underlinetaglet.java

jdk-6u10-docs java开发宝典

/*
 * Copyright 2002 Sun Microsystems, Inc. All  Rights Reserved.
 * 
 * Redistribution and use in source and binary forms, with or
 * without modification, are permitted provided that the following
 * conditions are met:
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 *  notice, this list of conditions and the following disclaimer.
 *
 * -Redistribution in binary form must reproduce the above copyright
 *  notice, this list of conditions and the following disclaimer in
 *  the documentation and/or other materials provided with the
 *  distribution.
 * 
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 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
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 */

import com.sun.tools.doclets.Taglet;
import com.sun.javadoc.*;
import java.util.Map;

/**
 * A sample Inline Taglet representing {@underline ...}. This tag can 
 * be used in any kind of {@link com.sun.javadoc.Doc}.  
 * The text is underlined.  For example,
 * "@underline UNDERLINE ME" would be shown as: <u>UNDERLINE ME</u>.
 *
 * @author Jamie Ho
 * @since 1.4
 */

public class UnderlineTaglet implements Taglet {
    
    private static final String NAME = "underline";
    
    /**
     * Return the name of this custom tag.
     */
    public String getName() {
        return NAME;
    }
    
    /**
     * @return true since this tag can be used in a field
     *         doc comment
     */
    public boolean inField() {
        return true;
    }

    /**
     * @return true since this tag can be used in a constructor
     *         doc comment
     */
    public boolean inConstructor() {
        return true;
    }
    
    /**
     * @return true since this tag can be used in a method
     *         doc comment
     */
    public boolean inMethod() {
        return true;
    }
    
    /**
     * @return true since this tag can be used in an overview
     *         doc comment
     */
    public boolean inOverview() {
        return true;
    }

    /**
     * @return true since this tag can be used in a package
     *         doc comment
     */
    public boolean inPackage() {
        return true;
    }

    /**
     * @return true since this 
     */
    public boolean inType() {
        return true;
    }
    
    /**
     * Will return true since this is an inline tag.
     * @return true since this is an inline tag.
     */
    
    public boolean isInlineTag() {
        return true;
    }
    
    /**
     * Register this Taglet.
     * @param tagletMap  the map to register this tag to.
     */
    public static void register(Map tagletMap) {
       UnderlineTaglet tag = new UnderlineTaglet();
       Taglet t = (Taglet) tagletMap.get(tag.getName());
       if (t != null) {
           tagletMap.remove(tag.getName());
       }
       tagletMap.put(tag.getName(), tag);
    }

    /**
     * Given the <code>Tag</code> representation of this custom
     * tag, return its string representation.
     * @param tag he <code>Tag</code> representation of this custom tag.
     */
    public String toString(Tag tag) {
        return "<u>" + tag.text() + "</u>";
    }
    
    /**
     * This method should not be called since arrays of inline tags do not
     * exist.  Method {@link #tostring(Tag)} should be used to convert this
     * inline tag to a string.
     * @param tags the array of <code>Tag</code>s representing of this custom tag.
     */
    public String toString(Tag[] tags) {
        return null;
    }
}