("@xml:id").value());
// No need to check sibling order, since any change in the node's document will trigger a
// sort.
}
}