[Wicket-user] Where/how to store state information
Hi list, I have created a navigation menu component and a menu model. The menu component should show on every page of my application, so I derive all pages from a page class which creates and adds a menu instance. The menu must remember which item is selected (the state is representable by a simple String). Now I have the following problem: Where do I keep the state of the menu? It seems obvious to use the session, but how? The Wicket Session class does not allow arbitrary attributes. I guess I could get the original HttpSession somehow, but I am sure that there is a better way. Timo --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Where/how to store state information
For anything you want to store in the session, you can provide your own session implementation. Not having some kind of generic map in session was deliberate, as we think it is better to provide a custom one that has strongly typed properties. See for example the hangman example in wicket-examples. For this specific case, I think storing it in the session is probably the easiest way, though not the most elegant way; what if you decide to have multiple navigation components in your application? If possible, the best way imo is to design your navigation component such that you don't need any extra state info; just the current page and maybe some additional attributes of that page and the current user. If that is not possible, you might check out whether it is doable to pass the state whenever you navigate to other pages. Not sure whether that is a better idea than storing session info though. Eelco On 10/19/05, Timo Stamm [EMAIL PROTECTED] wrote: Hi list, I have created a navigation menu component and a menu model. The menu component should show on every page of my application, so I derive all pages from a page class which creates and adds a menu instance. The menu must remember which item is selected (the state is representable by a simple String). Now I have the following problem: Where do I keep the state of the menu? It seems obvious to use the session, but how? The Wicket Session class does not allow arbitrary attributes. I guess I could get the original HttpSession somehow, but I am sure that there is a better way. Timo --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Where/how to store state information
Can't you declare an instance variable in your own application specific session class and add getter/setter methods. I am not sure if this is the best solution. Please let me know if you find a better way for doing it. Regards Dipu - Original Message - From: Timo Stamm [EMAIL PROTECTED] To: wicket-user@lists.sourceforge.net Sent: Wednesday, October 19, 2005 2:48 PM Subject: [Wicket-user] Where/how to store state information Hi list, I have created a navigation menu component and a menu model. The menu component should show on every page of my application, so I derive all pages from a page class which creates and adds a menu instance. The menu must remember which item is selected (the state is representable by a simple String). Now I have the following problem: Where do I keep the state of the menu? It seems obvious to use the session, but how? The Wicket Session class does not allow arbitrary attributes. I guess I could get the original HttpSession somehow, but I am sure that there is a better way. Timo --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Where/how to store state information
Eelco Hillenius wrote: For anything you want to store in the session, you can provide your own session implementation. Not having some kind of generic map in session was deliberate, as we think it is better to provide a custom one that has strongly typed properties. See for example the hangman example in wicket-examples. Thanks, that's what I was looking for. If possible, the best way imo is to design your navigation component such that you don't need any extra state info; just the current page and maybe some additional attributes of that page and the current user. If that is not possible, you might check out whether it is doable to pass the state whenever you navigate to other pages. Not sure whether that is a better idea than storing session info though. I have considered both, but right now it is too early for generalization. Timo --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
Re: [Wicket-user] Where/how to store state information
Dipu wrote: Can't you declare an instance variable in your own application specific session class and add getter/setter methods. I am not sure if this is the best solution. Please let me know if you find a better way for doing it. Thanks, Eelco pointed me to the hangman example which shows how to use such a specific session implementation. Timo --- This SF.Net email is sponsored by: Power Architecture Resource Center: Free content, downloads, discussions, and more. http://solutions.newsforge.com/ibmarch.tmpl ___ Wicket-user mailing list Wicket-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wicket-user
