| /* |
| * Copyright 2000-2013 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. |
| */ |
| |
| /* |
| * @author max |
| */ |
| package com.intellij.util.io; |
| |
| import org.jetbrains.annotations.NotNull; |
| |
| class PoolPageKey implements Comparable<PoolPageKey> { |
| private RandomAccessDataFile owner; |
| private long offset; |
| |
| public PoolPageKey(final RandomAccessDataFile owner, final long offset) { |
| this.owner = owner; |
| this.offset = offset; |
| } |
| |
| public int hashCode() { |
| return (int)(owner.hashCode() * 31 + offset); |
| } |
| |
| public RandomAccessDataFile getOwner() { |
| return owner; |
| } |
| |
| public long getOffset() { |
| return offset; |
| } |
| |
| @SuppressWarnings({"EqualsWhichDoesntCheckParameterClass"}) |
| public boolean equals(final Object obj) { |
| PoolPageKey k = (PoolPageKey)obj; |
| return k.owner == owner && k.offset == offset; |
| } |
| |
| public void setup(RandomAccessDataFile owner, long offset) { |
| this.owner = owner; |
| this.offset = offset; |
| } |
| |
| @Override |
| public int compareTo(@NotNull final PoolPageKey o) { |
| if (owner != o.owner) { |
| return owner.hashCode() - o.owner.hashCode(); |
| } |
| return offset == o.offset ? 0 : offset - o.offset < 0 ? -1 : 1; |
| } |
| } |