JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

package javax.print.attribute.standard;

import java.net.URI;

import javax.print.attribute.Attribute;
import javax.print.attribute.PrintServiceAttribute;
import javax.print.attribute.URISyntax;

/**
 * Class {@code PrinterMoreInfo} is a printing attribute class, a {@code URI},
 * that is used to obtain more information about this specific printer. For
 * example, this could be an HTTP type {@code URI} referencing an HTML page
 * accessible to a web browser. The information obtained from this {@code URI}
 * is intended for end user consumption. Features outside the scope of the Print
 * Service API can be accessed from this {@code URI}. The information is
 * intended to be specific to this printer instance and site specific services
 * (e.g. job pricing, services offered, end user assistance).
 * <p>
 * In contrast, the
 * {@link PrinterMoreInfoManufacturer PrinterMoreInfoManufacturer} attribute is
 * used to find out more information about this general kind of printer rather
 * than this specific printer.
 * <p>
 * <b>IPP Compatibility:</b> The string form returned by {@code toString()}
 * gives the IPP uri value. The category name returned by {@code getName()}
 * gives the IPP attribute name.
 *
 * @author Alan Kaminsky
 */
public final class PrinterMoreInfo extends URISyntax
        implements PrintServiceAttribute {

    /**
     * Use serialVersionUID from JDK 1.4 for interoperability.
     */
    private static final long serialVersionUID = 4555850007675338574L;

    /**
     * Constructs a new printer more info attribute with the specified
     * {@code URI}.
     *
     * @param  uri {@code URI}
     * @throws NullPointerException if {@code uri} is {@code null}
     */
    public PrinterMoreInfo(URI uri) {
        super (uri);
    }

    /**
     * Returns whether this printer more info attribute is equivalent to the
     * passed in object. To be equivalent, all of the following conditions must
     * be true:
     * <ol type=1>
     *   <li>{@code object} is not {@code null}.
     *   <li>{@code object} is an instance of class {@code PrinterMoreInfo}.
     *   <li>This printer more info attribute's {@code URI} and {@code object}'s
     *   {@code URI} are equal.
     * </ol>
     *
     * @param  object {@code Object} to compare to
     * @return {@code true} if {@code object} is equivalent to this printer more
     *         info attribute, {@code false} otherwise
     */
    public boolean equals(Object object) {
        return (super.equals(object) &&
                object instanceof PrinterMoreInfo);
    }

    /**
     * Get the printing attribute class which is to be used as the "category"
     * for this printing attribute value.
     * <p>
     * For class {@code PrinterMoreInfo}, the category is class
     * {@code PrinterMoreInfo} itself.
     *
     * @return printing attribute class (category), an instance of class

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