001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.util.slicedmap;
018
019import org.jetbrains.annotations.NotNull;
020
021public final class SlicedMapKey<K, V> {
022
023    private final WritableSlice<K, V> slice;
024    private final K key;
025
026    public SlicedMapKey(@NotNull WritableSlice<K, V> slice, K key) {
027        this.slice = slice;
028        this.key = key;
029    }
030
031    public WritableSlice<K, V> getSlice() {
032        return slice;
033    }
034
035    public K getKey() {
036        return key;
037    }
038
039    @Override
040    public boolean equals(Object o) {
041        if (this == o) return true;
042        if (!(o instanceof SlicedMapKey)) return false;
043
044        SlicedMapKey that = (SlicedMapKey) o;
045
046        if (key != null ? !key.equals(that.key) : that.key != null) return false;
047        if (!slice.equals(that.slice)) return false;
048
049        return true;
050    }
051
052    @Override
053    public int hashCode() {
054        int result = slice.hashCode();
055        result = 31 * result + (key != null ? key.hashCode() : 0);
056        return result;
057    }
058
059    @Override
060    public String toString() {
061        return slice + " -> " + key;
062    }
063}