yWorks UML Doclet 3.0_02 User's Guide
Welcome to the yWorks UML Doclet User's Guide.
Although, yDoc is designed in such a way that it allows user's to continue using all the features they know from standard javadoc, some basic knowledge about javadoc usage in general and doclet usage specifically is required to successfully use yDoc.
Detailed information on javadoc is available at
yDoc 3.0_02 requires JDK 1.5.0 or JDK 1.6.0 installed on your system.
Unzip the yDoc archive (ydoc-3.0_02-jdk1.4.zip or
ydoc-3.0_02-jdk1.5.zip respectively) into a directory of your
choice. It will create a lib/, a doc/, and a resources/
Basically you run javadoc. The only difference is, that you
tell javadoc to use the facilities provided by yDoc as a
We recommend running javadoc either using a build tool such as
(version 1.5.2 or better) or directly from commandline.
Before running javadoc from commandline, put your commandline
options into a file called "options" and run javadoc by
See yDoc Quick Start for simple examples on how to use yDoc.
For detailed documentation on the javadoc options, see the javadoc tool homepage at http://java.sun.com/j2se/javadoc/index.html.
To use the yDoc expansion the following options are especially important:
See yDoc Features for information on (custom) commandline options and on how to use the specific capabilites of yDoc.
A sample options file on a Win32 operating system could look like this:
-d <destination directory> -sourcepath <source directory> -breakiterator -generic -umlautogen -author -docletpath <YID>/lib/ydoc.jar;<YID>/resources;<some path>/myapp.jar -doclet ydoc.doclets.YStandard -filterpath <YID>/lib/ydoc.jar -filter ydoc.filters.ExcludeFilter -tagletpath <YID>/lib/ydoc.jar -tag param -tag return -tag see -ytag y.uml
This section demonstrates how to use yDoc to generate a Javadoc page of a sample class that will automatically include an UML diagram depicting that class.
The generated API pages can now be found in <ydoc_install_dir>/doc/api/examples.
Note that the generated UML diagrams are in PNG format. If you want
to generate the uml diagrams in a different format (SVG, SVGZ, SWF,
GIF, JPG) simply change the value of
The next tutorial step would be to look in <ydoc_install_dir>/doc/examples for the sample option/build files and sample Java sources which have been used in this example. Once you understand the options and tags, you are ready to use yDoc in your own project.
yDoc will generate UML diagrams, if one or more of the following commandline options are used:
All UML diagrams feature hyperlinks for the displayed packages, types, and type members, which allow direct access to the corresponding documentation.
See Custom command line options for additional details.
yDoc supports several output formats for UML diagrams,
including SVG, SWF, and PNG and will automatically
integrate the diagrams into the generated HTML API
See Configuring yDoc for details.
Alternatively, yDoc can embed predefined diagrams instead of generating them. Predefined diagrams have to be available in GraphML. GraphML is a generic graph interchange file format. Diagrams in this format can, e.g., be created using yEd, yWorks' free graph editor.
For yDoc to be able to find and read such diagrams, a diagram locator has to be specified.
The distribution comes with one predefined diagram locator. For this default locator to work successfully, predefined diagram files have to meet the following criteria:
To use this default diagram locator, you need to specify the
following two commandline options:
To create and use your own diagram locators, all you have to
do is implementing the
Documentation for the
yDoc provides a sophisticated filter framework, which lets you exclude parts of your API from documentation using customizable filter criteria.
The distribution comes with one predefined filter, which
lets you exclude classes/interfaces, fields, and/or methods
from documentation, if their documentation comment contains an
To create and use your own filters, all you have to do is
Documentation for the
By specifying the
The basic idea is to have template definitions that define taglet behaviour and taglet definitions that define scope, name, and which template to use.
For examples on how to define taglets, see the two mentioned xml files.
The following XML elements are used to define taglets:
In general, it is a good idea to use at least one '.' character in the name of custom tags to avoid potential conflicts/overrides.
The following XML elements are used to define templates:
In general, it is a good idea to use the <DT> tag for headlines and the <DD> tag for content, since all output generated by javadoc taglets appears in definition lists.
yDoc provides several custom command line options:
resources/ydoc.cfg is yDoc's main configuration file.
Following is the complete list of recognized
A style set defines the visual features of UML diagrams and is
specified in a XML file which conforms to the yDoc
style definition schema.
This product includes software developed by the Apache Software
yDoc uses FreeHEP VectorGraphics to generate SWF files. The FreeHEP VectorGraphics class library is distributed under the GNU Lesser General Public License.
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