5
我试图创建一个ValueProxy
,其中包含有关用户正在执行的搜索的一些基本信息。出于某种原因,GWT希望它成为一个EntityProxy,但我不明白为什么(对于这个类来说,它也没有任何意义,因为它是一个EntityProxy)。无法创建ValueProxy
// FilterProxy extends ValueProxy
@ProxyFor(DayFilter.class)
public interface DayFilterProxy extends FilterProxy {
void setFilterValue(Date day);
Date getFilterValue();
}
public class DayFilter extends Filter {
public DayFilter() {
setOperator(FilterOperator.GREATER_THAN_OR_EQUAL);
setField("dateRequested");
}
public void setFilterValue(Date date) {
this.value = date;
}
public Date getFilterValue() {
return value;
}
}
public interface PaginationRequest<T> extends RequestContext {
Request<List<T>> paginate(int offset, int limit, String sortColumn,
boolean isSortAscending, List<FilterProxy> filters);
Request<Integer> count(List<FilterProxy> filters);
}
@Service(value=TripService.class, locator=SchedgyServiceLocator.class)
public interface TripRequest extends PaginationRequest<TripProxy> {
Request<TripProxy> save(TripProxy trip);
}
在被发送此回服务器的活动:
// Request is a TripRequest
DayFilterProxy filter = request.create(DayFilterProxy.class);
这导致:
java.lang.AssertionError: com.schedgy.trip.dao.filter.trip.proxy.DayFilterProxy is not an EntityProxy type
at com.google.web.bindery.requestfactory.shared.impl.IdFactory.asEntityProxy(IdFactory.java:66)
at com.google.web.bindery.requestfactory.shared.impl.IdFactory.createId(IdFactory.java:229)
at com.google.web.bindery.requestfactory.shared.impl.IdFactory.allocateId(IdFactory.java:41)
at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext.create(AbstractRequestContext.java:478)
at com.schedgy.trip.client.activity.TripsActivity.getFilters(TripsActivity.java:56)
任何想法?由于ValueProxies在代码中的其他地方工作,它显然是我所忽略的。
是的,我认为是这样。我只在RequestContext中引用基本的FilterProxy类型。我认为在GWT 2.4中,我们可以在请求工厂中使用多态参数? – Brad
您必须添加引用它们的@ ExtraTypes注释,然后:http://code.google.com/p/google-web-toolkit/wiki/RequestFactory_2_4#Polymorphism_support –
太棒了!谢谢! – Brad