Create a Blog with JBoss Seam, Hibernate JPA and JSF then Deploy it to Tomcat in the Cloud – Part IV

Seam Tomcat Deployment Tutorial Part 4
In this part of the tutorial we will correct the bugs inherent in version 2.2 of Seam-gen and we will add some code to spice up our blog CMS.

First of all, our PostEdit.seam page is not working at all as it is. We shall fix this:

Fixing the PostEdit.xhtml page

Figure 4.1 - Fixing the PostEdit.xhtml page

Open PostEdit.xhtml from the WebContent folder and find the <rich:tabPanel switchType=”ajax”> block. This is what’s causing the problem, because it has more than one tab – one to have the user select a category from a grid on another page, and the second one for selecting a user, since these two entites have @ManyToOne relationships to the post entity, and Seam-gen can’t handle generating more than one joined object selection user interface item in this version.

I don’t want an external grid for selection of a category anyway, so we will delete the entire <rich:tabPanel> block on this page, and instead make the category selectable from a pop-up menu using a typical JSF selectOneMenu UI component.

After you delete the <rich:tabPanel> go towards the beginning of the page and locate the code block starting with <s:decorate id=”titleField” template=”layout/edit.xhtml”>.
Within that block replace <h:inputTextarea id=”title” cols=”80″ rows=”2″ required=”true” value=”#{postHome.instance.title}”/> with <h:inputText id=”title” required=”true” value=”#{postHome.instance.title}”/>

Next, add the following code block below the closing tag (</s:decorate>) for titleField:

           <s:decorate id="categoryField" template="layout/edit.xhtml">
                <ui:define name="label">Post Category</ui:define>
                <h:selectOneMenu id="category"
                           required="true"
                              value="#{postHome.instance.title}">
                     <s:selectItems value="#{categoryList.resultList}" var="cat" label="#{cat.name}" noSelectionLabel="Please select..." />
                     <s:convertEntity />
                </h:selectOneMenu>
            </s:decorate>

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Create a Blog with JBoss Seam, Hibernate JPA and JSF then Deploy it to Tomcat in the Cloud – Part I

Tired of simple hello world tutorials or tutorials taking you only as far as user login and registration examples? Here’s an intermediate-level tutorial in which I will demonstrate how to make a blog CMS application using JBoss Seam incorporating JSF (w/Facelets), Hibernate JPA and how to deploy it to Apache Tomcat web server. With this tutorial, I also aim to provide complete and correct instructions for preparing a Seam 2.2 project to be deployed on Tomcat without errors.

JBoss Seam Project on Tomcat

The blog we’ll make in this tutorial is simple, but the tutorial itself is not.

Here’s a list of technologies and frameworks with their versions which we will use here:

  • Java EE 5 (on JRE 6)
  • JBoss Seam 2.2.2 (incorporating JSF 1.2 + Facelets, RichFaces 3.3.3 and Hibernate JPA 1.0)
  • Apache Tomcat 6.0
  • MySQL 5.1 (community edition)

And the tools we will use such as the IDE and the database GUI administartion tool:

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