diff options
Diffstat (limited to 'platform/vcs-api/vcs-api-core/src/com/intellij/openapi/vcs/history/VcsRevisionNumber.java')
-rw-r--r-- | platform/vcs-api/vcs-api-core/src/com/intellij/openapi/vcs/history/VcsRevisionNumber.java | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/platform/vcs-api/vcs-api-core/src/com/intellij/openapi/vcs/history/VcsRevisionNumber.java b/platform/vcs-api/vcs-api-core/src/com/intellij/openapi/vcs/history/VcsRevisionNumber.java new file mode 100644 index 000000000000..9d5851da6889 --- /dev/null +++ b/platform/vcs-api/vcs-api-core/src/com/intellij/openapi/vcs/history/VcsRevisionNumber.java @@ -0,0 +1,129 @@ +/* + * 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(); +} |