Pedantic clarification inline Quoting "Craig R. McClanahan" <[EMAIL PROTECTED]>:
> > > On Sun, 19 Jan 2003, Mark Minnie wrote: > > > Date: Sun, 19 Jan 2003 21:04:55 -0800 > > From: Mark Minnie <[EMAIL PROTECTED]> > > Reply-To: Struts Users Mailing List <[EMAIL PROTECTED]> > > To: [EMAIL PROTECTED] > > Subject: DynaActionForm question > > > > "Struts in Action" on page 162 reads: > > > > "You can use a DynaActionForm anywhere an ActionForm can be used. You can > also substitute a DynaActionForm for a conventional ActionForm without > changing any of the existing Java or JSP code." > > > > I changed a ActionForm to a DynaActionForm by using the > struts-config.xml: > > > > <form-bean name="loginForm" > type="org.apache.struts.action.DynaActionForm" dynamic="true"> > > <form-property name="username" type="java.lang.String"/> > > <form-property name="password" type="java.lang.String"/> > > </form-bean> > > > > I thought I would not have to change my existing code in the Action java > code, but my existing code did not work. I originally had: > > > > String username = ((LoginForm)form).getUsername(); > > String password = ((LoginForm)form).getPassword(); > > > > The LoginForm was the form bean that I had created manually in java. I > deleted the LoginForm and replaced the form bean with a DynaActionForm as > listed above. Of course, once I no longer have a LoginForm.java file because > it is a DynaActionForm, this Action java code does not compile. > > > > Therefore I see that I have to change my code in going from a manually > coded form bean to a DynaActionForm. > > > > Am I missing something? > > > > I think there was an implicit assumption in the sentence you quoted, that > you were using BeanUtils or PropertyUtils to manipulate the properties. > If your code had actually been: > > String username = PropertyUtils.getProperty(form, "username"); > String password = PropertyUtils.getProperty(form, "password"); PropertyUtils.getProperty returns Object BeanUtils.getProperty returns String > > then you would indeed have had to make no changes when you swtiched from a > standard ActionForm bean to a DynaActionForm. If you're planning on > experimenting with such switching, you might want to think about coding > defensively like this. > > > TIA > > > > Mark > > Craig > > > -- > To unsubscribe, e-mail: > <mailto:[EMAIL PROTECTED]> > For additional commands, e-mail: > <mailto:[EMAIL PROTECTED]> > -- Kris Schneider <mailto:[EMAIL PROTECTED]> D.O.Tech <http://www.dotech.com/> -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
