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 * CruiseControl, a Continuous Integration Toolkit
 * Copyright (c) 2001-2003, 2006, ThoughtWorks, Inc.
 * 200 E. Randolph, 25th Floor
 * Chicago, IL 60601 USA
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package net.sourceforge.cruisecontrol.gendoc.annotations;

import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;

/**
 * <p>Provides the human-readable description of a plugin or one of its attributes or children.
 * Instead of being specified at compile-time, the description will be loaded from a file at
 * runtime. The description text in the file may use HTML markup.</p>
 * 
 * <p>Applies to: Plugin class, attribute setter, or child add/create method.</p>
 * 
 * @author Seth Pollen (pollens@msoe.edu)
 */
@Retention(RetentionPolicy.RUNTIME)
@Target({ ElementType.TYPE, ElementType.METHOD })
public @interface DescriptionFile {

    /**
     * <p>The path to the file containing the description of this plugin, attribute, or child.
     * If this path begins with a slash character ("/"), it will be interpreted relative to
     * the root of the package structure containing the class using the annotation. Otherwise,
     * it will be interpreted relative to the package containing the class using the annotation.
     * Do not use backward slashes in this path.</p>
     * 
     * <p>The contents of the file must adhere to the requirements of {@link Description#value()}.</p>
     * 
     * <p>If <code>value</code> is left unspecified, a default file path will be assumed:</p>
     * <ul>
     * <li>If this annotation is applied to a class, the default path is to a file in the same
     * directory as the class with the same name as the class and a ".html" extension.</li>
     * <li>If this annotation is applied to a method, the default path is to a file in the same
     * directory as the class with the name CLASS.METHOD.html, where CLASS and METHOD are the
     * names of the class and the annotated method, respectively.</li>
     * </ul>
     * @return The path to the file containing the description of this plugin, attribute, or child. 
     */
    String value() default "";

}