package io.netty.util;
import java.util.concurrent.atomic.AtomicLong;
public abstract class AbstractConstant<T extends AbstractConstant<T>> implements Constant<T> {
private static final AtomicLong uniqueIdGenerator = new AtomicLong();
private final int id;
private final String name;
private final long uniquifier;
protected AbstractConstant(int id, String name) {
this.id = id;
this.name = name;
this.uniquifier = uniqueIdGenerator.getAndIncrement();
}
@Override
public final String name() {
return name;
}
@Override
public final int id() {
return id;
}
@Override
public final String toString() {
return name();
}
@Override
public final int hashCode() {
return super.hashCode();
}
@Override
public final boolean equals(Object obj) {
return super.equals(obj);
}
@Override
public final int compareTo(T o) {
if (this == o) {
return 0;
}
@SuppressWarnings("UnnecessaryLocalVariable")
AbstractConstant<T> other = o;
int returnCode;
returnCode = hashCode() - other.hashCode();
if (returnCode != 0) {
return returnCode;
}
if (uniquifier < other.uniquifier) {
return -1;
}
if (uniquifier > other.uniquifier) {
return 1;
}
throw new Error("failed to compare two different constants");
}
}