code: /*
   * The contents of this file are subject to the terms
   * of the Common Development and Distribution License
   * (the "License").  You may not use this file except
   * in compliance with the License.
   * 
   * You can obtain a copy of the license at
   * https://jwsdp.dev.java.net/CDDLv1.0.html
   * See the License for the specific language governing
   * permissions and limitations under the License.
   * 
   * When distributing Covered Code, include this CDDL
   * HEADER in each file and include the License file at
   * https://jwsdp.dev.java.net/CDDLv1.0.html  If applicable,
   * add the following below this CDDL HEADER, with the
   * fields enclosed by brackets "[]" replaced with your
   * own identifying information: Portions Copyright [yyyy]
   * [name of copyright owner]
   */
  package com.sun.xml.xsom;
  
  import com.sun.xml.xsom.visitor.XSContentTypeFunction;
  import com.sun.xml.xsom.visitor.XSContentTypeVisitor;
  
  /**
   * Content of a complex type.
   * 
   * @author
   *  Kohsuke Kawaguchi (kohsuke.kawaguchi@sun.com)
   */
  public interface XSContentType extends XSComponent
  {
      /**
       * Equivalent of <code>(this instanceof XSSimpleType)?this:null</code>
       */
      XSSimpleType asSimpleType();
      /**
       * Equivalent of <code>(this instanceof XSParticle)?this:null</code>
       */
      XSParticle asParticle();
      /**
       * If this content type represents the empty content, return <code>this</code>,
       * otherwise null.
       */
      XSContentType asEmpty();
  
      <T> T apply( XSContentTypeFunction<T> function );
      void visit( XSContentTypeVisitor visitor );
  }
  