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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up with different versions on classes on the class path).

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/*
 * Copyright 2012 The Netty Project
 *
 * The Netty Project 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:
 *
 *   https://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 io.netty.util;

import java.util.concurrent.atomic.AtomicLong;

/**
 * Base implementation of {@link Constant}.
 */
public abstract class AbstractConstant> implements Constant {

    private static final AtomicLong uniqueIdGenerator = new AtomicLong();
    private final int id;
    private final String name;
    private final long uniquifier;

    /**
     * Creates a new instance.
     */
    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 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");
    }

}