@Override
public StorageResults fetch(Expression userQuery) {
Expression expression = userQuery.normalize();
Matcher matcher = expression.accept(new MatcherCreator());
List<DataRecord> matchRecords = new LinkedList<DataRecord>();
for (DataRecord dataRecord : storage) {
if (matcher.match(dataRecord)) {
matchRecords.add(dataRecord);
}
}
List<DataRecord> filteredRecords = expression.accept(new Filter(matchRecords));
return new InMemoryStorageResults(filteredRecords);
}
