Method GetTaskResult

GetTaskResult(String)

Get a Trackable instance of the task with specified taskId.

Declaration
ITrackableTask GetTaskResult(string taskId)
Parameters
Type Name Description
System.String taskId

Task Id of the Map reduce task.
Returns
Type Description
ITrackableTask

Returns an instance to track the task for result and status.
Examples
ICache cache = CacheManager.GetCache("myCache");

string key1 = "2202";

Product product1 = new Product()
{
    Id = 4,
    Category = "Clothes",
    UnitPrice = 4,
    UnitsAvailable = 2
};

string key2 = "2203";
Product product2 = new Product()
{
    Id = 4,
    Category = "Shoes",
    UnitPrice = 5,
    UnitsAvailable = 9
};

cache.Add(key1, product1);
cache.Add(key2, product2);

MapReduceTask mapReduceTask = new MapReduceTask();
mapReduceTask.Mapper = new ProductCountMapper();
mapReduceTask.Combiner = new ProductCountCombinerFactory();
mapReduceTask.Reducer = new ProductCountReducerFactory();

string query = "SELECT Alachisoft.NCache.Sample.Data.Product WHERE this.Category IN (?)";
QueryCommand queryCommand = new QueryCommand(query);
queryCommand.Parameters.Add("Category", "Clothes");

ITrackableTask trackableInstance = cache.ExecutionService.ExecuteTask(mapReduceTask, null, queryCommand);

string taskID1 = trackableInstance.TaskId;
Random randomNumber = new Random();
string taskID2 = randomNumber.Next(2).ToString();

ITrackableTask testResult = cache.ExecutionService.GetTaskResult(taskID1); //returns the traceable instance

testResult = cache.ExecutionService.GetTaskResult(taskID2); //returns nothing as no task with such id is being running