/*

 * Copyright 1998-2006 Sun Microsystems, Inc.  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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package com.sun.javadoc;

import java.text.BreakIterator;

import java.util.Locale;

/**

 * Represents Java language constructs (package, class, constructor,

 * method, field) which have comments and have been processed by this

 * run of javadoc.  All Doc objects are unique, that is, they

 * are == comparable.

 *

 * @since 1.2

 * @author Robert Field

 * @author Scott Seligman (generics, enums, annotations)

 */

public interface Doc extends Comparable<Object> {

    /**

     * Return the text of the comment for this doc item.

     * Tags have been removed.

     */

    String commentText();

    /**

     * Return all tags in this Doc item.

     *

     * @return an array of {@link Tag} objects containing all tags on

     *         this Doc item.

     */

    Tag[] tags();

    /**

     * Return tags of the specified {@linkplain Tag#kind() kind} in

     * this Doc item.

     *

     * For example, if 'tagname' has value "@serial", all tags in

     * this Doc item of kind "@serial" will be returned.

     *

     * @param tagname name of the tag kind to search for.

     * @return an array of Tag containing all tags whose 'kind()'

     * matches 'tagname'.

     */

    Tag[] tags(String tagname);

    /**

     * Return the see also tags in this Doc item.

     *

     * @return an array of SeeTag containing all @see tags.

     */

    SeeTag[] seeTags();

    /**

     * Return comment as an array of tags. Includes inline tags

     * (i.e. {&#64link <i>reference</i>} tags)  but not

     * block tags.

     * Each section of plain text is represented as a {@link Tag}

     * of {@linkplain Tag#kind() kind} "Text".

     * Inline tags are represented as a {@link SeeTag} of kind "@see"

     * and name "@link".

     *

     * @return an array of {@link Tag}s representing the comment

     */

    Tag[] inlineTags();

    /**

     * Return the first sentence of the comment as an array of tags.

     * Includes inline tags

     * (i.e. {&#64link <i>reference</i>} tags)  but not

     * block tags.

     * Each section of plain text is represented as a {@link Tag}

     * of {@linkplain Tag#kind() kind} "Text".

     * Inline tags are represented as a {@link SeeTag} of kind "@see"

     * and name "@link".

     * <p>

     * If the locale is English language, the first sentence is

     * determined by the rules described in the Java Language

     * Specification (first version): "This sentence ends

     * at the first period that is followed by a blank, tab, or

     * line terminator or at the first tagline.", in

     * addition a line will be terminated by block

     * HTML tags: <p>  </p>  <h1>

     * <h2>  <h3> <h4>  <h5>  <h6>

     * <hr>  <pre>  or </pre>.

     * If the locale is not English, the sentence end will be

     * determined by

     * {@link BreakIterator#getSentenceInstance(Locale)}.

     * @return an array of {@link Tag}s representing the

     * first sentence of the comment

     */

    Tag[] firstSentenceTags();

    /**

     * Return the full unprocessed text of the comment.  Tags

     * are included as text.  Used mainly for store and retrieve

     * operations like internalization.

     */

    String getRawCommentText();

    /**

     * Set the full unprocessed text of the comment.  Tags

     * are included as text.  Used mainly for store and retrieve

     * operations like internalization.

     */

    void setRawCommentText(String rawDocumentation);

    /**

     * Returns the non-qualified name of this Doc item.

     *

     * @return  the name

     */

    String name();

    /**

     * Compares this doc object with the specified object for order.  Returns a

     * negative integer, zero, or a positive integer as this doc object is less

     * than, equal to, or greater than the given object.

     * <p>

     * This method satisfies the {@link java.lang.Comparable} interface.

     *

     * @param   obj  the <code>Object</code> to be compared.

     * @return  a negative integer, zero, or a positive integer as this Object

     *      is less than, equal to, or greater than the given Object.

     * @exception ClassCastException the specified Object's type prevents it

     *        from being compared to this Object.

     */

    int compareTo(Object obj);

    /**

     * Is this Doc item a field (but not an enum constant)?

     *

     * @return true if it represents a field

     */

    boolean isField();

    /**

     * Is this Doc item an enum constant?

     *

     * @return true if it represents an enum constant

     * @since 1.5

     */

    boolean isEnumConstant();

    /**

     * Is this Doc item a constructor?

     *

     * @return true if it represents a constructor

     */

    boolean isConstructor();

    /**

     * Is this Doc item a method (but not a constructor or annotation

     * type element)?

     *

     * @return true if it represents a method

     */

    boolean isMethod();

    /**

     * Is this Doc item an annotation type element?

     *

     * @return true if it represents an annotation type element

     * @since 1.5

     */

    boolean isAnnotationTypeElement();

    /**

     * Is this Doc item an interface (but not an annotation type)?

     *

     * @return true if it represents an interface

     */

    boolean isInterface();

    /**

     * Is this Doc item an exception class?

     *

     * @return true if it represents an exception

     */

    boolean isException();

    /**

     * Is this Doc item an error class?

     *

     * @return true if it represents a error

     */

    boolean isError();

    /**

     * Is this Doc item an enum type?

     *

     * @return true if it represents an enum type

     * @since 1.5

     */

    boolean isEnum();

    /**

     * Is this Doc item an annotation type?

     *

     * @return true if it represents an annotation type

     * @since 1.5

     */

    boolean isAnnotationType();

    /**

     * Is this Doc item an

     * <a href="{@docRoot}/com/sun/javadoc/package-summary.html#class">ordinary

     * class</a>?

     * (i.e. not an interface, annotation type, enum, exception, or error)?

     *

     * @return true if it represents an ordinary class

     */

    boolean isOrdinaryClass();

    /**

     * Is this Doc item a

     * <a href="{@docRoot}/com/sun/javadoc/package-summary.html#class">class</a>

     * (and not an interface or annotation type)?

     * This includes ordinary classes, enums, errors and exceptions.

     *

     * @return true if it represents a class

     */

    boolean isClass();

    /**

     * Return true if this Doc item is

     * <a href="{@docRoot}/com/sun/javadoc/package-summary.html#included">included</a>

     * in the result set.

     */

    boolean isIncluded();

    /**

     * Return the source position of the first line of the

     * corresponding declaration, or null if

     * no position is available.  A default constructor returns

     * null because it has no location in the source file.

     *

     * @since 1.4

     */

    SourcePosition position();

}