Re: Dynaform Type Conversion
--- Joe Hertz [EMAIL PROTECTED] wrote: Does Struts provide a method where I provide it the name of the bean defined in the struts-config.xml and it return me an instance of the appropriate class, with all the dyna properties set up? At 3:19 PM -0800 3/25/04, Hubert Rabago wrote: It does for the nightly build and Struts 1.2.0, though I can't recall the name of the method. For pre-1.2, you'll need to write code to do that. There was a thread that discussed this, with the last few messages (of that thread) still coming in today. Just look for that. Richard Yee pasted code there on how to instantiate a Dyna Bean. I also pointed to an archive where I pasted the code I use in my apps to instantiate a Dyna Bean. Right now, you can look up a FormBeanConfig object from a ModuleConfig, and then you can use the FormBeanConfig and the ActionServlet to get a new ActionForm instance from RequestUtils. This does not go through the request/session scope searching that Struts uses when it processes the request parameters into a populated ActionForm. Given the fact that this has come up three or four times in the last week, it seems clear that it's time to expose a simple method that takes a form bean name and a scope and either finds or creates that form bean. I'm just waiting for a few things to settle down -- there's going to be a Struts 1.2.1 release pretty soon now, and we have to move the CVS repository to a new location as part of Struts becoming a top-level Apache project... but that stuff should get straightened out in the next week or two. Joe -- Joe Germuska [EMAIL PROTECTED] http://blog.germuska.com Imagine if every Thursday your shoes exploded if you tied them the usual way. This happens to us all the time with computers, and nobody thinks of complaining. -- Jef Raskin - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: DynaForm Type Conversion
Take a look at BeanUtils.copyProperties. By default, though, it doesn't support conversion of dates, since it wouldn't know how you'd want your dates formatted. Check the archives of this list, there's been some discussion on that. Another archive you can check is that of the commons-user list. If you're looking for further reduction in code, take a look at http://www.rabago.net/struts/formdef which I'm working on. It's alpha, but an initial release is coming real soon (and I'm looking for folks to help me develop/maintain it). I believe the Struts dev team has plans to include functionality like this in a future version of Struts. For now, we either make do with BeanUtils, or do the conversion ourselves, or through third party plugins like what I'm working on. If you feel strongly enough about it, you can rant some more on http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27321 though like I said, the dev team has plans for supporting this functionality in a future version. How near or far into the future might be influenced by user requests. :) --- Joe Hertz [EMAIL PROTECTED] wrote: I have a bean I persist with Hibernate. It's properties are: 2 Floats 1 Integer (the key) 2 Dates Now, relying on my handy dandy copies of Struts KickStart, Struts In Action, and all of the Web, I'm apparently supposed to declare these methods in the Form I am using as Strings since automatic type conversion can fubar them. But Since the JSP I am using is getting these fields with html:text fields, I apparently am supposed to have methods in form to do the type conversion for me. Okay, that's light years better than putting this in the business layer, but fine. Is there an Automatic way I can get a DynaBean to do this for me? Maybe a Get (prop, type) and get(prop, type, value) for the types youd find in java.lang? If not, there should be, because it limits what a DynaBean can do in a big kinda way. Why have a type declaration in the DTD if youre only ever going to want to use String and String[] ? :-) I mean, it's not like I couldnt add such a set of methods to my DynaValidatorActionForm subclass, but what I'd want is for the framework to use them for me without me needing to know about it. (I dont ask for much, do I???). If not, I'd like to continue to use my Subclassed DynaValidatorActionForm anyway, but I am wondering if it is going to be self-defeating to declare custom getters and setters for properties that are declared in struts config? Should I just use it as a non-dyna form? Maybe I've been up too late (okay, I have) but it's the little things like this that makes me feel like Struts is creating work for me rather than saving me from it. Tx for indulging my sleepy rant. -Joe __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Dynaform Type Conversion
Well, I was using copyProperties...or rather I\'d want to. I\'m just trying to avoid having to declare my Transfer Objects the hard way. Say I use Mark Lowe\'s idea of the Nested Form Bean (makes sense in alot of ways), but I want to do it dynamically. i.e. DynaForm A has a List property of what will be a bunch of DynaBean B\'s. So riddle me this, how do I instantiate a DynaBean myself as it is defined in the struts-config.xml? When it\'s passed in to the Action as the form, it\'s all prepped and ready to go. If I instantiate an instance of the class myself, it\'s got no dynaproperties. I know BeanUtils will provide functionality to do this, but I would hope there\'s an exposed method that does based straight out of the contents struts-config. Does Struts provide a method where I provide it the name of the bean defined in the struts-config.xml and it return me an instance of the appropriate class, with all the dyna properties set up? -Joe -Original Message- From: Hubert Rabago [mailto:[EMAIL PROTECTED] Sent: Thursday, March 25, 2004 8:38 AM To: Struts Users Mailing List Subject: Re: DynaForm Type Conversion Take a look at BeanUtils.copyProperties. By default, though, it doesn\'t support conversion of dates, since it wouldn\'t know how you\'d want your dates formatted. Check the archives of this list, there\'s been some discussion on that. Another archive you can check is that of the commons-user list. If you\'re looking for further reduction in code, take a look at http://www.rabago.net/struts/formdef which I\'m working on. It\'s alpha, but an initial release is coming real soon (and I\'m looking for folks to help me develop/maintain it). I believe the Struts dev team has plans to include functionality like this in a future version of Struts. For now, we either make do with BeanUtils, or do the conversion ourselves, or through third party plugins like what I\'m working on. If you feel strongly enough about it, you can rant some more on http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27321 though like I said, the dev team has plans for supporting this functionality in a future version. How near or far into the future might be influenced by user requests. :) --- Joe Hertz [EMAIL PROTECTED] wrote: I have a bean I persist with Hibernate. It\'s properties are: 2 Floats 1 Integer (the key) 2 Dates Now, relying on my handy dandy copies of Struts KickStart, Struts In Action, and all of the Web, I\'m apparently supposed to declare these methods in the Form I am using as Strings since automatic type conversion can fubar them. But Since the JSP I am using is getting these fields with html:text fields, I apparently am supposed to have methods in form to do the type conversion for me. Okay, that\'s light years better than putting this in the business layer, but fine. Is there an Automatic way I can get a DynaBean to do this for me? Maybe a Get (prop, type) and get(prop, type, value) for the types youd find in java.lang? If not, there should be, because it limits what a DynaBean can do in a big kinda way. Why have a type declaration in the DTD if youre only ever going to want to use String and String[] ? :-) I mean, it\'s not like I couldnt add such a set of methods to my DynaValidatorActionForm subclass, but what I\'d want is for the framework to use them for me without me needing to know about it. (I dont ask for much, do I???). If not, I\'d like to continue to use my Subclassed DynaValidatorActionForm anyway, but I am wondering if it is going to be self-defeating to declare custom getters and setters for properties that are declared in struts config? Should I just use it as a non-dyna form? Maybe I\'ve been up too late (okay, I have) but it\'s the little things like this that makes me feel like Struts is creating work for me rather than saving me from it. Tx for indulging my sleepy rant. -Joe __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html - 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: Dynaform Type Conversion
It does for the nightly build and Struts 1.2.0, though I can't recall the name of the method. For pre-1.2, you'll need to write code to do that. There was a thread that discussed this, with the last few messages (of that thread) still coming in today. Just look for that. Richard Yee pasted code there on how to instantiate a Dyna Bean. I also pointed to an archive where I pasted the code I use in my apps to instantiate a Dyna Bean. --- Joe Hertz [EMAIL PROTECTED] wrote: Well, I was using copyProperties...or rather I\'d want to. I\'m just trying to avoid having to declare my Transfer Objects the hard way. Say I use Mark Lowe\'s idea of the Nested Form Bean (makes sense in alot of ways), but I want to do it dynamically. i.e. DynaForm A has a List property of what will be a bunch of DynaBean B\'s. So riddle me this, how do I instantiate a DynaBean myself as it is defined in the struts-config.xml? When it\'s passed in to the Action as the form, it\'s all prepped and ready to go. If I instantiate an instance of the class myself, it\'s got no dynaproperties. I know BeanUtils will provide functionality to do this, but I would hope there\'s an exposed method that does based straight out of the contents struts-config. Does Struts provide a method where I provide it the name of the bean defined in the struts-config.xml and it return me an instance of the appropriate class, with all the dyna properties set up? -Joe -Original Message- From: Hubert Rabago [mailto:[EMAIL PROTECTED] Sent: Thursday, March 25, 2004 8:38 AM To: Struts Users Mailing List Subject: Re: DynaForm Type Conversion Take a look at BeanUtils.copyProperties. By default, though, it doesn\'t support conversion of dates, since it wouldn\'t know how you\'d want your dates formatted. Check the archives of this list, there\'s been some discussion on that. Another archive you can check is that of the commons-user list. If you\'re looking for further reduction in code, take a look at http://www.rabago.net/struts/formdef which I\'m working on. It\'s alpha, but an initial release is coming real soon (and I\'m looking for folks to help me develop/maintain it). I believe the Struts dev team has plans to include functionality like this in a future version of Struts. For now, we either make do with BeanUtils, or do the conversion ourselves, or through third party plugins like what I\'m working on. If you feel strongly enough about it, you can rant some more on http://nagoya.apache.org/bugzilla/show_bug.cgi?id=27321 though like I said, the dev team has plans for supporting this functionality in a future version. How near or far into the future might be influenced by user requests. :) --- Joe Hertz [EMAIL PROTECTED] wrote: I have a bean I persist with Hibernate. It\'s properties are: 2 Floats 1 Integer (the key) 2 Dates Now, relying on my handy dandy copies of Struts KickStart, Struts In Action, and all of the Web, I\'m apparently supposed to declare these methods in the Form I am using as Strings since automatic type conversion can fubar them. But Since the JSP I am using is getting these fields with html:text fields, I apparently am supposed to have methods in form to do the type conversion for me. Okay, that\'s light years better than putting this in the business layer, but fine. Is there an Automatic way I can get a DynaBean to do this for me? Maybe a Get (prop, type) and get(prop, type, value) for the types youd find in java.lang? If not, there should be, because it limits what a DynaBean can do in a big kinda way. Why have a type declaration in the DTD if youre only ever going to want to use String and String[] ? :-) I mean, it\'s not like I couldnt add such a set of methods to my DynaValidatorActionForm subclass, but what I\'d want is for the framework to use them for me without me needing to know about it. (I dont ask for much, do I???). If not, I\'d like to continue to use my Subclassed DynaValidatorActionForm anyway, but I am wondering if it is going to be self-defeating to declare custom getters and setters for properties that are declared in struts config? Should I just use it as a non-dyna form? Maybe I\'ve been up too late (okay, I have) but it\'s the little things like this that makes me feel like Struts is creating work for me rather than saving me from it. Tx for indulging my sleepy rant. -Joe __ Do you Yahoo!? Yahoo! Finance Tax Center - File online. File on time. http://taxes.yahoo.com/filing.html - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional
