Examples of org.g4studio.core.mvc.xstruts.action.ActionForm

Package org.g4studio.core.mvc.xstruts.action

Examples of org.g4studio.core.mvc.xstruts.action.ActionForm

org.g4studio.core.mvc.xstruts.action.ActionForm

An ActionForm is a JavaBean optionally associated with one or more ActionMappings. Such a bean will have had its properties initialized from the corresponding request parameters before the corresponding Action.execute method is called.

When the properties of this bean have been populated, but before the execute method of the Action is called, this bean's validate method will be called, which gives the bean a chance to verify that the properties submitted by the user are correct and valid. If this method finds problems, it returns an error messages object that encapsulates those problems, and the controller servlet will return control to the corresponding input form. Otherwise, the validate method returns null, indicating that everything is acceptable and the corresponding Action.execute method should be called.

This class must be subclassed in order to be instantiated. Subclasses should provide property getter and setter methods for all of the bean properties they wish to expose, plus override any of the public or protected methods for which they wish to provide modified functionality.

Because ActionForms are JavaBeans, subclasses should also implement Serializable, as required by the JavaBean specification. Some containers require that an object meet all JavaBean requirements in order to use the introspection API upon which ActionForms rely.
@version $Rev: 421119 $ $Date: 2005-11-12 08:14:24 -0500 (Sat, 12 Nov 2005) $

      obj = getDynaActionFormClass().newInstance();
    } else {
      obj = formBeanClass().newInstance();
    }


    ActionForm form = null;


    if (obj instanceof ActionForm) {
      form = (ActionForm) obj;
    } else {
      form = new BeanValidatorForm(obj);
    }


    form.setServlet(servlet);


    if (form instanceof DynaBean && ((DynaBean) form).getDynaClass() instanceof MutableDynaClass) {
      DynaBean dynaBean = (DynaBean) form;
      MutableDynaClass dynaClass = (MutableDynaClass) dynaBean.getDynaClass();

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   */
  public ActionForm findOrCreateActionForm(String formName, String scopeName, ModuleConfig moduleConfig)
      throws IllegalAccessException, InstantiationException {
    Map scope = this.getScope(scopeName);


    ActionForm instance;
    FormBeanConfig formBeanConfig = moduleConfig.findFormBeanConfig(formName);


    if (formBeanConfig == null) {
      throw new IllegalArgumentException("No form config found under " + formName + " in module "
          + moduleConfig.getPrefix());
    }


    instance = (ActionForm) scope.get(formName);


    // ISSUE: Can we recycle the existing instance (if any)?
    if (instance != null) {
      getLogger().trace("Found an instance in scope " + scopeName + "; test for reusability");


      if (formBeanConfig.canReuse(instance)) {
        return instance;
      }
    }


    ActionForm form = formBeanConfig.createActionForm(this);


    // ISSUE: Should we check this call to put?
    scope.put(formName, form);


    return form;

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    if (attribute == null) {
      return (null);
    }


    // Look up the existing form bean, if any
    ActionForm instance;


    if ("request".equals(mapping.getScope())) {
      instance = (ActionForm) this.request.getAttribute(attribute);
    } else {
      instance = (ActionForm) this.session.getAttribute(attribute);

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      log.warn("No FormBeanConfig found under '" + name + "'");


      return (null);
    }


    ActionForm instance = lookupActionForm(request, attribute, mapping.getScope());


    // Can we recycle the existing form bean instance (if there is one)?
    if ((instance != null) && config.canReuse(instance)) {
      return (instance);
    }

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    if (log.isDebugEnabled()) {
      log.debug(" Looking for ActionForm bean instance in scope '" + scope + "' under attribute key '"
          + attribute + "'");
    }


    ActionForm instance = null;
    HttpSession session = null;


    if ("request".equals(scope)) {
      instance = (ActionForm) request.getAttribute(attribute);
    } else {

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  public static ActionForm createActionForm(FormBeanConfig config, ActionServlet servlet) {
    if (config == null) {
      return (null);
    }


    ActionForm instance = null;


    // Create and return a new form bean instance
    try {
      instance = config.createActionForm(servlet);

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  public boolean execute(ActionContext actionCtx) throws Exception {
    // Set form valid until found otherwise
    actionCtx.setFormValid(Boolean.TRUE);


    // Is there a form bean for this request?
    ActionForm actionForm = actionCtx.getActionForm();


    if (actionForm == null) {
      return false;
    }

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  // ------------------------------------------------------- Protected Methods
  protected ForwardConfig handle(ActionContext context, Exception exception, ExceptionConfig exceptionConfig,
      ActionConfig actionConfig, ModuleConfig moduleConfig) throws Exception {
    // Look up the remaining properties needed for this handler
    ServletActionContext sacontext = (ServletActionContext) context;
    ActionForm actionForm = (ActionForm) sacontext.getActionForm();
    HttpServletRequest request = sacontext.getRequest();
    HttpServletResponse response = sacontext.getResponse();


    // Handle this exception
    org.g4studio.core.mvc.xstruts.action.ExceptionHandler handler = (org.g4studio.core.mvc.xstruts.action.ExceptionHandler) ClassUtils

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      return (false);
    }


    Map scope = actionCtx.getScope(actionConfig.getScope());


    ActionForm instance;


    instance = (ActionForm) scope.get(actionConfig.getAttribute());


    // Can we recycle the existing instance (if any)?
    if (!formBeanConfig.canReuse(instance)) {
      instance = formBeanConfig.createActionForm(actionCtx);
    }


    // TODO: Remove ServletActionContext when ActionForm no longer
    // directly depends on ActionServlet
    if (actionCtx instanceof ServletActionContext) {
      // The servlet property of ActionForm is transient, so
      // ActionForms which are restored from a serialized state
      // need to have their servlet restored.
      ServletActionContext sac = (ServletActionContext) actionCtx;


      instance.setServlet(sac.getActionServlet());
    }


    actionCtx.setActionForm(instance);


    scope.put(actionConfig.getAttribute(), instance);

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    if (action == null) {
      return (false);
    }


    ActionConfig actionConfig = actionCtx.getActionConfig();
    ActionForm actionForm = actionCtx.getActionForm();


    // Execute the Action for this request, caching returned ActionForward
    ForwardConfig forwardConfig = execute(actionCtx, action, actionConfig, actionForm);


    actionCtx.setForwardConfig(forwardConfig);

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org.g4studio.core.mvc.xstruts.chain.commands.AbstractExecuteAction

org.g4studio.core.mvc.xstruts.chain.commands.AbstractPopulateActionForm

org.g4studio.core.mvc.xstruts.chain.commands.AbstractValidateActionForm

org.g4studio.core.mvc.xstruts.chain.commands.CreateActionForm

org.g4studio.core.mvc.xstruts.chain.commands.generic.CopyFormToContext

org.g4studio.core.mvc.xstruts.chain.commands.servlet.ExceptionHandler

org.g4studio.core.mvc.xstruts.chain.contexts.ActionContextBase

org.g4studio.core.mvc.xstruts.config.ConfigHelper

org.g4studio.core.mvc.xstruts.config.FormBeanConfig

org.g4studio.core.mvc.xstruts.util.RequestUtils

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