lifecycle

问题 I've already seen some examples, like the one below: (source: javaworld.com) That's nice description in theory, but I'd like to see also more JSF-related picture, with FacesServlet, PhaseListeners and other stuff to understand their role and sequence of calls in all these phases of lifecycle. 回答1: You can find here several: "jsf lifecycle" at images.google.com. Not a picture, but a complete self-practice example with detailed explanations what exactly happens during every phase can be found

问题 I have two entities in my code: Session and SessionPicture . There is a OneToOne relationship between Session and SessionPicture. SessionPicture is the mapping entity and Session is the inverse one. Session has an attribute called "Slug" , which is generated thanks to the StofDoctrineExtensionsBundle https://github.com/stof/StofDoctrineExtensionsBundle, and using the Gedmo\Sluggable annotation. I have a form to create a Session (so a SessionType), and this SessionType embeds a

问题 I wanted to start a computation and terminate it on user Cancel. You say that calling Thead.stop() unlocks all monitors and raises ThreadDeath exception. This means that finally is still called. Suppose I do not care about the locks but want to release the resources allocated so far. I would like the canceller to know/wait until thread has finished released its allocations. Suppose the finally section has an infinite loop in the finally section. Will thread.join succeed to that thread? 回答1:

问题 Note: This question is indeed somewhat similar to this one, but I think I can put it in a simpler and more specific way. I'm using Castle Windsor to intercept the URI passed to my Web API app to register the appropriate concrete class to the Controller's constructor. What I want to be able to do is pass a "site number" on the URI, perhaps always as either the first or last arg. IOW, for site 42, instead of http://localhost:28642/api/platypi/GetAll ...it would be: http://localhost:28642/api

问题 I need reauthenticate user credentials every time onRestart is called (usually this means the user has locked&unlocked the screen or put it on background and then returned to it). So I did that: @Override protected void onRestart() { super.onRestart(); Intent intent = new Intent(this, LoginActivity.class); intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); intent.setAction(LoginActivity.REAUTHENTICATE); startActivity(intent); } This works, the LoginActivity was shown, but when it finishes the

问题 I've searched everywhere a manner to have the equivalent of a main() function (yes function not method) inside a Android application but failed... Typically what I would want to do is: void main() { // do some really nice initialisations stuff here // ... let the app does his life, I really don't care // do some final stuff here before leaving } The nearest approach I've seen so far is to use a SplashScreen and override the OnCreate() method. The problem is that is not acceptable from my

问题 When I run mvn appengine:update on my Maven Java project, other goals from the Maven build lifecycle are executed in addition to just deploying a Google App Engine app. For example, running mvn appengine:update will spin off copy-resources and compile goals automatically. I am not saying that this is necessarily a bad thing, but I am really interested in understanding how and why the other Maven goals are executed. What are the settings for appengine:update that makes these other goals run?

问题 When I load the page first time, on some pages it shows unsubscribe error in ngOnDestroy as I am unsubscribing subscribes in it. I am not sure why ngOnDestroy is called at the init of the component. This is the error what I see when the page is first loaded. I thought this was some issue from angular2-multiselect-dropdown but in some other component, its own ngOnDestory is called as well and says subscription to unsubscribe is not defined. So I added if condition to remove the error message.

问题 Mojarra 2.2.12 Here is the piece of code taking over the instantiation of the FacesContext: FacesContext context = facesContextFactory.getFacesContext (servletConfig.getServletContext(), request, response, lifecycle); The expression is perfectly clear. Once we get a request, we acquire a global information from it and create the FacesContext instance using it. So, the instance is created for each request. But obtaining the intance of facesContextFactory seemed to me much more tricky. //

问题 In my registry I have Scan(scanner => { scanner.AssemblyContainingType<EmailValidation>(); scanner.ConnectImplementationsToTypesClosing(typeof(IValidation<>)); }); What am I supposed to do to define these all as Singletons? Also as an aside to this question, is there any reason to not define everything that is stateless as a singleton object that's registered in StructureMap? 回答1: Kevin's answer is correct for versions 2.5.4 and older. In the current StructureMap trunk (and when 2.5.5+ is