001/*
002 * PermissionsEx
003 * Copyright (C) zml and PermissionsEx contributors
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *    http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017package ca.stellardrift.permissionsex.rank;
018
019import org.checkerframework.checker.nullness.qual.Nullable;
020
021import java.util.concurrent.CompletableFuture;
022import java.util.function.Consumer;
023import java.util.function.UnaryOperator;
024import java.util.stream.Stream;
025
026public interface RankLadderCollection {
027
028    CompletableFuture<RankLadder> get(String identifier, @Nullable Consumer<RankLadder> listener);
029
030    CompletableFuture<RankLadder> update(String identifier, UnaryOperator<RankLadder> updateFunc);
031
032    CompletableFuture<Boolean> has(String identifier);
033
034    CompletableFuture<RankLadder> set(String identifier, RankLadder newData);
035
036    void addListener(String identifier, Consumer<RankLadder> listener);
037
038    Stream<String> names();
039
040}