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  /*
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
   *
   * Copyright (c) 1997-2012 Oracle and/or its affiliates. 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_1_1.html
  * or packager/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 packager/legal/LICENSE.txt.
  *
  * GPL Classpath Exception:
  * Oracle designates this particular file as subject to the "Classpath"
  * exception as provided by Oracle in the GPL Version 2 section of the License
  * file that accompanied this code.
  *
  * Modifications:
  * If applicable, add the following below the License Header, with the fields
  * enclosed by brackets [] replaced by your own identifying information:
  * "Portions Copyright [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.
  */
 
 package org.glassfish.web.deployment.annotation.handlers;
 
This is an abstract class for Web annotation handler. Concrete subclass handlers need to implement the following methods: public Class<? extends Annotation> getAnnotationType(); protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo, WebComponentContext[] webCompContexts) throws AnnotationProcessorException; protected HandlerProcessingResult processAnnotation(AnnotationInfo ainfo, WebBundleContext webBundleContext) throws AnnotationProcessorException; It may also need to override the following if other annotations need to be processed prior to given annotation: public Class<? extends Annotation>[] getTypeDependencies();

Author(s):
Shing Wai Chan
 
 abstract class AbstractWebHandler extends AbstractHandler {
    
Process Annotation with given WebCompContexts.

Parameters:
ainfo
webCompContexts
Returns:
HandlerProcessingResult
 
     protected abstract HandlerProcessingResult processAnnotation(
             AnnotationInfo ainfoWebComponentContext[] webCompContexts)
             throws AnnotationProcessorException;

    
Process Annotation with given WebBundleContext.

Parameters:
ainfo
webBundleContext
Returns:
HandlerProcessingResult
 
     protected abstract HandlerProcessingResult processAnnotation(
             AnnotationInfo ainfoWebBundleContext webBundleContext)
             throws AnnotationProcessorException;

    
Process a particular annotation which type is the same as the one returned by

Parameters:
ainfo the annotation information
See also:
getAnnotationType(). All information pertinent to the annotation and its context is encapsulated in the passed AnnotationInfo instance. This is a method in interface AnnotationHandler.
 
     @Override
            throws AnnotationProcessorException {
        AnnotatedElementHandler aeHandler = ainfo.getProcessingContext().getHandler();
        if (aeHandler instanceof WebBundleContext) {
            WebBundleContext webBundleContext = (WebBundleContext)aeHandler;
            AnnotatedElementHandler aeh = webBundleContext.createContextForWeb();
            if (aeh != null) {
                aeHandler = aeh;
            }
        }
        //no inheritance
        HandlerProcessingResult procResult = null;
        if (aeHandler instanceof WebComponentContext) {
            procResult = processAnnotation(ainfo,
                new WebComponentContext[] { (WebComponentContext)aeHandler });
        } else if (aeHandler instanceof WebComponentsContext) {
            WebComponentsContext webCompsContext = (WebComponentsContext)aeHandler;
            procResult = processAnnotation(ainfowebCompsContext.getWebComponentContexts());
        } else if (aeHandler instanceof WebBundleContext) {
            WebBundleContext webBundleContext = (WebBundleContext)aeHandler;
            procResult = processAnnotation(ainfowebBundleContext);
        } else {
            return getInvalidAnnotatedElementHandlerResult(aeHandlerainfo);
        }
        return procResult;
    }
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