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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;

/**
 * Key which can be used to access {@link Attribute} out of the {@link AttributeMap}. Be aware that it is not be
 * possible to have multiple keys with the same name.
 *
 * @param    the type of the {@link Attribute} which can be accessed via this {@link AttributeKey}.
 */
@SuppressWarnings("UnusedDeclaration") // 'T' is used only at compile time
public final class AttributeKey extends AbstractConstant> {

    private static final ConstantPool> pool = new ConstantPool>() {
        @Override
        protected AttributeKey newConstant(int id, String name) {
            return new AttributeKey(id, name);
        }
    };

    /**
     * Returns the singleton instance of the {@link AttributeKey} which has the specified {@code name}.
     */
    @SuppressWarnings("unchecked")
    public static  AttributeKey valueOf(String name) {
        return (AttributeKey) pool.valueOf(name);
    }

    /**
     * Returns {@code true} if a {@link AttributeKey} exists for the given {@code name}.
     */
    public static boolean exists(String name) {
        return pool.exists(name);
    }

    /**
     * Creates a new {@link AttributeKey} for the given {@code name} or fail with an
     * {@link IllegalArgumentException} if a {@link AttributeKey} for the given {@code name} exists.
     */
    @SuppressWarnings("unchecked")
    public static  AttributeKey newInstance(String name) {
        return (AttributeKey) pool.newInstance(name);
    }

    @SuppressWarnings("unchecked")
    public static  AttributeKey valueOf(Class firstNameComponent, String secondNameComponent) {
        return (AttributeKey) pool.valueOf(firstNameComponent, secondNameComponent);
    }

    private AttributeKey(int id, String name) {
        super(id, name);
    }
}
    

    

    

            

    

            



    
    






    
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