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/*
* SPDX-FileCopyrightText: 2023 The Refinery Authors <https://refinery.tools/>
*
* SPDX-License-Identifier: EPL-2.0
*/
package tools.refinery.store.query.resultset;
import tools.refinery.store.map.Cursor;
import tools.refinery.store.query.ModelQueryAdapter;
import tools.refinery.store.query.dnf.Query;
import tools.refinery.store.query.utils.OrderStatisticTree;
import tools.refinery.store.tuple.Tuple;
import java.util.Objects;
public class OrderedResultSet<T> implements AutoCloseable, ResultSet<T> {
private final ResultSet<T> resultSet;
private final OrderStatisticTree<Tuple> tree = new OrderStatisticTree<>();
private final ResultSetListener<T> listener = (key, fromValue, toValue) -> {
var defaultValue = getCanonicalQuery().defaultValue();
if (Objects.equals(defaultValue, toValue)) {
tree.remove(key);
} else {
tree.add(key);
}
};
public OrderedResultSet(ResultSet<T> resultSet) {
this.resultSet = resultSet;
resultSet.addListener(listener);
var cursor = resultSet.getAll();
while (cursor.move()) {
tree.add(cursor.getKey());
}
}
@Override
public ModelQueryAdapter getAdapter() {
return resultSet.getAdapter();
}
@Override
public int size() {
return resultSet.size();
}
@Override
public Query<T> getCanonicalQuery() {
return resultSet.getCanonicalQuery();
}
@Override
public T get(Tuple parameters) {
return resultSet.get(parameters);
}
public Tuple getKey(int index) {
return tree.get(index);
}
@Override
public Cursor<Tuple, T> getAll() {
return resultSet.getAll();
}
@Override
public void addListener(ResultSetListener<T> listener) {
resultSet.addListener(listener);
}
@Override
public void removeListener(ResultSetListener<T> listener) {
resultSet.removeListener(listener);
}
@Override
public void close() {
resultSet.removeListener(listener);
}
}
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