Yes, That is generally what I'm saying... For maintainable code, look at the patterns I went into. If you are writing a very large application, they will make your application easier to debug and maintain in the future.
-----Original Message----- From: Dave Newton [mailto:[EMAIL PROTECTED] Sent: Friday, November 16, 2007 5:10 PM To: Struts Users Mailing List Subject: RE: Pass Javabeans Wow, that was a lot of code. The expurgated version is that in Struts 1 there are two basic ways to do it: put the bean into a scope, generally request or session, or set properties on your ActionForm (which itself is either request- or session-scoped). d. --- [EMAIL PROTECTED] wrote: > I would look into the following Patterns: > > BusinessDelegate , SessionFacade > > > For Database connectivity with EJBs you should also > look at > servicelocator. > > > > Typically what I do is: > > Have an action: > To retrieve data from a database -- I pass all > necessary > interface parameters to a BusinessDeleget. The > business delegate does > all of the work to prevent tier leakage. > > A BusinessDelegate will pass back a ValueObject > (JavaBean) to a > JSP Page. > > I'll save that bean in a request or session > attribute for use > within the JSP page. > > Hope this gives you some insight. > > Here is a code snippet: > > public ActionForward > findOrderDetail(ActionMapping _mapping, > ActionForm _form, HttpServletRequest _request, > HttpServletResponse > _response ) > { > UserInfo _userInfo = getUserInfo();//private > method to get > user info > String _userId = "null user"; > ActionErrors _errs = new ActionErrors(); > FindOrderDetailActionFormBean _params = > (FindOrderDetailActionFormBean) _form; > try > { > > getConsolePrinting(this.getResources(_request)); > _errs = checkActionErrors(_mapping, > _form, _request); > if(_errs.size()==0) > { > > Logger.debug( > "[MyOrdersDispatchAction.java][public > ActionForward findOrderDetail(ActionMapping > _mapping, ActionForm _form, > HttpServletRequest _request, HttpServletResponse > _response)][started > with 0 Errors Found.]"); > IOrderManagerPDA _mgr = > OrderManagerBD.getOrderManagerPDA(); > Logger.debug ( > "[MyOrdersDispatchAction.java][ public > ActionForward findOrderDetail(ActionMapping > _mapping, ActionForm _form, > HttpServletRequest _request, HttpServletResponse > _response)][IOrderManager Created And Retrieved. > Params Recovered from > FindOrderDetailActionFormBean. User Id is > {"+_userId+"} Location is > {"+_params.getLocation()+"} Order Number is { > "+_params.getOrderNumber()+" } ]"); > > //THIS IS A VALUE OBJECT BEAN THAT YOU SHOULD > CREATE IN > //YOUR BUSINESS DELEGATE AND USE IN YOUR JSP > PAGES > IOrderVOPDA orderVO = > _mgr.getOrder(_userId , > _userInfo.getregionId(), _params.getLocation(), > _userInfo.getisHybridLocation() , > _userInfo.getbillingSystem(), > _userInfo.getbillingSystemText() , > Integer.parseInt(_params.getOrderNumber()) ); > if( orderVO != null ) > { > _request.setAttribute("orderVO" , > orderVO ); > Logger.debug( > "[MyOrdersDispatchAction.java][private > ActionForward findOrderDetail(ActionMapping > _mapping, ActionForm _form, > HttpServletRequest _request, HttpServletResponse > _response)][ > Initializing Location to Location is > {"+_params.getLocation()+"} . > Returning {"+_SUCCESS+"}. User Id is {"+_userId+"} > Order Number is { > "+_params.getOrderNumber()+" } ]" ); > Logger.debug("[MyOrdersDispatchAction.java][private > ActionForward > findOrderDetail(ActionMapping _mapping, ActionForm > _form, > HttpServletRequest _request, HttpServletResponse > _response)][ Session > Value of orderVO has been initialized. Returning > {"+_SUCCESS+"}. User > Id is {"+_userId+"} Location is > {"+_params.getLocation()+"} Order > Number is { "+_params.getOrderNumber()+" } ]" ); > > _request.getSession().setAttribute("sessionLocation" > , _params.getLocation() ); > return > _mapping.findForward(_SUCCESS); > } > else > { > throw new > FindOrderDetailException("Order Not Found. > NOT FAILURE."); > } > } > else > { > throw new > FindOrderDetailException("Errors found in > request."); > } > }catch(FindOrderDetailException fod) > { > //Return action errors to the user > } > } > > > > -----Original Message----- > From: Minghui Yu [mailto:[EMAIL PROTECTED] > Sent: Friday, November 16, 2007 4:40 PM > To: Struts Users Mailing List > Subject: Pass Javabeans > > Hi folks, > > I know it is a stupid question. But how shall I pass > JavaBeans from an > Action object to a JSP page? Use > setAttribute('xxx',xxx)? > > I have a list of JavaBeans that I want to pass to > JSP pages to display > one by one. > > Shall be a very simple question to anyone who is not > a brand new > beginner to struts (version 1) like me :) > > Thanks a lot. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > > > > The information contained in this message and any > attachment may be > proprietary, confidential, and privileged or subject > to the work > product doctrine and thus protected from disclosure. > If the reader > of this message is not the intended recipient, or an > employee or > agent responsible for delivering this message to the > intended > recipient, you are hereby notified that any > dissemination, > distribution or copying of this communication is > strictly prohibited. > If you have received this communication in error, > please notify me > immediately by replying to this message and deleting > it and all > copies and backups thereof. 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