QueryService

查询服务基类

例如：

FilterParameter *filterParameters = [[FilterParameter alloc] init];
filterParameters.name = @"Countries@World";
filterParameters.attributeFilter = @"SMID = 1";
QueryBySQLParameters* parameters = [[QueryBySQLParameters alloc] init];
[parameters.queryParams addObject:filterParameters];
QueryService *queryService=[[QueryService alloc]init:@"http://192.168.18.142:8090/iserver/services/map-world/rest/maps/World/queryResults.json"];

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(processCompleted:) name:@"queryCompleted" object:nil];
[QueryService processAsync:parameters];

Parameters