Re: Entity Locator and Spring

I found a solution myself, by extending RequestFactoryServelt and passing a ServiceLayerDecorator. Note that it's possible to implement functionality of ServiceLocator  as a decorator here too.

Hope it will help someone else.

public class SpringRequestFactoryServelet extends RequestFactoryServlet {

  private static final long serialVersionUID = 1L;

  public static class SpringLocatorDecorator extends ServiceLayerDecorator {

    private final ApplicationContext ctx;

    public SpringLocatorDecorator(ApplicationContext ctx) {

      super();

      this.ctx = ctx;

    }

    @Override

    public <T extends Locator<?, ?>> T createLocator(Class<T> clazz) {

      return ctx.getBean(clazz);

    }

  }

  public SpringRequestFactoryServelet() {

    super(

        new DefaultExceptionHandler(),

        new SpringLocatorDecorator(

            WebApplicationContextUtils.getWebApplicationContext(getThreadLocalServletContext())));

  }

}

On Sun, Apr 1, 2012 at 6:42 PM, Yucong Sun (叶雨飞) <sunyucong@gmail.com> wrote:

Hi,

I've been trying to get RequstFactoryServelt to construct my entity locator from spring, because my entity locator needs to implement this findbyId() function which requires DB operations which I have some DAO implemented and I want to inject them into the entity locator. 

However, EntityLocator is created directly, so my injection never worked, I have two questions:

1) It seems I would need  a ServiceLocator equivalent for my entity locator. 

2) Why does gwt needs discticnt between entity service and entity locator? It's probabaly okay if entitylocator don't have to implement this findById() function, because it can be implement locally (no db operation needed). But now i am stuck with both Locator and Service, and they both need to talk to storage.

Cheers.. 

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