| /* |
| * 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.openapi.vcs.history; |
| |
| public interface VcsRevisionNumber extends Comparable<VcsRevisionNumber>{ |
| VcsRevisionNumber NULL = new VcsRevisionNumber() { |
| @Override public String asString() { |
| return ""; |
| } |
| |
| @Override public int compareTo(VcsRevisionNumber vcsRevisionNumber) { |
| return 0; |
| } |
| |
| @Override public String toString() { |
| return "NULL"; |
| } |
| }; |
| |
| class Int implements VcsRevisionNumber, LongRevisionNumber { |
| private final int myValue; |
| |
| public Int(int value) { |
| myValue = value; |
| } |
| |
| @Override |
| public long getLongRevisionNumber() { |
| return myValue; |
| } |
| |
| public String asString() { |
| return String.valueOf(myValue); |
| } |
| |
| public int compareTo(VcsRevisionNumber vcsRevisionNumber) { |
| if (vcsRevisionNumber instanceof VcsRevisionNumber.Int){ |
| return myValue - ((Int)vcsRevisionNumber).myValue; |
| } |
| return 0; |
| } |
| |
| public boolean equals(final Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| final Int anInt = (Int)o; |
| |
| if (myValue != anInt.myValue) return false; |
| |
| return true; |
| } |
| |
| public int hashCode() { |
| return myValue; |
| } |
| |
| public int getValue() { |
| return myValue; |
| } |
| |
| @Override |
| public String toString() { |
| return asString(); |
| } |
| } |
| |
| class Long implements VcsRevisionNumber, LongRevisionNumber { |
| private final long myValue; |
| |
| public Long(long value) { |
| myValue = value; |
| } |
| |
| @Override |
| public long getLongRevisionNumber() { |
| return myValue; |
| } |
| |
| public String asString() { |
| return String.valueOf(myValue); |
| } |
| |
| public int compareTo(VcsRevisionNumber vcsRevisionNumber) { |
| if (vcsRevisionNumber instanceof VcsRevisionNumber.Long){ |
| return java.lang.Long.signum(myValue - ((Long)vcsRevisionNumber).myValue); |
| } |
| return 0; |
| } |
| |
| public long getLongValue() { |
| return myValue; |
| } |
| |
| public boolean equals(final Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| final Long aLong = (Long)o; |
| |
| if (myValue != aLong.myValue) return false; |
| |
| return true; |
| } |
| |
| public int hashCode() { |
| return (int)(myValue ^ (myValue >>> 32)); |
| } |
| |
| public String toString() { |
| return asString(); |
| } |
| } |
| |
| String asString(); |
| } |