Re: how to avoid creating new Action class instance for every request in STRUTS2
If you're using Spring you could define your action bean as a singleton and that would do the trick since the same instance would always be reused. Note that this is pretty crazy in most cases, you're probably better off storing our objects in session scope like Chris suggested. Zarar On 9/29/07, Jose4u [EMAIL PROTECTED] wrote: implementation: I have .jsp in which i have two text box and a Add button. whenever i enter something in the two text box and click on Add button the values needs to be added to the html table which is right down the entry area with two text boxes. Whenver i Click on add i am calling a Action class where i have a colection object in which i add the two text box values to the collection object and on SUCCESS comming to .jsp i iterate the collection object and display it in the .jsp. Problem facing: Whenever i call the action class and i am adding, its adding and displaying in the html table but the next time i add the previous values in the collection gets removed At a time only one object is there in the collection. The same implementation i did it in Struts 1 it was working fine, but in struts 2 its not retaining the values in the collection.Is it because for every call a new Action instance is created in Struts2? Is there any intercepto i need to use? Please provide me a solution to implement this functionality in struts 2 Thanks in advance Jose -- View this message in context: http://www.nabble.com/how-to-avoid-creating-new-Action-class-instance-for-every-request-in-STRUTS2-tf4538022.html#a12952131 Sent from the Struts - User mailing list archive at Nabble.com. - 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]
how to avoid creating new Action class instance for every request in STRUTS2
implementation: I have .jsp in which i have two text box and a Add button. whenever i enter something in the two text box and click on Add button the values needs to be added to the html table which is right down the entry area with two text boxes. Whenver i Click on add i am calling a Action class where i have a colection object in which i add the two text box values to the collection object and on SUCCESS comming to .jsp i iterate the collection object and display it in the .jsp. Problem facing: Whenever i call the action class and i am adding, its adding and displaying in the html table but the next time i add the previous values in the collection gets removed At a time only one object is there in the collection. The same implementation i did it in Struts 1 it was working fine, but in struts 2 its not retaining the values in the collection.Is it because for every call a new Action instance is created in Struts2? Is there any intercepto i need to use? Please provide me a solution to implement this functionality in struts 2 Thanks in advance Jose -- View this message in context: http://www.nabble.com/how-to-avoid-creating-new-Action-class-instance-for-every-request-in-STRUTS2-tf4538022.html#a12952131 Sent from the Struts - User mailing list archive at Nabble.com. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: how to avoid creating new Action class instance for every request in STRUTS2
You're probably right, whenever the Action is created, it's initialized. In struts 1, since the Actions didn't go away, any data was retained. This was usually the source of many, many bugs. It's a very rare condition when you want the data from one invocation of the Action to carry forward to the next, especially since in a multiuser system, it may not be the same user that hits the action twice in a row. So the second user would get the first users data. In order to help prevent these errors, the designers of Struts 2 made a conscious decision to create the Action instances as needed. So to emulate what you had in Struts 1, where everyone shares one pool of data from the action, just put your list in the Application scope (ServletContext) and retrieve it when you initialize your Action. If you really only want this to allow each user to maintain their own list (not like the Struts 1 implementation), you could put it in Session scope instead. (*Chris*) On 9/28/07, Jose4u [EMAIL PROTECTED] wrote: implementation: I have .jsp in which i have two text box and a Add button. whenever i enter something in the two text box and click on Add button the values needs to be added to the html table which is right down the entry area with two text boxes. Whenver i Click on add i am calling a Action class where i have a colection object in which i add the two text box values to the collection object and on SUCCESS comming to .jsp i iterate the collection object and display it in the .jsp. Problem facing: Whenever i call the action class and i am adding, its adding and displaying in the html table but the next time i add the previous values in the collection gets removed At a time only one object is there in the collection. The same implementation i did it in Struts 1 it was working fine, but in struts 2 its not retaining the values in the collection.Is it because for every call a new Action instance is created in Struts2? Is there any intercepto i need to use? Please provide me a solution to implement this functionality in struts 2 Thanks in advance Jose -- View this message in context: http://www.nabble.com/how-to-avoid-creating-new-Action-class-instance-for-every-request-in-STRUTS2-tf4538022.html#a12952131 Sent from the Struts - User mailing list archive at Nabble.com. - 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]
