org.apache.bookkeeper.versioning.LongVersion Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.bookkeeper.versioning;
import lombok.EqualsAndHashCode;
/**
* A version object holds integer version.
*/
@EqualsAndHashCode
public class LongVersion implements Version {
protected long version;
public LongVersion(long v) {
this.version = v;
}
@Override
public Occurred compare(Version v) {
if (null == v) {
throw new NullPointerException("Version is not allowed to be null.");
}
if (v == Version.NEW) {
return Occurred.AFTER;
} else if (v == Version.ANY) {
return Occurred.CONCURRENTLY;
} else if (!(v instanceof LongVersion)) {
throw new IllegalArgumentException("Invalid version type");
}
LongVersion zv = (LongVersion) v;
int res = Long.compare(version, zv.version);
if (res == 0) {
return Occurred.CONCURRENTLY;
} else if (res < 0) {
return Occurred.BEFORE;
} else {
return Occurred.AFTER;
}
}
public long getLongVersion() {
return version;
}
public LongVersion setLongVersion(long v) {
this.version = v;
return this;
}
@Override
public String toString() {
return Long.toString(version, 10);
}
}