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<h2><a NAME="JDepend"></a>JDepend</h2>

<h3>Description</h3>

<P>Invokes the <a href="http://www.clarkware.com/software/JDepend.html">JDepend</a> parser.</P>

<P>This parser &quot;traverses a set of Java source file directories and generates design quality metrics for each Java package&quot;.
It allows to &quot;automatically measure the quality of a design in terms of its extensibility, reusability, and maintainability to
effectively manage and control package dependencies.&quot;</P>

<p>Source file directories are defined by nested
<code>&lt;sourcespath&gt;</code>; Class file directories are defined
by nested <code>&lt;classesespath&gt;</code>, see <a
href="#nested">nested elements</a>.</p>

<p>Optionally, you can also set the <code>outputfile</code> name where the output is stored. By default the task writes its report to the standard output.</P>

<p> The task requires at least the JDepend 1.2 version. </p>

<h3>Parameters</h3>

<table BORDER=1 CELLSPACING=0 CELLPADDING=2 >
  <tr>
    <td VALIGN=TOP><b>Attribute</b></td>
    <td VALIGN=TOP><b>Description</b></td>
    <td ALIGN=CENTER VALIGN=TOP><b>Required</b></td>
  </tr>
  <tr>
    <td VALIGN=TOP>outputfile</td>
    <td VALIGN=TOP>The output file name. If not set, the output is printed on the standard output.</td>
    <td ALIGN=CENTER VALIGN=TOP>No</td>
  </tr>
  <tr>
    <td VALIGN=TOP>format</td>
    <td VALIGN=TOP>The format to write the output in. The default is "text", the alternative is "xml"</td>
    <td ALIGN=CENTER VALIGN=TOP>No</td>
  </tr>
  <tr>
    <td VALIGN=TOP>fork</td>
    <td VALIGN=TOP>Run the tests in a separate VM.</td>
    <td ALIGN=CENTER VALIGN=TOP>No, default is "off"</td>
  </tr>
  <tr>
    <td VALIGN=TOP>haltonerror</td>
    <td VALIGN=TOP>Stop the build process if an error occurs during the jdepend analysis.</td>
    <td ALIGN=CENTER VALIGN=TOP>No, default is "off"</td>
  </tr>
  <tr>
    <td VALIGN=TOP>timeout</td>
    <td VALIGN=TOP>Cancel the operation if it doesn't finish in the given time (measured in milliseconds). (Ignored if fork is disabled.)</td>
    <td ALIGN=CENTER VALIGN=TOP>No</td>
  </tr>
  <tr>
    <td VALIGN=TOP>jvm</td>
    <td VALIGN=TOP>The command used to invoke the Java Virtual Machine, default is 'java'. The command is resolved by java.lang.Runtime.exec(). (Ignored if fork is disabled.)</td>
    <td ALIGN=CENTER VALIGN=TOP>No, default "java"</td>
  </tr>
  <tr>
    <td VALIGN=TOP>dir</td>
    <td VALIGN=TOP>The directory to invoke the VM in. (Ignored if fork is disabled)</td>
    <td ALIGN=CENTER VALIGN=TOP>No</td>
  </tr>
  <tr>
    <td VALIGN=TOP>includeruntime</td>
    <td VALIGN=TOP>Implicitly add the classes required to run jdepend
    in forked mode. (Ignored if fork is disabled). Since ant 1.6.</td>
    <td ALIGN=CENTER VALIGN=TOP>No, default is "no".</td>
  </tr>
  <tr>
    <td VALIGN=TOP>classpathref</td>
    <td VALIGN=TOP>the classpath to use, given as reference to a PATH defined elsewhere.</td>
    <td ALIGN=CENTER VALIGN=TOP>No</td>
  </tr>
</table>

<h3><a name="nested">Nested Elements</a></h3>

<p><code>jdepend</code> supports four nested elements:
<code>&lt;classpath&gt;, &lt;classespath&gt; </code> and
<code>&lt;sourcespath&gt;</code>, that represent <a
href="../using.html#path">PATH like structures</a>, and
<code>&lt;exclude&gt;</code>.</p>

<p><code>&lt;sourcespath&gt;</code> is used to define the paths of the
source code to analyze, but it is deprecated. With version 2.5 of
JDepend, only class files are analyzed. The nested element
<code>&lt;classespath&gt;</code> replaces <code>&lt;sourcespath&gt;</code> and is used to define
the paths of compiled class code to analyze; the <code>&lt;sourcespath&gt;</code>
variable is still available in case you are using an earlier version
of JDepend.  The <code>&lt;exclude&gt;</code> element can be used to set packages
to ignore (requires JDepend 2.5 or above).</p>

<h3>Examples</h3>

<blockquote>
<pre>
&lt;jdepend classpathref="base.path"&gt;
&nbsp;&nbsp;&nbsp; &lt;classespath&gt;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;pathelement location="build"/&gt;
&nbsp;&nbsp;&nbsp; &lt;/classespath&gt;
&lt;/jdepend&gt;

</pre>
</blockquote>

<p>This invokes JDepend on the <code>build</code> directory, writing
the output on the standard output. The classpath is defined using a
classpath reference.</p>

<blockquote>
<pre>
&lt;jdepend outputfile="docs/jdepend.xml" fork="yes" format="xml"&gt;
&nbsp;&nbsp;&nbsp; &lt;sourcespath&gt;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;pathelement location="src"/&gt;
&nbsp;&nbsp;&nbsp; &lt;/sourcespath&gt;
&nbsp;&nbsp;&nbsp; &lt;classpath&gt;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;pathelement location="classes"/&gt;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;pathelement location="lib/jdepend.jar"/&gt;
&nbsp;&nbsp;&nbsp; &lt;/classpath&gt;
&lt;/jdepend&gt;
</pre>
</blockquote>

<p>This invokes JDepend in a separate VM on the <code>src</code> and
<code>testsrc</code> directories, writing the output to the
<code>&lt;docs/jdepend.xml&gt;</code> file in xml format. The
classpath is defined using nested elements. </p>

<blockquote>
<pre>
&lt;jdepend classpathref="base.path"&gt;
&nbsp;&nbsp;&nbsp; &lt;exclude name="java.*&gt;
&nbsp;&nbsp;&nbsp; &lt;exclude name="javax.*&gt;
&nbsp;&nbsp;&nbsp; &lt;classespath&gt;
&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &lt;pathelement location="build"/&gt;
&nbsp;&nbsp;&nbsp; &lt;/classespath&gt;
&lt;/jdepend&gt;
</pre>
</blockquote>

<p>This invokes JDepend with the build directory as the base for class
files to analyze, and will ignore all classes in the java.* and
javax.* packages.</p>


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