factory

问题 I have really no much experience using design patterns. I guess I need to use Abstract Factory Pattern in my situation. I'm creating a system to generate math problems. The developer must implement two interfaces: Problem: This contains the properties which needs the problem generated. Configuration: This is the range parameters or conditions to generate a Problem. Factory: He is incharge of create the new Problem. What does it mean? It means like a black box. For input is the Configuration

问题 By defining a IDataRepositoryFactory non-generic interface with a generic Create method: public interface IDataRepositoryFactory { T Create<T>(DataContext context) where T : IDataRepository; // new non-generic interface } I'm able to avoid having to write factory implementations: _kernel.Bind(t => t.FromAssemblyContaining(typeof(DataRepository<>)) .SelectAllInterfaces() .EndingWith("RepositoryFactory") .BindToFactory()); _kernel.Bind(t => t.FromAssemblyContaining(typeof(DataRepository<>))

问题 Here ,I am calling my node program and getting data from MYSQL and on click exporting in excel. $scope.exportToExcel=function(){ $http.get("/getDetails").then(function(response){ console.log(response.data) $scope.details = response.data[1].data; // here you will get data },function(res){ console.log("Error",res) //error occured }); $scope.exportToExcel=function(tableId){ // ex: '#my-table' var exportHref=Excel.tableToExcel(tableId,'WireWorkbenchDataExport'); $timeout(function(){location.href

问题 In my project I have an interface annotated with org.springframework.stereotype.Service tag. I have two different implementation for this interface. In my manage bean, I am injecting interface Service class and using its methods. Now my requirement is, in run time I have to pick particular implementation (lets say based on login user group) so that respective logic can be invoked. As per my understanding, we can achieve this using Factory pattern in java and achieve the same. How can we

问题 I there any patterns or internal solutions for solving next problem: i've got interface ImyInterface (or some baseClass) and Attribute myAttribute . I need a factory class, that provides me functionality for searching all types with empty constructor, inheriting ImyInterface and marked with attribute myAttribute . I wanna search in different modes: 1) search types in current assembly 2) search types in all solution assemblies 3) search types in target library (.lib or .dll) at result I wanna

问题 I have a class which depends on 3 classes, all 3 of which have other classes they rely on. Currently, I'm using a container class to build up all the required classes, inject them into one another and return the application. The simplified version of the container looks something like this: class Builder { private $_options; public function __construct($options) { $this->_options = $options; } public function build() { $cache = $this->getCache(); $response = $this->getResponse(); $engine =

问题 I am learning the basics of AngularJS and I can´t figure out why this Factory returns an undefined value. It´ my first attempt to create and understand factories. I saw many examples on SO and on the internet but I couldn´ find the solution. I am trying to create an array of strings (colors) on the factory and a button shown in each different view to add one string to the array. But the factory returns undefined so I can´t inject the value to the controllers. Here is the code. index.html

问题 Erich Gamma's GOF design pattern book says: Whereas the word application can create several documents on its own as shown below: It appears that one application can create several documents. In what kind of case then will I require to make Application class abstract and then derive from it? 回答1: Application class being abstract is not the essence of factory pattern, but we need to see the intent behind it. The same intent is being fulfilled by abstract Plugin class ( in below example

问题 Error happens when I click the submit button on a form. LoginController and controllerAs is define in route config Angular version: AngularJS v1.3.11 dataService.js file 'use strict'; app.factory('dataService',['$http',DataService]); function DataService($http) { var urlBase='http://washerycloud.cloudapp.net/v1/user/'; var service = {}; service.Login =Login; service.Register= Register; service.Store = StoreID; service.Update = Update; service.Delete = Delete; return service; /**Login function

问题 I am using Castle Windsor v3.4.0 to create a RavenDB document session instance but when I use a RavenDB client version later than 3.0.3660 I get this error when calling the Store method: Castle.MicroKernel.ComponentNotFoundException: 'No component for supporting the service System.Net.Http.HttpMessageHandler was found' Here is the smallest piece code I can come up with that reproduces the error: using Castle.Facilities.TypedFactory; using Castle.MicroKernel.Registration; using Castle.Windsor;