1.9.3. RESTful アプリケーションの「プッシュ」型 MVC の使用

@Name("entryAction")
@Scope(STATELESS)
public class EntryAction
{
    @In Blog blog;
  
    @Out BlogEntry blogEntry;
  
    public void loadBlogEntry(String id) throws EntryNotFoundException {
        blogEntry = blog.getBlogEntry(id);
        if (blogEntry==null) throw new EntryNotFoundException(id);
    }
   
}

<pages>
  ...

  <page view-id="/entry.xhtml"> 
    <rewrite pattern="/entry/{blogEntryId}" />
    <rewrite pattern="/entry" />
    
    <param name="blogEntryId" 
           value="#{blogEntry.id}"/>
    
    <action execute="#{entryAction.loadBlogEntry(blogEntry.id)}"/>
  </page>
  
  <page view-id="/post.xhtml" login-required="true">
    <rewrite pattern="/post" />
    
    <action execute="#{postAction.post}"
            if="#{validation.succeeded}"/>
    
    <action execute="#{postAction.invalid}"
            if="#{validation.failed}"/>
    
    <navigation from-action="#{postAction.post}">
      <redirect view-id="/index.xhtml"/>
    </navigation>
  </page>

  <page view-id="*">
    <action execute="#{blog.hitCount.hit}"/>
  </page>

</pages>

<div class="blogEntry">
  <h3>#{blogEntry.title}</h3>
  <div>
    <s:formattedText value="#{blogEntry.body}"/>
  </div>
  <p>
  [Posted on&#160;
  <h:outputText value="#{blogEntry.date}">
     <f:convertDateTime timeZone="#{blog.timeZone}" locale="#{blog.locale}" type="both"/>
  </h:outputText>]
  </p>
</div>

@ApplicationException(rollback=true)
@HttpError(errorCode=HttpServletResponse.SC_NOT_FOUND)
public class EntryNotFoundException extends Exception {
    EntryNotFoundException(String id) {
        super("entry not found: " + id);
    }
}

@Name("entryAction")
@Scope(STATELESS)
public class EntryAction {
    @In(create=true) 
        private Blog blog;
  
    @In @Out
    private BlogEntry blogEntry;
  
    public void loadBlogEntry() throws EntryNotFoundException {
        blogEntry = blog.getBlogEntry( blogEntry.getId() );
        if (blogEntry==null) throw new EntryNotFoundException(id);
    }
}

<pages> 
  ... 
  <page view-id="/entry.xhtml" action="#{entryAction.loadBlogEntry}"> 
  <param name="blogEntryId" value="#{blogEntry.id}"/> 
</page> 
  ... 
</pages>