| /* |
| * Copyright 2000-2014 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.vcs.log.graph.impl.facade.bek; |
| |
| import com.intellij.util.containers.MultiMap; |
| import org.jetbrains.annotations.NotNull; |
| |
| class BekEdgeRestrictions { |
| @NotNull |
| private final MultiMap<Integer, Integer> myUpToEdge = new MultiMap<Integer, Integer>(); |
| |
| @NotNull |
| private final MultiMap<Integer, Integer> myDownToEdge = new MultiMap<Integer, Integer>(); |
| |
| void addRestriction(int upNode, int downNode) { |
| myUpToEdge.putValue(upNode, downNode); |
| myDownToEdge.putValue(downNode, upNode); |
| } |
| |
| void removeRestriction(int downNode) { |
| for (int upNode: myDownToEdge.get(downNode)) { |
| myUpToEdge.remove(upNode, downNode); |
| } |
| } |
| |
| boolean hasRestriction(int upNode) { |
| return myUpToEdge.containsKey(upNode); |
| } |
| |
| } |