Sorry for that... OnCreate is my method method ... Called only first time in onbeforender. I'll adapt it to event mechanism when upgrading to 1.5 but for now i'm using 1.4.
On Wed, May 16, 2012 at 9:29 PM, Martin Grigorov <mgrigo...@apache.org>wrote: > Hi, > > On Wed, May 16, 2012 at 7:43 PM, Ciocoiu Elvis > <elvis.cioc...@synthesys.ro> wrote: > > I'm working on a framework that builds the user interface (input fields, > > labels, containers for layout, grids, ...) and one of the features is > that > > a custom field editor (for example a dropdown) can publish events (for > > example value changed). Internally when creating the field editor I > > register it it as a PropertyProvider somewhere ... in a shared > > EditorContext. So this EditorContext is a central point in building a > > particular form. One other fieldEditor can declare it's interest in > events > > of type valueCHanged published by the first field editor (the dropdown). > > Well in EditorContext I have a map of propertyProviders and > > PropertyChangeListeners ... But my framework generates also some links > for > > filtering and CRUD features ... and replaces dynamically the components > > (for example the user click on add link and the list of persons is > replaced > > with a form that creates a new person). FInally every dynamically > generated > > form can have a field that listen for property change so I need a way to > > unregister somewhere. Can I do it using the wicket component callbacks > ... > > like register the listener in onCreate and unregister it in onDestroy? (I > > know that there is no onDestroy for component ... but maybe other > > callbacks). > > Which #onCreate() method do you mean ? > There is ISessionListener#onCreated() but nothing with that name for > the components. > Maybe you mean #onInitialize(). > > Have you considered using Wicket's event system ? > See the code of http://www.wicket-library.com/wicket-examples/events > Basically, every Component can broadcast events with Component@send() > method and every Component, Behavior, RequestCycle, Session and > Application can listen for there events by overriding their > #onEvent(Event) method. Depending on the type of the event's payload > you can decide whether you should do something or just ignore it. > > > > > > > Thank you > > On Wed, May 16, 2012 at 4:41 PM, Fernando Wermus > > <fernando.wer...@gmail.com>wrote: > > > >> May you explain further your user case? Thus, we can understand the > needs. > >> > >> > >> Fernando Wermus. > >> > >> www.linkedin.com/in/fernandowermus > >> > >> > >> > >> On Wed, May 16, 2012 at 7:00 AM, elvis.ciocoiu > >> <elvis.cioc...@synthesys.ro>wrote: > >> > >> > I'm working on something that uses custom information attached to the > >> > components and needs some sort of a listeners mechanism. The path > taken > >> was > >> > to register the needed listeners in onCreate() of some component but I > >> > don't > >> > have a solution to unregister ... The onRemove doesn't help because > it's > >> > called when replacing the component with another in an ajax call. Is > >> there > >> > a > >> > way to be notified that a component is reatached to component > hierarchy? > >> > I'm > >> > using wicket 1.4. Is there another solution? Imagine that using a > >> ListView > >> > that creates elements and every element registers some listeners ... I > >> need > >> > to clear those listeners when the element is destroyed. > >> > Thak you > >> > > >> > -- > >> > View this message in context: > >> > > >> > http://apache-wicket.1842946.n4.nabble.com/custom-listeners-tp4641122.html > >> > Sent from the Users forum mailing list archive at Nabble.com. > >> > > >> > --------------------------------------------------------------------- > >> > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > >> > For additional commands, e-mail: users-h...@wicket.apache.org > >> > > >> > > >> > > > > > > > > -- > > _____________________________________________________ > > Elvis Ciocoiu > > Senior Consultant > > > > Synthesys Consulting ROMANIA > > > > address: http://www.synthesys.ro > > e-mail: elvis.cioc...@synthesys.ro > > mobile : (40) 0745 13 75 85 > > > > This message and any attachments contain information, which may be > > confidential or privileged. > > If you are not the intended recipient, please refrain from any > > disclosure, copying, distribution or use of this information. > > Please be aware that such actions are prohibited. If you have received > > this transmission in error, kindly notify us by email to > > off...@synthesys.ro. We appreciate your cooperation. > > > > -- > Martin Grigorov > jWeekend > Training, Consulting, Development > http://jWeekend.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > -- _____________________________________________________ Elvis Ciocoiu Senior Consultant Synthesys Consulting ROMANIA address: http://www.synthesys.ro e-mail: elvis.cioc...@synthesys.ro mobile : (40) 0745 13 75 85 This message and any attachments contain information, which may be confidential or privileged. If you are not the intended recipient, please refrain from any disclosure, copying, distribution or use of this information. Please be aware that such actions are prohibited. If you have received this transmission in error, kindly notify us by email to off...@synthesys.ro. We appreciate your cooperation.
