Re: Very basic question on formbeans
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Jim, Gallagher, Jim (RBoS ITDS Dublin) wrote: I'm wondering whether it's a better idea to create the formbean, populate it and use that to pass the information to the jsp? This really is the struts way. But, in order to do this, you don't have to do a ton of work. For instance, simply modify your struts-config.xml action mappings to include the name attribute for the mapping which initially displays your (empty) form. That will set up the (empty) form bean for further use. You can do nothing at this point, and you'll get an empty form, just like you do, now. Or, you can add code to your action (if you are using one) or to your JSP (though I highly recommend using an action instead of putting code in your JSP) that grabs the form bean just like in your form handling actions. Once you have a reference to this form bean, you can fill it with data. A simple example is loading a record from a DB for editing: 1. Hit the /edit.do URI which has myForm as the form bean. 2. Fetch the appropriate record from the database. 3. EditAction takes its form parameter and casts it to the appropriate type (MyBeanType). 4. Fill the bean with data from the DB record (don't forget to include the records PK). 5. Display your form, remembering to include all the data you just stuck into the bean, instead of just leaving the fields blank. ~ 6. Post your form to your form handler (/save.do). If you use struts validation, it can check to make sure that your form fields are (at least mostly) valid and redisplay the form if there's a problem. This is a huge advantage that I recommend you .. umm, take advantage of. 7. Process your form normally. Hope that helps, - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFFZF2S9CaO5/Lv0PARAgjjAJ9dJ4r+PUlvkJ2w7360w1weOASzEgCdEVFj /hpfA2psUPbscPSoY5ZfwtQ= =csK4 -END PGP SIGNATURE- - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Very basic question on formbeans
Jim, Basically, that is how our application is set up. There are transfer object beans that handle the movement between our controller layer and model and form beans for moving data between the view and controller layer. Sometimes, the TO and form bean may be exact matches and other times I may have additional fields of computed data that is needed in the form bean. Just my 2 cents. Al Gallagher, Jim (RBoS ITDS Dublin) wrote: Hi, I've designed written a couple of struts applications up to now, and recently the solution to a problem has caused me to wonder if I'm making a fundamental error in the way I've been doing it. Up to now, when designing a jsp I've only used the formbean to collect the information entered, rather than to pass it to the jsp in the first place. I'm wondering whether it's a better idea to create the formbean, populate it and use that to pass the information to the jsp? I can see there might be some MVC benefits, but I'd be interested in other peoples' opinions. Apologies if this is blindingly obvious, but I'm keen to determine the best way of utilising struts. Regards, Jim Jim Gallagher, New BACS Team, Domestic Payments, Payments, Security Fraud, Royal Bank of Scotland, Parkgate Business Park, Parkgate Street, Dublin 8. RBS Depot Code: DUB ITS:7-4171-7167 External: +353-1-648 7167 Internet mail: [EMAIL PROTECTED] The Royal Bank of Scotland plc, Registered in Scotland No. 90312. Registered Office: 36 St Andrew Square, Edinburgh EH2 2YB Authorised and regulated by the Financial Services Authority. This e-mail message is confidential and for use by the addressee only. If the message is received by anyone other than the addressee, please return the message to the sender by replying to it and then delete the message from your computer. Internet e-mails are not necessarily secure. The Royal Bank of Scotland plc does not accept responsibility for changes made to this message after it was sent. Whilst all reasonable care has been taken to avoid the transmission of viruses, it is the responsibility of the recipient to ensure that the onward transmission, opening or use of this message and any attachments will not adversely affect its systems or data. No responsibility is accepted by The Royal Bank of Scotland plc in this regard and the recipient should carry out such virus and other checks as it considers appropriate. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Very basic question on formbeans
From: Gallagher, Jim (RBoS ITDS Dublin) Up to now, when designing a jsp I've only used the formbean to collect the information entered, rather than to pass it to the jsp in the first place. I'm wondering whether it's a better idea to create the formbean, populate it and use that to pass the information to the jsp? FWIW, I use form beans to only represent form data and using scoped objects for anything not in the form. For me, decoupling those objects from Struts makes more sense, although perhaps only slightly. Dave - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
