lifecycle

Rails, how do you access the raw request data at the absolute lowest level?

依然范特西╮ 提交于 2019-12-05 04:35:02
When is the Rails request object available at the earliest time during the request lifecycle? Essentially, when is the request first available as a request object, and in which object? ActionDispatch ? Can you access request parameters from Tester::Application ? If so, how? If not, what about using the environment? When is that information set? The Rack webserver creates the request object and then ActionDispatch inherits from it. So essentially, you'd be able to access the Rack::Request or ActionDispatch::Request objects within the middleware of the app. Rack::Request https://github.com/rack

Android - Ending activity from within rendering thread

自闭症网瘾萝莉.ら 提交于 2019-12-05 02:24:18
问题 Good afternoon. I am unfamiliar with the activity life cycle in android and have been reading up as best as possible but I cannot figure how to solve the following in a nice manner. I have an activity with a GLSurfaceView to draw various things on the screen. In the renderering thread for this GLSurfaceView I perform all the rendering as well as the actual update logic (I will seperate this out eventually). The trouble I am having is from one of the "screens" drawn within the renderer I wish

JUnit @Rule lifecycle interaction with @Before

ぃ、小莉子 提交于 2019-12-05 01:17:05
I have some JUnit tests that use the TemporaryFolder @Rule . They use the TemporaryFolder in a @Before method to perform some setup: @Rule public TemporaryFolder folder = new TemporaryFolder(); @Before public void init() { folder.newFile("my-file.txt"); } @Test public void myTest() { ... } Most of the time this works perfectly. However, when using the SpringJUnit4ClassRunner I find that in some cases the init() method is invoked before the Statement inside my TemporaryFolder instance is applied. Because of this, the temporary folder location is unset (i.e: null ) when folder is used within

What is the lifecycle of spring bean?

我的梦境 提交于 2019-12-05 00:57:03
I am confused about the lifecycle of Spring. XmlBeanFactory beanFactory = new XmlBeanFactory(new ClassPathResource("SpringHelloWorld.xml")); Whether the above snippet of codes creates the object or not? If the above answer is true. a) Then, for the bean where scope is "singleton" get the object which was created during the above snippet of code. Am i right or wrong? b) For the case where scope is "prototype", whether the created object was unused. Because, the container always return new object. XmlBeanFactory beanFactory = new XmlBeanFactory(new ClassPathResource("SpringHelloWorld.xml"));

Why can't jspService() be overridden?

让人想犯罪 __ 提交于 2019-12-04 22:29:42
问题 Why can't the jspService() method be overridden, where as jspInit() and jspDestroy() can be overridden? 回答1: This forum post explains why you cannot override jspService(). Basically, if you tried to override the jspService method, the code generated by the JSP compiler would end up with two copies of the method: the one you wrote and the one created by the compiler. This would result in a Java compilation error. 来源: https://stackoverflow.com/questions/2288514/why-cant-jspservice-be-overridden

Service keeps getting destroyed

守給你的承諾、 提交于 2019-12-04 19:56:26
I have a service that uses media player to play some music. The service is started by an activity and if something is playing and the user moves away from the activity the service should keep playing in the background. Running the service in the foreground seems to work (I can see the notification), but in close to all cases the service is destroyed immediately (OnDestroy called by the system on the service). I know using startForeground does not mean that the service is never killed, but it keeps getting destroyed right away, so I guess too few ressources forcing the system to kill it, is not

ComponentWillMount only trigger for first time?

时光毁灭记忆、已成空白 提交于 2019-12-04 19:12:37
MainComponent: <Tabs initialPage={this.props.day} tabBarUnderlineStyle={{ backgroundColor: '#5AF158' }} renderTabBar={() => <ScrollableTab />}> {this.renderTabHeader()} </Tabs> renderTabHeader() { return ( this.props.dateArray.map((date, i) => <Tab key={i} heading={date.format('DD/MM')} tabStyle={styles.tabStyling} activeTabStyle={styles.activeTabStyle} textStyle={styles.tabTextStyle} activeTextStyle={styles.activeTabTextStyle} > <View style={{ backgroundColor: '#EEEEEE', flex: 1 }}> <Content contentDate={date.format('YYYY-MM-DD')} /> </View> </Tab> ) ); } Content Component: class Content

How to detect when Windows 8 goes to sleep or resumes

狂风中的少年 提交于 2019-12-04 17:21:00
I have an app that keeps a connection alive to a server, however if the user walks away and the tablet goes to sleep, I would like to handle the disconnect gracefully, and I would also like to log back in when the user wakes the tablet. I've tried in my putting the following code in my connection class, but they never get fired. Application.Current.Suspending += this.OnAppSuspending; Application.Current.Resuming += this.OnAppResuming;; For desktop apps, you can use SystemEvents.PowerModeChanged event to know if Windows is going into sleep state. I don't know if this works for the tablets too,

How do I setState within React's recompose's lifecycle method?

主宰稳场 提交于 2019-12-04 16:33:11
问题 I am using recompose in my React project https://github.com/acdlite/recompose/ It's a great library. I'm using the compose utility as a container component that passes state down as props to the presentational component like so: const enhance = compose( lifecycle({ componentDidMount() { myCall .getResponse([productId]) .then(products => { setIsReady(true); }); }, }), withState('isAvailable', 'setIsAvailable', false), withState('isReady', 'setIsReady', false), mapProps(({ setIsAvailable,

Difference between a Component and a View in Aurelia (and their lifecycles)

拟墨画扇 提交于 2019-12-04 14:23:17
Could you please tell me what is difference between a component and a View in Aurelia? What are their architectures and What is the difference between their lifecycles? As a rule of thumb, the difference between a view and a component in Aurelia can be summarised as: A view in Aurelia is simply put the .html and the styling that comes with it (.scss/.less/.css) A view-model in Aurelia is the code behind it (.js/.ts class) A component is the combination between a view and view-model, and is glued together automagically by Aurelia In essence you can say that, with Aurelia, pretty much everything