| import java.util.List; |
| import java.util.function.Function; |
| |
| class FluTr<K> { |
| |
| class Group { |
| List<Authority> getAuthorities() { |
| return null; |
| } |
| } |
| |
| class Authority { |
| String getPermission() { |
| return null; |
| } |
| } |
| |
| public void filterForPermission(final String permission) { |
| transformAndConcat(Group::getAuthorities) |
| .transform(Authority::getPermission) |
| .contains(permission); |
| } |
| |
| boolean contains(String f) { |
| return false; |
| } |
| |
| public final <T> FluTr<T> transform(Function<? super K,T> function) { return null; } |
| public <T> FluTr<T> transformAndConcat(Function<? super Group,? extends Iterable<? extends T>> function) { return null; } |
| |
| } |