Java^TM Architecture for XML Binding
Using SchemaGen with Ant

The jaxb-xjc.jar file contains the SchemaGenTask.class file, which allows the schema generator to be invoked from the Ant build tool. To use SchemaGenTask, include the following statement in your build.xml file:

<taskdef name="schemagen" classname="com.sun.tools.jxc.SchemaGenTask">
  <classpath>
    <fileset dir="path/to/jaxb/lib" includes="*.jar" />
  </classpath>
</taskdef>
        

This maps SchemaGenTask to an Ant task named schemagen. For detailed examples of using this task, refer to the build.xml files used by the java to schema sample applications.

Synopsis

Environment Variables

• ANT_OPTS - command-line arguments that should be passed to the JVM. For example, you can define system properties or set the maximum Java heap size here.

Parameter Attributes

schemagen supports most of the attributes defined by the javac task, plus the following parameter attributes.

xjc supports all the nested elements defined by the javac task, the following nested element parameters.

schema

Control the file name of the generated schema. This element takes a mandatory namespace attribute and a mandaotry file attribute. When this element is present, the schema document generated for the specified namespace will be placed in the specified file name.

The file name is interpreted as relative to the destdir attribute. In the absence of the destdir attribute, file names are relative to the project base directory. This element can be specified multiple times.

classpath

A path-like structure that represents the classpath. If your Java sources/classes depend on other libraries, they need to be available in the classpath.

Examples

Generate schema files from source files in the src dir and place them in the build/schemas directory.

<schemagen srcdir="src" destdir="build/schemas">
      

Compile a portion of the source tree.

<schemagen destdir="build/schemas">
  <src  path="src" />
  <exclude name="Main.java"/>
</schemagen>