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"); 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]>
