import com.sun.tools.internal.xjc.generator.annotation.spec.XmlRegistryWriter; //导入依赖的package包/类
public ObjectFactoryGeneratorImpl( BeanGenerator outline, Model model, JPackage targetPackage ) {
    this.outline = outline;
    this.model = model;
    this.codeModel = this.model.codeModel;
    this.classRef = codeModel.ref(Class.class);

    // create the ObjectFactory class skeleton
    objectFactory = this.outline.getClassFactory().createClass(
            targetPackage, "ObjectFactory", null );
    objectFactory.annotate2(XmlRegistryWriter.class);

    // generate the default constructor
    //
    // m1 result:
    //        public ObjectFactory() {}
    JMethod m1 = objectFactory.constructor(JMod.PUBLIC);
    m1.javadoc().append("Create a new ObjectFactory that can be used to " +
                     "create new instances of schema derived classes " +
                     "for package: " + targetPackage.name());

    // add some class javadoc
    objectFactory.javadoc().append(
        "This object contains factory methods for each \n" +
        "Java content interface and Java element interface \n" +
        "generated in the " + targetPackage.name() + " package. \n" +
        "<p>An ObjectFactory allows you to programatically \n" +
        "construct new instances of the Java representation \n" +
        "for XML content. The Java representation of XML \n" +
        "content can consist of schema derived interfaces \n" +
        "and classes representing the binding of schema \n" +
        "type definitions, element declarations and model \n" +
        "groups.  Factory methods for each of these are \n" +
        "provided in this class." );

}