Re: ajax request and hibernate lazy loading
It's a matter of using the right Model: in this case you should use LoadableDetachableModels—for your list and for the selected item. The models page on the wiki has ample information, as does this excellent article by Igor: http://wicketinaction.com/2008/09/building-a-smart-entitymodel. IIRC the phonebook also shows you how to achieve this. Assuming you have The Book, you might want to check out chapter 4 and read up on detachable models. Martijn On Fri, Nov 7, 2008 at 2:36 PM, miro [EMAIL PROTECTED] wrote: You are right this is not related to ajax and more of hibernate . here is my object hirearchy EaBatchInfo has many EaBatchAuditInfo In the page constructor I load List of EaBatchInfo and render my page .By default I pull the first index from list to display EaBatchAuditInfo from EaBatchInfo. now when user wants to see second EaBatchInfo.EaBatchAuditInfo he clicks on second EaBatchInfo in onclick method I try to get EaBatchAuditInfo for second EaBatchInfo and here i get lazy loading exception becasue the session was closed when rendering my page first time and the new session created dosent have list of EaBatchInfo so one solution is to have OpenSeissionView pattern in my page construction and desctruction , are there any example of open view session pattern for a wicket page lifetime ? Martijn Dashorst wrote: I would actually keep using OSIV. To answer the question: probably you are using models wrong. If OSIV works for your normal requests, it works for Ajax requests. There is nothing different between these requests. Martijn On Fri, Nov 7, 2008 at 1:33 PM, Bruno Borges [EMAIL PROTECTED] wrote: With Ajax request I would probably avoid that pattern. That could lead to serious problems. How about having a different method to load the object with the required data for that specific ajax request? cheers, Bruno Borges blog.brunoborges.com.br +55 21 76727099 The glory of great men should always be measured by the means they have used to acquire it. - Francois de La Rochefoucauld On Fri, Nov 7, 2008 at 1:27 PM, miro [EMAIL PROTECTED] wrote: I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Become a Wicket expert, learn from the best: http://wicketinaction.com Apache Wicket 1.3.4 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20388432.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Become a Wicket expert, learn from the best: http://wicketinaction.com Apache Wicket 1.3.4 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ajax request and hibernate lazy loading
With Ajax request I would probably avoid that pattern. That could lead to serious problems. How about having a different method to load the object with the required data for that specific ajax request? cheers, Bruno Borges blog.brunoborges.com.br +55 21 76727099 The glory of great men should always be measured by the means they have used to acquire it. - Francois de La Rochefoucauld On Fri, Nov 7, 2008 at 1:27 PM, miro [EMAIL PROTECTED] wrote: I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
ajax request and hibernate lazy loading
I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ajax request and hibernate lazy loading
I would actually keep using OSIV. To answer the question: probably you are using models wrong. If OSIV works for your normal requests, it works for Ajax requests. There is nothing different between these requests. Martijn On Fri, Nov 7, 2008 at 1:33 PM, Bruno Borges [EMAIL PROTECTED] wrote: With Ajax request I would probably avoid that pattern. That could lead to serious problems. How about having a different method to load the object with the required data for that specific ajax request? cheers, Bruno Borges blog.brunoborges.com.br +55 21 76727099 The glory of great men should always be measured by the means they have used to acquire it. - Francois de La Rochefoucauld On Fri, Nov 7, 2008 at 1:27 PM, miro [EMAIL PROTECTED] wrote: I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Become a Wicket expert, learn from the best: http://wicketinaction.com Apache Wicket 1.3.4 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ajax request and hibernate lazy loading
You are right this is not related to ajax and more of hibernate . here is my object hirearchy EaBatchInfo has many EaBatchAuditInfo In the page constructor I load List of EaBatchInfo and render my page .By default I pull the first index from list to display EaBatchAuditInfo from EaBatchInfo. now when user wants to see second EaBatchInfo.EaBatchAuditInfo he clicks on second EaBatchInfo in onclick method I try to get EaBatchAuditInfo for second EaBatchInfo and here i get lazy loading exception becasue the session was closed when rendering my page first time and the new session created dosent have list of EaBatchInfo so one solution is to have OpenSeissionView pattern in my page construction and desctruction , are there any example of open view session pattern for a wicket page lifetime ? Martijn Dashorst wrote: I would actually keep using OSIV. To answer the question: probably you are using models wrong. If OSIV works for your normal requests, it works for Ajax requests. There is nothing different between these requests. Martijn On Fri, Nov 7, 2008 at 1:33 PM, Bruno Borges [EMAIL PROTECTED] wrote: With Ajax request I would probably avoid that pattern. That could lead to serious problems. How about having a different method to load the object with the required data for that specific ajax request? cheers, Bruno Borges blog.brunoborges.com.br +55 21 76727099 The glory of great men should always be measured by the means they have used to acquire it. - Francois de La Rochefoucauld On Fri, Nov 7, 2008 at 1:27 PM, miro [EMAIL PROTECTED] wrote: I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Become a Wicket expert, learn from the best: http://wicketinaction.com Apache Wicket 1.3.4 is released Get it now: http://www.apache.org/dyn/closer.cgi/wicket/1.3. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20388432.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: ajax request and hibernate lazy loading
Yep that was also what I were thinking. Martijn Dashorst wrote: I would actually keep using OSIV. To answer the question: probably you are using models wrong. If OSIV works for your normal requests, it works for Ajax requests. There is nothing different between these requests. Martijn On Fri, Nov 7, 2008 at 1:33 PM, Bruno Borges [EMAIL PROTECTED] wrote: With Ajax request I would probably avoid that pattern. That could lead to serious problems. How about having a different method to load the object with the required data for that specific ajax request? cheers, Bruno Borges blog.brunoborges.com.br +55 21 76727099 The glory of great men should always be measured by the means they have used to acquire it. - Francois de La Rochefoucauld On Fri, Nov 7, 2008 at 1:27 PM, miro [EMAIL PROTECTED] wrote: I am using hibernate and all my collections are lazy , they get loaded only when called . I am also using ajax to get collection property on click , but i am getting Lazy loading exception for ajax request where I load the collection , I am using org.springframework.orm.hibernate3.support.OpenSessionInViewFilter ,Please help mehow to use OpenSessionInViewFilterwith ajax calls ? -- View this message in context: http://www.nabble.com/ajax-request-and-hibernate-lazy-loading-tp20387124p20387124.html Sent from the Wicket - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- -Wicket for love Nino Martinez Wael Java Specialist @ Jayway DK http://www.jayway.dk +45 2936 7684 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
