public PagedIndexQueryResult()
{
this.resultList = new List <TItem>();
ByteArrayEqualityComparer byteArrayEqualityComparer = new ByteArrayEqualityComparer();
this.resultMetadata = new Dictionary <byte[] /*IndexId*/, byte[] /*metadata*/>(byteArrayEqualityComparer);
this.totalCount = 0;
this.sortDescriptor = null;
this.cacheDataReferenceType = CacheDataReferenceTypes.CacheData;
}
public TQueryResult MergeResults(IList <TQueryResult> partialResults)
{
TQueryResult finalResult = default(TQueryResult);
if (partialResults != null && partialResults.Count > 0)
{
if (partialResults.Count == 1)
{
// No need to merge anything
finalResult = partialResults[0];
}
else
{
#region Merge partialResults into completeResultList
List <TItem> completeResultList = new List <TItem>();
ByteArrayEqualityComparer byteArrayEqualityComparer = new ByteArrayEqualityComparer();
Dictionary <byte[] /*IndexId*/, byte[] /*metadata*/> completeMetadata =
new Dictionary <byte[] /*IndexId*/, byte[] /*metadata*/>(byteArrayEqualityComparer);
int totalCount = 0;
foreach (TQueryResult partialResult in partialResults)
{
if (partialResult != null)
{
totalCount += partialResult.TotalCount;
Merge(
ref completeResultList,
partialResult.ResultList,
partialResult.SortDescriptor,
PageSize,
partialResult.CacheDataReferenceType == CacheDataReferenceTypes.CacheDataReference ? true : false);
if (metadataRequested)
{
foreach (KeyValuePair <byte[], byte[]> kvp in partialResult.ResultMetadata)
{
if (!completeMetadata.ContainsKey(kvp.Key))
{
completeMetadata.Add(kvp.Key, kvp.Value);
}
}
}
}
}
#endregion
#region Use page logic
// Paging required only in multicluster configuration on client side
// Paging for single clustered configuration performed on server side
if (pageNum != 0)
{
List <TItem> filteredResultList = new List <TItem>();
int pageSize = (completeResultList.Count < PageSize ? completeResultList.Count : PageSize);
filteredResultList = completeResultList.GetRange(0, pageSize);
}
#endregion
#region Create final result
finalResult = new TQueryResult();
finalResult.ResultList = completeResultList;
finalResult.TotalCount = totalCount;
if (metadataRequested)
{
Dictionary <byte[] /*IndexId*/, byte[] /*metadata*/> filteredMetadata =
new Dictionary <byte[] /*IndexId*/, byte[] /*metadata*/>(byteArrayEqualityComparer);
foreach (TItem cdr in finalResult.ResultList)
{
if (!filteredMetadata.ContainsKey(cdr.IndexId))
{
filteredMetadata.Add(cdr.IndexId, completeMetadata[cdr.IndexId]);
}
}
finalResult.ResultMetadata = filteredMetadata;
}
#endregion
}
}
return(finalResult);
}
