相关疑难解决方法(0)

来自匕首讨论@:

我有一个类从对象图中获取一些依赖项,并在运行时从调用者获取其他依赖项.

public class ImageDownloader {
  // Get these dependencies from the injector.
  private final HttpClient httpClient;
  private final ExecutorService executorService;

  // Get these from the caller.
  private final URL imageUrl;
  private final ImageCallback callback;

  ...
}

我提出了一个解决方案,在那里我定义了一个工厂,

public class ImageDownloader {
  ...
  public static class Factory {
    private final HttpClient httpClient;
    private final ExecutorService executorService;

    @Inject
    public Factory(HttpClient httpClient, ExecutorService executorService) {
      this.httpclient = httpClient;
      this.executorService = executorService;
    }

    public ImageDownloader create(URL imageUrl, ImageCallback callback) {
      return …

使用Google Guice或Gin我可以指定参数不受依赖注入框架控制:

class SomeEditor {


  @Inject
  public SomeEditor(SomeClassA a, @Assisted("stage") SomeClassB b) {
  }

}

辅助参数stage在SomeEditor创建实例时指定.

SomeClassA的实例取自对象图,SomeClassB的实例在运行时从调用者获取.

在Dagger中有类似的方法吗？