org.eclipse.modisco.jee.webapp/resources/web-app_2_2.xsd

<?xml version="1.0" encoding="UTF-8"?>
<!--
  
  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  
  Copyright 1999-2007 Sun Microsystems, Inc. All rights reserved.
  
  The contents of this file are subject to the terms of either the GNU
  General Public License Version 2 only ("GPL") or the Common Development
  and Distribution License("CDDL") (collectively, the "License").  You
  may not use this file except in compliance with the License. You can obtain
  a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
  or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
  language governing permissions and limitations under the License.
  
  When distributing the software, include this License Header Notice in each
  file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
  Sun designates this particular file as subject to the "Classpath" exception
  as provided by Sun in the GPL Version 2 section of the License file that
  accompanied this code.  If applicable, add the following below the License
  Header, with the fields enclosed by brackets [] replaced by your own
  identifying information: "Portions Copyrighted [year]
  [name of copyright owner]"
  
  Contributor(s):
  
  If you wish your version of this file to be governed by only the CDDL or
  only the GPL Version 2, indicate your decision by adding "[Contributor]
  elects to include this software in this distribution under the [CDDL or GPL
  Version 2] license."  If you don't indicate a single choice of license, a
  recipient has the option to distribute your version of this file under
  either the CDDL, the GPL Version 2 or to extend the choice of license to
  its licensees as provided above.  However, if you add GPL Version 2 code
  and therefore, elected the GPL Version 2 license, then the option applies
  only if the new code is made subject to such option by the copyright
  holder.
  
-->
<!--
  The web-app element is the root of the deployment descriptor for
  a web application
-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
  <xs:element name="web-app">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="icon"/>
        <xs:element minOccurs="0" ref="display-name"/>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element minOccurs="0" ref="distributable"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="context-param"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="servlet"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="servlet-mapping"/>
        <xs:element minOccurs="0" ref="session-config"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="mime-mapping"/>
        <xs:element minOccurs="0" ref="welcome-file-list"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="error-page"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="taglib"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="resource-ref"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="security-constraint"/>
        <xs:element minOccurs="0" ref="login-config"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="security-role"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="env-entry"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="ejb-ref"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The icon element contains a small-icon and a large-icon element
    which specify the location within the web application for a small and
    large image used to represent the web application in a GUI tool. At a
    minimum, tools must accept GIF and JPEG format images.
  -->
  <xs:element name="icon">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="small-icon"/>
        <xs:element minOccurs="0" ref="large-icon"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The small-icon element contains the location within the web
    application of a file containing a small (16x16 pixel) icon image.
  -->
  <xs:element name="small-icon">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The large-icon element contains the location within the web
    application of a file containing a large (32x32 pixel) icon image.
  -->
  <xs:element name="large-icon">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The display-name element contains a short name that is intended
    to be displayed by GUI tools
  -->
  <xs:element name="display-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The description element is used to provide descriptive text about
    the parent element.
  -->
  <xs:element name="description">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The distributable element, by its presence in a web application
    deployment descriptor, indicates that this web application is
    programmed appropriately to be deployed into a distributed servlet
    container
  -->
  <xs:element name="distributable">
    <xs:complexType>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The context-param element contains the declaration of a web
    application's servlet context initialization parameters.
  -->
  <xs:element name="context-param">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="param-name"/>
        <xs:element ref="param-value"/>
        <xs:element minOccurs="0" ref="description"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The param-name element contains the name of a parameter. -->
  <xs:element name="param-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The param-value element contains the value of a parameter. -->
  <xs:element name="param-value">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The servlet element contains the declarative data of a
    servlet. If a jsp-file is specified and the load-on-startup element is
    present, then the JSP should be precompiled and loaded.
  -->
  <xs:element name="servlet">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="icon"/>
        <xs:element ref="servlet-name"/>
        <xs:element minOccurs="0" ref="display-name"/>
        <xs:element minOccurs="0" ref="description"/>
        <xs:choice>
          <xs:element ref="servlet-class"/>
          <xs:element ref="jsp-file"/>
        </xs:choice>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="init-param"/>
        <xs:element minOccurs="0" ref="load-on-startup"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="security-role-ref"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The servlet-name element contains the canonical name of the
    servlet.
  -->
  <xs:element name="servlet-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The servlet-class element contains the fully qualified class name
    of the servlet.
  -->
  <xs:element name="servlet-class">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The jsp-file element contains the full path to a JSP file within
    the web application.
  -->
  <xs:element name="jsp-file">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The init-param element contains a name/value pair as an
    initialization param of the servlet
  -->
  <xs:element name="init-param">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="param-name"/>
        <xs:element ref="param-value"/>
        <xs:element minOccurs="0" ref="description"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The load-on-startup element indicates that this servlet should be
    loaded on the startup of the web application. The optional contents of
    these element must be a positive integer indicating the order in which
    the servlet should be loaded. Lower integers are loaded before higher
    integers. If no value is specified, or if the value specified is not a
    positive integer, the container is free to load it at any time in the
    startup sequence.
  -->
  <xs:element name="load-on-startup">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The servlet-mapping element defines a mapping between a servlet
    and a url pattern
  -->
  <xs:element name="servlet-mapping">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="servlet-name"/>
        <xs:element ref="url-pattern"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The url-pattern element contains the url pattern of the
    mapping. Must follow the rules specified in Section 10 of the Servlet
    API Specification.
  -->
  <xs:element name="url-pattern">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The session-config element defines the session parameters for
    this web application.
  -->
  <xs:element name="session-config">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="session-timeout"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The session-timeout element defines the default session timeout
    interval for all sessions created in this web application. The
    specified timeout must be expressed in a whole number of minutes.
  -->
  <xs:element name="session-timeout">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The mime-mapping element defines a mapping between an extension
    and a mime type.
  -->
  <xs:element name="mime-mapping">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="extension"/>
        <xs:element ref="mime-type"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The extension element contains a string describing an
    extension. example: "txt"
  -->
  <xs:element name="extension">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The mime-type element contains a defined mime type. example:
    "text/plain"
  -->
  <xs:element name="mime-type">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The welcome-file-list contains an ordered list of welcome files
    elements.
  -->
  <xs:element name="welcome-file-list">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="welcome-file"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The welcome-file element contains file name to use as a default
    welcome file, such as index.html
  -->
  <xs:element name="welcome-file">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The taglib element is used to describe a JSP tag library. -->
  <xs:element name="taglib">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="taglib-uri"/>
        <xs:element ref="taglib-location"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The taglib-uri element describes a URI, relative to the location
    of the web.xml document, identifying a Tag Library used in the Web
    Application.
  -->
  <xs:element name="taglib-uri">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    the taglib-location element contains the location (as a resource
    relative to the root of the web application) where to find the Tag
    Libary Description file for the tag library.
  -->
  <xs:element name="taglib-location">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The error-page element contains a mapping between an error code
    or exception type to the path of a resource in the web application
  -->
  <xs:element name="error-page">
    <xs:complexType>
      <xs:sequence>
        <xs:choice>
          <xs:element ref="error-code"/>
          <xs:element ref="exception-type"/>
        </xs:choice>
        <xs:element ref="location"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The error-code contains an HTTP error code, ex: 404 -->
  <xs:element name="error-code">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The exception type contains a fully qualified class name of a
    Java exception type.
  -->
  <xs:element name="exception-type">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The location element contains the location of the resource in the
    web application
  -->
  <xs:element name="location">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The resource-ref element contains a declaration of a Web
    Application's reference to an external resource.
  -->
  <xs:element name="resource-ref">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="res-ref-name"/>
        <xs:element ref="res-type"/>
        <xs:element ref="res-auth"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The res-ref-name element specifies the name of the resource
    factory reference name.
  -->
  <xs:element name="res-ref-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The res-type element specifies the (Java class) type of the data
    source.
  -->
  <xs:element name="res-type">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The res-auth element indicates whether the application component
    code performs resource signon programmatically or whether the
    container signs onto the resource based on the principle mapping
    information supplied by the deployer. Must be CONTAINER or SERVLET
  -->
  <xs:element name="res-auth">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The security-constraint element is used to associate security
    constraints with one or more web resource collections
  -->
  <xs:element name="security-constraint">
    <xs:complexType>
      <xs:sequence>
        <xs:element maxOccurs="unbounded" ref="web-resource-collection"/>
        <xs:element minOccurs="0" ref="auth-constraint"/>
        <xs:element minOccurs="0" ref="user-data-constraint"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The web-resource-collection element is used to identify a subset
    of the resources and HTTP methods on those resources within a web
    application to which a security constraint applies. If no HTTP methods
    are specified, then the security constraint applies to all HTTP
    methods.
  -->
  <xs:element name="web-resource-collection">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="web-resource-name"/>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="url-pattern"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="http-method"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The web-resource-name contains the name of this web resource
    collection
  -->
  <xs:element name="web-resource-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The http-method contains an HTTP method (GET | POST |...) -->
  <xs:element name="http-method">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The user-data-constraint element is used to indicate how data
    communicated between the client and container should be protected
  -->
  <xs:element name="user-data-constraint">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="transport-guarantee"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The transport-guarantee element specifies that the communication
    between client and server should be NONE, INTEGRAL, or
    CONFIDENTIAL. NONE means that the application does not require any
    transport guarantees. A value of INTEGRAL means that the application
    requires that the data sent between the client and server be sent in
    such a way that it can't be changed in transit. CONFIDENTIAL means
    that the application requires that the data be transmitted in a
    fashion that prevents other entities from observing the contents of
    the transmission. In most cases, the presence of the INTEGRAL or
    CONFIDENTIAL flag will indicate that the use of SSL is required.
  -->
  <xs:element name="transport-guarantee">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The auth-constraint element indicates the user roles that should
    be permitted access to this resource collection. The role used here
    must appear in a security-role-ref element.
  -->
  <xs:element name="auth-constraint">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element minOccurs="0" maxOccurs="unbounded" ref="role-name"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!-- The role-name element contains the name of a security role. -->
  <xs:element name="role-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The login-config element is used to configure the authentication
    method that should be used, the realm name that should be used for
    this application, and the attributes that are needed by the form login
    mechanism.
  -->
  <xs:element name="login-config">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="auth-method"/>
        <xs:element minOccurs="0" ref="realm-name"/>
        <xs:element minOccurs="0" ref="form-login-config"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The realm name element specifies the realm name to use in HTTP
    Basic authorization
  -->
  <xs:element name="realm-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The form-login-config element specifies the login and error pages
    that should be used in form based login. If form based authentication
    is not used, these elements are ignored.
  -->
  <xs:element name="form-login-config">
    <xs:complexType>
      <xs:sequence>
        <xs:element ref="form-login-page"/>
        <xs:element ref="form-error-page"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The form-login-page element defines the location in the web app
    where the page that can be used for login can be found
  -->
  <xs:element name="form-login-page">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The form-error-page element defines the location in the web app
    where the error page that is displayed when login is not successful
    can be found
  -->
  <xs:element name="form-error-page">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The auth-method element is used to configure the authentication
    mechanism for the web application. As a prerequisite to gaining access
    to any web resources which are protected by an authorization
    constraint, a user must have authenticated using the configured
    mechanism. Legal values for this element are "BASIC", "DIGEST",
    "FORM", or "CLIENT-CERT".
  -->
  <xs:element name="auth-method">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The security-role element contains the declaration of a security
    role which is used in the security-constraints placed on the web
    application.
  -->
  <xs:element name="security-role">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="role-name"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The role-name element contains the name of a role. This element
    must contain a non-empty string.
  -->
  <xs:element name="security-role-ref">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="role-name"/>
        <xs:element ref="role-link"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The role-link element is used to link a security role reference
    to a defined security role. The role-link element must contain the
    name of one of the security roles defined in the security-role
    elements.
  -->
  <xs:element name="role-link">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The env-entry element contains the declaration of an
    application's environment entry. This element is required to be
    honored on in J2EE compliant servlet containers.
  -->
  <xs:element name="env-entry">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="env-entry-name"/>
        <xs:element minOccurs="0" ref="env-entry-value"/>
        <xs:element ref="env-entry-type"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The env-entry-name contains the name of an application's
    environment entry
  -->
  <xs:element name="env-entry-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The env-entry-value element contains the value of an
    application's environment entry
  -->
  <xs:element name="env-entry-value">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The env-entry-type element contains the fully qualified Java type
    of the environment entry value that is expected by the application
    code. The following are the legal values of env-entry-type:
    java.lang.Boolean, java.lang.String, java.lang.Integer,
    java.lang.Double, java.lang.Float.
  -->
  <xs:element name="env-entry-type">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-ref element is used to declare a reference to an
    enterprise bean. 
  -->
  <xs:element name="ejb-ref">
    <xs:complexType>
      <xs:sequence>
        <xs:element minOccurs="0" ref="description"/>
        <xs:element ref="ejb-ref-name"/>
        <xs:element ref="ejb-ref-type"/>
        <xs:element ref="home"/>
        <xs:element ref="remote"/>
        <xs:element minOccurs="0" ref="ejb-link"/>
      </xs:sequence>
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-ref-name element contains the name of an EJB
    reference. This is the JNDI name that the servlet code uses to get a
    reference to the enterprise bean.
  -->
  <xs:element name="ejb-ref-name">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-ref-type element contains the expected java class type of
    the referenced EJB.
  -->
  <xs:element name="ejb-ref-type">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-home element contains the fully qualified name of the
    EJB's home interface
  -->
  <xs:element name="home">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-remote element contains the fully qualified name of the
    EJB's remote interface
  -->
  <xs:element name="remote">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
  <!--
    The ejb-link element is used in the ejb-ref element to specify
    that an EJB reference is linked to an EJB in an encompassing Java2
    Enterprise Edition (J2EE) application package. The value of the
    ejb-link element must be the ejb-name of and EJB in the J2EE
    application package.
  -->
  <xs:element name="ejb-link">
    <xs:complexType mixed="true">
      <xs:attribute name="id" type="xs:ID"/>
    </xs:complexType>
  </xs:element>
</xs:schema>
<!--
  The ID mechanism is to allow tools to easily make tool-specific
  references to the elements of the deployment descriptor. This allows
  tools that produce additional deployment information (i.e information
  beyond the standard deployment descriptor information) to store the
  non-standard information in a separate file, and easily refer from
  these tools-specific files to the information in the standard web-app
  deployment descriptor.
-->