JDK14/Java14源码在线阅读

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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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).
 *
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 * 2 along with this work; if not, write to the Free Software Foundation,
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package jdk.javadoc.internal.doclets.toolkit;

import java.util.*;

import javax.lang.model.element.PackageElement;
import javax.lang.model.element.TypeElement;
import javax.lang.model.element.VariableElement;

import jdk.javadoc.internal.doclets.toolkit.util.DocFileIOException;

/**
 * The interface for writing constants summary output.
 *
 *  <p><b>This is NOT part of any supported API.
 *  If you write code that depends on this, you do so at your own risk.
 *  This code and its internal interfaces are subject to change or
 *  deletion without notice.</b>
 */

public interface ConstantsSummaryWriter {

    /**
     * Get the header for the constant summary documentation.
     *
     * @return header that needs to be added to the documentation
     */
    public abstract Content getHeader();

    /**
     * Get the header for the constant content list.
     *
     * @return content header that needs to be added to the documentation
     */
    public abstract Content getContentsHeader();

    /**
     * Adds the given package name link to the constant content list tree.
     *
     * @param pkg                    the {@link PackageElement} to index.
     * @param writtenPackageHeaders  the set of package headers that have already
     *                               been indexed, we want to index utmost once.
     * @param contentListTree        the content tree to which the link will be added
     */
    public abstract void addLinkToPackageContent(PackageElement pkg,
            Set<PackageElement> writtenPackageHeaders, Content contentListTree);

    /**
     * Add the content list to the documentation tree.
     *
     * @param contentListTree the content that will be added to the list
     */
    public abstract void addContentsList(Content contentListTree);

    /**
     * Get the constant summaries for the document.
     *
     * @return constant summaries header to be added to the documentation tree
     */
    public abstract Content getConstantSummaries();

    /**
     * Adds the given package name.
     *
     * @param pkg  the parsed package name.  We only Write the
     *                          first 2 directory levels of the package
     *                          name. For example, java.lang.ref would be
     *                          indexed as java.lang.*.
     * @param summariesTree the summaries documentation tree
     * @param first true if the first package is listed
     *                    be written
     */
    public abstract void addPackageName(PackageElement pkg, Content summariesTree, boolean first);

    /**
     * Get the class summary header for the constants summary.
     *
     * @return the header content for the class constants summary
     */
    public abstract Content getClassConstantHeader();

    /**
     * Add the content list to the documentation summaries tree.
     *
     * @param summariesTree the tree to which the class constants list will be added
     * @param classConstantTree the class constant tree that will be added to the list
     */
    public abstract void addClassConstant(Content summariesTree, Content classConstantTree);

    /**
     * Adds the constant member table to the documentation tree.
     *
     * @param typeElement the class whose constants are being documented.
     * @param fields the constants being documented.
     * @param classConstantTree the documentation tree to which theconstant member
     *                    table content will be added
     */
    public abstract void addConstantMembers(TypeElement typeElement, Collection<VariableElement> fields,
            Content classConstantTree);

    /**
     * Add the summaries list to the content tree.
     *

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