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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright (c) 2016 Oracle and/or its affiliates. All rights reserved.
 *
 * The contents of this file are subject to the terms of either the GNU
 * General Public License Version 2 only ("GPL") or the Common Development
 * and Distribution License("CDDL") (collectively, the "License").  You
 * may not use this file except in compliance with the License.  You can
 * obtain a copy of the License at
 * https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
 * or packager/legal/LICENSE.txt.  See the License for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing the software, include this License Header Notice in each
 * file and include the License file at packager/legal/LICENSE.txt.
 *
 * GPL Classpath Exception:
 * Oracle designates this particular file as subject to the "Classpath"
 * exception as provided by Oracle in the GPL Version 2 section of the License
 * file that accompanied this code.
 *
 * Modifications:
 * If applicable, add the following below the License Header, with the fields
 * enclosed by brackets [] replaced by your own identifying information:
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 * elects to include this software in this distribution under the [CDDL or GPL
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 * either the CDDL, the GPL Version 2 or to extend the choice of license to
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 */
package org.glassfish.hk2.xml.internal;

import org.glassfish.hk2.utilities.general.GeneralUtilities;

class ReferenceKey {
    private final String type;
    private final String xmlID;
    
    ReferenceKey(String type, String xmlID) {
        this.type = type;
        this.xmlID = xmlID;
    }
    
    @Override
    public int hashCode() {
        return type.hashCode() ^ xmlID.hashCode();
    }
    
    @Override
    public boolean equals(Object o) {
        if (o == null) return false;
        if (!(o instanceof ReferenceKey)) return false;
        ReferenceKey other = (ReferenceKey) o;
        
        return GeneralUtilities.safeEquals(type, other.type) && GeneralUtilities.safeEquals(xmlID, other.xmlID);
    }
    
    @Override
    public String toString() {
        return "ReferenceKey(" + type + "," + xmlID + "," + System.identityHashCode(this) + ")";
    }
}