dependency-injection

In Play 2.4 with DI, how to use a service class in “Secured” trait?

早过忘川 提交于 2019-12-12 10:43:53
问题 Here's an authorisation example from Play Documentation (version 2.0.4; I tried to find a newer version of this document but couldn't): trait Secured { def username(request: RequestHeader) = request.session.get(Security.username) def onUnauthorized(request: RequestHeader) = Results.Redirect(routes.Auth.login) def withAuth(f: => String => Request[AnyContent] => Result) = { Security.Authenticated(username, onUnauthorized) { user => Action(request => f(user)(request)) } } def withUser(f: User =>

Dagger 2: What does @Module(includes =) do?

折月煮酒 提交于 2019-12-12 10:30:25
问题 I'm working on a project and I'm trying to make it as modular as possible. I'm trying to use the @Module(includes = {}) annotation to achieve my goals, and it's not working too well. I have a gradle module for all my Java code and within that each section has a module (AboutModule for the About page dependencies, for example). Then, for the whole "Core" gradle module, I have one Dagger 2 module called "CoreModule" which looks like this: @Module(includes = { AddonModule.class, VersionModule

Pharse level dependency parser using java,nlp

℡╲_俬逩灬. 提交于 2019-12-12 10:22:51
问题 Can someone please elaborate on how to obtain " pharse level dependency" using the Stanfords's Natural Language Processing Lexical Parser- open source Java code? http://svn.apache.org/repos/asf/nutch/branches/branch-1.2/src/plugin/lib-http/src/java/org/apache/nutch/protocol/http/api/RobotRulesParser.java http://docs.mongodb.org/manual/reference/sql-comparison/ such as pharse dependency The accident --------->happened falling ---------> as the night ---------->falling as such as many more...

Using Guice Injection in custom Authenticator on Google Cloud Endpoints

和自甴很熟 提交于 2019-12-12 09:47:07
问题 I want to secure a google cloud endpoint with a custom com.google.api.server.spi.config.Authenticator. see this post (Google Cloud Endpoints and user's authentication). For example to authenticate via facebook oauth. The Authenticator must have a default constructor without any params otherwise the Authenticator does not work. So Constructor Injection is not possible like this: @Inject public apiMethod(Log logger, Datastore datastore, MemCacheManager cacheManager) { this.logger = logger; this

what is the difference between using or not Spring Beans?

拟墨画扇 提交于 2019-12-12 09:43:31
问题 Probably i'll get a lot of downvotes, but it's so confusing for me all this fact of whether use beans or not. Lets suppose this example interface ICurrency { String getSymbol(); } public class CurrencyProcessor { private ICurrency currency ; public CurrencyProcessor(ICurrency currency) { this.currency = currency; } public void doOperation(){ String symbol = currency.getSymbol(); System.out.println("Doing process with " + symbol + " currency"); // Some process... } } So, to inject the

Lazy initialization of dependencies injected into constructor

时光总嘲笑我的痴心妄想 提交于 2019-12-12 09:43:26
问题 I have a class where I am injecting two service dependencies. I am using Unity container. public interface IOrganizer { void Method1(); void Method2(); void Method3(); } public class Organizer : IOrganizer { private IService1 _service1; private IService2 _service2; public Organizer(Iservice1 service1, IService2 service2) { _service1 = service1; _service2 = service2; } public void Method1() { /*makes use of _service1 and _service2 both to serve the purpose*/ } public void Method2() { /*makes

Dependency Injection when using the Command Pattern

陌路散爱 提交于 2019-12-12 09:33:34
问题 I'm using the Command Pattern for the first time. I'm a little unsure how I should handle dependencies. In the code below, we dispatch a CreateProductCommand which is then queued to be executed at a later time. The command encapsulates all the information it needs to execute. In this case it is likely we will need to access a data store of some type to create the product. My question is, how do I inject this dependency into the command so that it can execute? public interface ICommand { void

Dependency Injection Container

北慕城南 提交于 2019-12-12 09:25:44
问题 I have a Data Access Layer library that I would like to make "portable". The reason I like it to be portable is because I want to work with SQL Azure & Azure File Storage (eg, data + pdf reports) as well as Sql Server 2008R2 and File System storage on a concrete server. Based on spec the system is supposed to go live with the later implementation (sql + file system storage), while upon a meeting a certain scalability threshold we plan on moving to Azure. The data access class I use implements

Difference between ioc and dependency injection

孤者浪人 提交于 2019-12-12 09:11:53
问题 Difference between ioc and dependency injection . explain dependency injection in spring. What is difference b/w JSF dependency injection and spring dependency injection.. 回答1: IoC means Inversion of Control. Let’s see some “strongly coupled code” (“MyComponent” depends on “Logger”): public class MyComponent { public MyComponent() { : } public void DoSomeWork() { var logger = new Logger(); : } } We can change it to use an “interface“, but someone must provide the “implementation“: public

How to instantiate a service dynamically?

你说的曾经没有我的故事 提交于 2019-12-12 09:02:31
问题 I have a Utils Service which is very heavy. I Want to use some of the functions defined in it on a particular user action. As this service is heavy I want to instantiate it lazily(on user action). How do I achieve this? Service module.service('Utils', function (dep1, dep2) { this.method1 = function () { // do something } // other methods }); Controller module.controller('AppCtrl', function ($scope) { // I don't want to inject Utils as a dependency. $scope.processUserAction = function () { //