Re: [OS-webwork] Velocity Views
On Fri, 7 Feb 2003, Kelvin Tan wrote: Interesting. flamebaitI happen to come from the Turbine + hardcore Velocity (JSP sucks, mostly) camp, so would be interested to know why you choose JSP + Velocity, and not either. /flamebait Does it have anything to do with WebWork support for either? Probably has something to do with view neutrality and the fact that WebWork is a COMPONENT and not a way to force people into doing things in ONE WAY and ONE WAY only. Come on, man, think. If you're going to troll, try harder. Even Struts is view-neutral (for the most part). - Joseph B. Ottinger [EMAIL PROTECTED] http://enigmastation.comIT Consultant --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
I'm actually using Velocity for everything. For data retrieving, I created a generic Action class (that extends ActionSupport) which is extended by all actions. I've placed a getAction() method that returns the action itself so it can be accessed from the velocity template as $action. For instance, if I need to retrieve a particular user I'll put: #set($aUser = $action.getUser($userId)) Hope this can be of any help. Kelvin Tan wrote: Thanks. Thought as much... I'm guessing most WW users don't use Velocity? KT -- Marco Papini --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
What advantage does this have over the included WebworkVelocityServlet? In this model, you don't have access to the valuestack? Cheers, Scott Marco Papini wrote: I'm actually using Velocity for everything. For data retrieving, I created a generic Action class (that extends ActionSupport) which is extended by all actions. I've placed a getAction() method that returns the action itself so it can be accessed from the velocity template as $action. For instance, if I need to retrieve a particular user I'll put: #set($aUser = $action.getUser($userId)) Hope this can be of any help. Kelvin Tan wrote: Thanks. Thought as much... I'm guessing most WW users don't use Velocity? KT -- ATLASSIAN - http://www.atlassian.com Expert J2EE Software, Services and Support --- Need a simple, powerful way to track and manage issues? Try JIRA - http://www.atlassian.com/software/jira --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Scott Farquhar wrote: What advantage does this have over the included WebworkVelocityServlet? He never said that he wasn't using the WebworkVelocityServlet. The method he describes is mostly just to get access to the action as a Velocity object. Otherwise it would be impossible to call methods, as he described. /Rickard -- Rickard Öberg [EMAIL PROTECTED] Senselogic Got blog? I do. http://dreambean.com --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Rickard Öberg wrote: He never said that he wasn't using the WebworkVelocityServlet. The method he describes is mostly just to get access to the action as a Velocity object. Otherwise it would be impossible to call methods, as he described. I'm confused. Isn't the action at the top of the valuestack after it is called? so $abc calls action.getAbc() ? -- ATLASSIAN - http://www.atlassian.com Expert J2EE Software, Services and Support --- Need a simple, powerful way to track and manage issues? Try JIRA - http://www.atlassian.com/software/jira --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
[OS-webwork] Velocity Views
For JSP views, its simple enough to simply forward to them, since they are able to retrieve the required data to render. Velocity templates are dumb and operate on a push-basis (except for the use of velocity tools), in the sense that they require objects to be placed in the context for them. What's the best practice for accomplishing this if forwarding from an action? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Kelvin, See the velocity examples that ship with webwork, and also compare the velocity templates (in /template/xhtml) with the JSP templates in the same directory. Velocity uses the velocity servlet, which allows the values to be looked up on the stack if they are not found in the context. You may want to have a look at the source for the WebWorkVelocityServlet. Cheers, Scott Kelvin Tan wrote: For JSP views, its simple enough to simply forward to them, since they are able to retrieve the required data to render. Velocity templates are dumb and operate on a push-basis (except for the use of velocity tools), in the sense that they require objects to be placed in the context for them. What's the best practice for accomplishing this if forwarding from an action? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork -- ATLASSIAN - http://www.atlassian.com Expert J2EE Software, Services and Support --- Need a simple, powerful way to track and manage issues? Try JIRA - http://www.atlassian.com/software/jira --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
I have checked them out, but the context is no different from the stack. At some point, the objects you need have to be placed on the stack. The question is, what is the best practice for where these objects should be added? In the action? I've found that its often advantageous, when working with templating engines especially (which require two components- servlet + template), to separate view logic (retrieval of data to display) from action logic (which actually does something, ie modify data, etc). Wondering how WebWork supports this... Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook On Thu, 06 Feb 2003 23:27:21 +1100, Scott Farquhar said: Kelvin, See the velocity examples that ship with webwork, and also compare the velocity templates (in /template/xhtml) with the JSP templates in the same directory. Velocity uses the velocity servlet, which allows the values to be looked up on the stack if they are not found in the context. You may want to have a look at the source for the WebWorkVelocityServlet. Cheers, Scott Kelvin Tan wrote: For JSP views, its simple enough to simply forward to them, since they are able to retrieve the required data to render. Velocity templates are dumb and operate on a push-basis (except for the use of velocity tools), in the sense that they require objects to be placed in the context for them. What's the best practice for accomplishing this if forwarding from an action? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld http://www.vasoftware.com ___ Opensymphony- webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Not really. Velocity templates are dumb. They don't retrieve data to display (not in the original push model at least. Turbine and Scarab came up with a Pull model), they display data given to them in the context. I see Velocity templates as containing presentation logic, not view logic. Maybe I'm being pedantic, but I define presentation logic as containing the formatting, positional and aesthetic elements, and view logic as retrieving the data for the presentation logic to render. Let me give you an example. Say we have a simple view logic class which given a UUID, retrieves and materializes a User object from the database. Now, this view can be reused by any template which requires the retrieval of a single User, like a template for display a user's profile (read-only), a template for display of user profile (as a form), perhaps a template which requires renders various stuff on the same page, one of which is the display of user profile... Do you see where I'm driving at? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook On Thu, 6 Feb 2003 17:33:00 -0800, Patrick Lightbody said: Maybe I'm missing the question. The Action does something, the velocity template retrieves data to display. -Pat --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Yup, makes sense. Sounds like you need action chaining possibly. - Original Message - From: Kelvin Tan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, February 06, 2003 5:46 PM Subject: Re: [OS-webwork] Velocity Views Not really. Velocity templates are dumb. They don't retrieve data to display (not in the original push model at least. Turbine and Scarab came up with a Pull model), they display data given to them in the context. I see Velocity templates as containing presentation logic, not view logic. Maybe I'm being pedantic, but I define presentation logic as containing the formatting, positional and aesthetic elements, and view logic as retrieving the data for the presentation logic to render. Let me give you an example. Say we have a simple view logic class which given a UUID, retrieves and materializes a User object from the database. Now, this view can be reused by any template which requires the retrieval of a single User, like a template for display a user's profile (read-only), a template for display of user profile (as a form), perhaps a template which requires renders various stuff on the same page, one of which is the display of user profile... Do you see where I'm driving at? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook On Thu, 6 Feb 2003 17:33:00 -0800, Patrick Lightbody said: Maybe I'm missing the question. The Action does something, the velocity template retrieves data to display. -Pat --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Thanks. Thought as much... I'm guessing most WW users don't use Velocity? KT On Thu, 6 Feb 2003 17:47:30 -0800, Patrick Lightbody said: Yup, makes sense. Sounds like you need action chaining possibly. - Original Message - From: Kelvin Tan [EMAIL PROTECTED] To: opensymphony- [EMAIL PROTECTED] Sent: Thursday, February 06, 2003 5:46 PM Subject: Re: [OS-webwork] Velocity Views Not really. Velocity templates are dumb. They don't retrieve data to display (not in the original push model at least. Turbine and Scarab came up with a Pull model), they display data given to them in the context. I see Velocity templates as containing presentation logic, not view logic. Maybe I'm being pedantic, but I define presentation logic as containing the formatting, positional and aesthetic elements, and view logic as retrieving the data for the presentation logic to render. Let me give you an example. Say we have a simple view logic class which given a UUID, retrieves and materializes a User object from the database. Now, this view can be reused by any template which requires the retrieval of a single User, like a template for display a user's profile (read-only), a template for display of user profile (as a form), perhaps a template which requires renders various stuff on the same page, one of which is the display of user profile... Do you see where I'm driving at? Regards, Kelvin The book giving manifesto - http://how.to/sharethisbook On Thu, 6 Feb 2003 17:33:00 -0800, Patrick Lightbody said: Maybe I'm missing the question. The Action does something, the velocity template retrieves data to display. -Pat --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony- webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld http://www.vasoftware.com ___ Opensymphony- webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
On Thu, 6 Feb 2003 21:44:46 -0800, Patrick Lightbody said: I use both. This is a total guess, but I'd say maybe 25% use velocity. -pat So for V, do you use view logic in a separate action and action-chain, or do you just place everything in one action (business + view logic)? What about others on the list, how do you do it? KT --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Interesting. flamebaitI happen to come from the Turbine + hardcore Velocity (JSP sucks, mostly) camp, so would be interested to know why you choose JSP + Velocity, and not either. /flamebait Does it have anything to do with WebWork support for either? On Thu, 6 Feb 2003 22:14:47 -0800, Patrick Lightbody said: I do a few different things depending on the weather, how much I ate that day, and the time of day: 1) not even use Actions for the deeper layers and just use normal java objects for the business code 2) use Actions, but not chain and instead call them with GenericDispatcher (a la OSWorkflow) 3) use actiong chaining -Pat - Original Message - From: Kelvin Tan [EMAIL PROTECTED] To: opensymphony- [EMAIL PROTECTED] Sent: Thursday, February 06, 2003 10:11 PM Subject: Re: [OS-webwork] Velocity Views On Thu, 6 Feb 2003 21:44:46 -0800, Patrick Lightbody said: I use both. This is a total guess, but I'd say maybe 25% use velocity. -pat So for V, do you use view logic in a separate action and action- chain, or do you just place everything in one action (business + view logic)? What about others on the list, how do you do it? KT --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld http://www.vasoftware.com ___ Opensymphony- webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
Re: [OS-webwork] Velocity Views
Kelvin Tan wrote: Interesting. flamebaitI happen to come from the Turbine + hardcore Velocity (JSP sucks, mostly) camp, so would be interested to know why you choose JSP + Velocity, and not either. /flamebait Does it have anything to do with WebWork support for either? I'm currently using Velocity for about 90%, and JSP for the rest. The 10% JSP are usually forms, since the form tags are not available in Velocity yet. /Rickard -- Rickard Öberg [EMAIL PROTECTED] Senselogic Got blog? I do. http://dreambean.com --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Opensymphony-webwork mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/opensymphony-webwork
