internal override GrainReference GetNextBucket(out IIndexInterface <K, V> nextBucketIndexInterface)
{
var nextBucket = GrainFactory.GetGrain <TotalHashIndexPartitionedPerKeyBucketImplTransactional <K, V> >(IndexUtils.GetNextIndexBucketIdInChain(this.AsWeaklyTypedReference()));
nextBucketIndexInterface = nextBucket;
return(nextBucket.AsWeaklyTypedReference());
}
public override async Task <IOrleansQueryResult <TIGrain> > GetResults()
{
IIndexInterface index = base.IndexFactory.GetIndex(typeof(TIGrain), this._indexName);
//the actual lookup for the query result to be streamed to the observer
return((IOrleansQueryResult <TIGrain>) await index.Lookup(this._param));
}
internal override GrainReference GetNextBucket(out IIndexInterface <K, V> nextBucketIndexInterface)
{
var nextBucket = GrainFactory.GetGrain <ITotalHashIndexSingleBucket <K, V> >(IndexUtils.GetNextIndexBucketIdInChain(this.AsWeaklyTypedReference()));
nextBucketIndexInterface = nextBucket;
return(nextBucket.AsWeaklyTypedReference());
}
private async Task <IIndexInterface <K, V> > GetNextBucketAndPersist()
{
IIndexInterface <K, V> nextBucket = GetNextBucket();
await PersistIndex();
return(nextBucket);
}
public override async Task ObserveResults(IAsyncBatchObserver <TIGrain> observer)
{
IIndexInterface index = base.IndexFactory.GetIndex(typeof(TIGrain), this._indexName);
IAsyncStream <TIGrain> resultStream = base.StreamProvider.GetStream <TIGrain>(Guid.NewGuid(), IndexUtils.GetIndexGrainPrimaryKey(typeof(TIGrain), this._indexName));
IOrleansQueryResultStream <TIGrain> result = new OrleansQueryResultStream <TIGrain>(resultStream);
//the observer is attached to the query result
await result.SubscribeAsync(observer);
//the actual lookup for the query result to be streamed to the observer
await index.Lookup(result.Cast <IIndexableGrain>(), this._param);
}
/// <summary>
/// An extension method to intercept the calls to DirectApplyIndexUpdate on an Index,
/// so that for a PerSilo index, it can obtain the GrainService of that index on the silo of the indexed grain.
/// </summary>
internal static Task <bool> ApplyIndexUpdate(this IIndexInterface index, SiloIndexManager siloIndexManager,
IIndexableGrain updatedGrain, Immutable <IMemberUpdate> update,
IndexMetaData idxMetaData, SiloAddress siloAddress = null)
{
if (index is IActiveHashIndexPartitionedPerSilo)
{
var bucketInCurrentSilo = siloIndexManager.GetGrainService <IActiveHashIndexPartitionedPerSiloBucket>(
GetAHashIndexPartitionedPerSiloGrainReference(siloIndexManager,
IndexUtils.GetIndexNameFromIndexGrain((IAddressable)index), index.GetType().GetGenericArguments()[1],
siloAddress
));
return(bucketInCurrentSilo.DirectApplyIndexUpdate(updatedGrain, update, idxMetaData.IsUniqueIndex, idxMetaData /*, siloAddress*/));
}
return(index.DirectApplyIndexUpdate(updatedGrain, update, idxMetaData.IsUniqueIndex, idxMetaData, siloAddress));
}
internal IndexInfo(IIndexInterface indexInterface, IndexMetaData metaData, IIndexUpdateGenerator updateGenerator)
{
this.IndexInterface = indexInterface;
this.MetaData = metaData;
this.UpdateGenerator = updateGenerator;
}
