public IEnumerable <T> ExecuteMany <T>(QueryDescription query, ObjectBinder objectBinder)
{
//// Check if the container-scoped cache already has results for this exact query in which case return the same
//return ContainerScopedCache.GetOrCreateTyped<IEnumerable<T>>(
// CacheKey.Create(new HiveQueryCacheKey(query)),
// () =>
// {
var totalOutput = new HashSet <T>();
foreach (var reader in _repositoryPool)
{
reader.ExecuteMany <T>(query, objectBinder)
.Cast <IReferenceByHiveId>()
.SkipWhile(RepositoryGroupExtensions.SkipAndMergeFromProviders(reader.ProviderMetadata, totalOutput.Cast <IReferenceByHiveId>()))
.ForEach(x => totalOutput.Add((T)x));
}
var results = totalOutput.Cast <IReferenceByHiveId>().DistinctBy(x => x.Id)
.Select(x => RepositoryGroupExtensions.ProcessIdsAndGroupRelationProxyDelegate(_groupRepo, _idRoot, x))
.Cast <T>();
// Raise event with the result of the query
FrameworkContext.TaskManager.ExecuteInContext(TaskTriggers.Hive.PostQueryResultsAvailable, this, new TaskEventArgs(FrameworkContext, new HiveQueryResultEventArgs(results, query, ContainerScopedCache)));
// Return
return(results);
//});
}
public T ExecuteSingle <T>(QueryDescription query, ObjectBinder objectBinder)
{
//return ContainerScopedCache.GetOrCreateTyped(
// CacheKey.Create(new HiveQueryCacheKey(query)),
// () =>
// {
// Run query on all providers, check for result type and sum / count etc. on all results
var result = _repositoryPool
.Select(reader => reader.ExecuteSingle <T>(query, objectBinder))
.FirstOrDefault();
var casted = result as IReferenceByHiveId;
if (casted != null)
{
RepositoryGroupExtensions.ProcessIdsAndGroupRelationProxyDelegate(_groupRepo, _idRoot, casted);
}
// Raise event with the result of the query
FrameworkContext.TaskManager.ExecuteInContext(TaskTriggers.Hive.PostQueryResultsAvailable, this, new TaskEventArgs(FrameworkContext, new HiveQueryResultEventArgs(result, query, ContainerScopedCache)));
// Return
return(result);
//});
}
public IEnumerable <T> ExecuteMany <T>(QueryDescription query, ObjectBinder objectBinder)
{
//// Check if no criteria was provided, and if we're not doing a skip / take, then throw an exception
//// (APN 2012 05 18 temporarily disabled while waiting on impl & config options)
//if (query.Criteria == null || query.Criteria is DefaultExpression)
//{
// if (!query.ResultFilters.Any(x => x.ResultFilterType == ResultFilterType.Skip || x.ResultFilterType == ResultFilterType.Take || x.ResultFilterType == ResultFilterType.SkipTake))
// {
// throw new PaginationRequiredException();
// }
//}
//// Check if the container-scoped cache already has results for this exact query in which case return the same
//return ContainerScopedCache.GetOrCreateTyped<IEnumerable<T>>(
// CacheKey.Create(new HiveQueryCacheKey(query)),
// () =>
// {
var totalOutput = new HashSet <T>();
foreach (var reader in _repositoryPool)
{
reader.ExecuteMany <T>(query, objectBinder)
.Cast <IReferenceByHiveId>()
.SkipWhile(RepositoryGroupExtensions.SkipAndMergeFromProviders(reader.ProviderMetadata, totalOutput.Cast <IReferenceByHiveId>()))
.ForEach(x => totalOutput.Add((T)x));
}
var results = totalOutput.Cast <IReferenceByHiveId>().DistinctBy(x => x.Id)
.Select(x => RepositoryGroupExtensions.ProcessIdsAndGroupRelationProxyDelegate(_groupRepo, _idRoot, x))
.Cast <T>();
// Raise event with the result of the query
FrameworkContext.TaskManager.ExecuteInContext(TaskTriggers.Hive.PostQueryResultsAvailable, this, new TaskEventArgs(FrameworkContext, new HiveQueryResultEventArgs(results, query, ContainerScopedCache)));
// Return
return(results);
//});
}
public T ExecuteScalar <T>(QueryDescription query, ObjectBinder objectBinder)
{
// Run query on all providers, check for result type and sum / count etc. on all results
// The below is broken, need a way of knowing the return type is int etc., summing them up and still returning as T
// whilst being able to compile... Relinq is great but this one thing really riles me
var result = _repositoryPool
.Select(entityRepositoryReader => entityRepositoryReader.ExecuteScalar <T>(query, objectBinder))
.FirstOrDefault();
var casted = result as IReferenceByHiveId;
if (casted != null)
{
RepositoryGroupExtensions.ProcessIdsAndGroupRelationProxyDelegate(_groupRepo, _idRoot, casted);
}
// Raise event with the result of the query
FrameworkContext.TaskManager.ExecuteInContext(TaskTriggers.Hive.PostQueryResultsAvailable, this, new TaskEventArgs(FrameworkContext, new HiveQueryResultEventArgs(result, query, ContainerScopedCache)));
// Return
return(result);
}