entriesByKeyPrefix method
Iterates through TTMultiMap as MapEntry
objects such
that only keys prefixed by keyMapping(
prefix
)
are included.
If keyMapping(
prefix
)
is empty then returns empty Iterable.
Each MapEntry
contains a key and its associated values.
See keysByPrefix for more information on result ordering,
near neighbour search (maxPrefixEditDistance
) etc.
Throws ArgumentError if prefix
is empty or null.
Implementation
@override
TTIterable<MapEntry<String, List<V>>> entriesByKeyPrefix(String prefix,
{int maxPrefixEditDistance = 0}) {
final key = _mapKey(prefix);
final root = _root;
return (identical(root, null) || key.isEmpty)
? TTIterable<MapEntry<String, List<V>>>.empty()
: InOrderMapEntryIterableList<V>(root, _version,
prefixSearchResult:
root.getClosestPrefixDescendant(key.runes.toList()),
maxPrefixEditDistance: maxPrefixEditDistance);
}