[jbossseam-issues] [JBoss JIRA] Created: (JBSEAM-957) Support transaction interceptor with JavaBeans and custom servlets

[Christian Bauer (JIRA)]

Support transaction interceptor with JavaBeans and custom servlets
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                 Key: JBSEAM-957
                 URL: http://jira.jboss.com/jira/browse/JBSEAM-957
             Project: JBoss Seam
          Issue Type: Feature Request
          Components: Core
            Reporter: Christian Bauer
            Priority: Minor


I'm using  <web:context-filter url-pattern="/files/*"/> and a custom FileServlet:

This works:

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

            String id = request.getParameter("fileId");

            NodeDAO nodeDAO = (NodeDAO) org.jboss.seam.Component.getInstance("nodeDAO");

            org.jboss.seam.wiki.core.node.File file;
            UserTransaction userTx = null;
            try {
                userTx = Transactions.getUserTransaction();
                userTx.begin();

                file = (id != null && !"".equals(id)) ? nodeDAO.findFile(Long.getLong(id)) : null;

                userTx.commit();
            } catch (Exception ex) {
                try {
                    if (userTx != null) userTx.rollback();
                } catch (Exception rbEx) {
                    rbEx.printStackTrace();
                }
                throw new RuntimeException(ex);
            }
 
This doesn't work because no JTA transaction is active when my JavaBean DAO is called (all methods there are annotated @Transactional):

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {

            String id = request.getParameter("fileId");

            NodeDAO nodeDAO = (NodeDAO) org.jboss.seam.Component.getInstance("nodeDAO");

            org.jboss.seam.wiki.core.node.File file = (id != null && !"".equals(id)) ? nodeDAO.findFile(Long.getLong(id)) : null;

The Seam (seamspace) examples use EJB components, so this probably never came up before.



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