public bool TryGetMetadata(IndexQueryBase <BlittableJsonReaderObject> query, out ulong metadataHash, out QueryMetadata metadata)
{
metadataHash = 0;
metadata = null;
if (query == null || query.Query == null)
{
return(false);
}
metadataHash = GetQueryMetadataHash(query);
metadata = _cache[metadataHash % CacheSize];
if (metadata == null)
{
return(false);
}
if (metadata.CacheKey != metadataHash)
{
var nextProbe = Hashing.Mix(metadataHash) % CacheSize;
metadata = _cache[nextProbe];
if (metadata == null || metadata.CacheKey != metadataHash)
{
return(false);
}
}
// we don't compare the query parameters because they don't matter
// for the query plan that we use, at any rate, they will either error
// if the query uses them and it is missing or they are there and will
// noop because they aren't being used
return(query.Query == metadata.QueryText);
}
public RetrieveDocumentIdsVisitor(TransactionOperationContext serverContext, DocumentsOperationContext context, QueryMetadata metadata, ByteStringContext allocator) : base(metadata.Query.QueryText)
{
_query = metadata.Query;
_serverContext = serverContext;
_context = context;
_metadata = metadata;
_allocator = allocator;
}
public HasLoadIncludeCounterOrCmpXcngVisitor(QueryMetadata queryMetadata)
{
_queryMetadata = queryMetadata;
}
public IndexQueryServerSide(string query, BlittableJsonReaderObject queryParameters = null)
{
Query = Uri.UnescapeDataString(query);
QueryParameters = queryParameters;
Metadata = new QueryMetadata(Query, queryParameters, 0);
}
public IndexQueryServerSide(QueryMetadata metadata)
{
Metadata = metadata;
}
public RetrieveDocumentIdsVisitor(QueryMetadata metadata, ByteStringContext allocator) : base(metadata.Query.QueryText)
{
_query = metadata.Query;
_metadata = metadata;
_allocator = allocator;
}
public FilterKey(QueryMetadata queryMetadata)
{
_queryMetadata = queryMetadata;
}
public EsprimaHasLoadOrIncludeVisitor(QueryMetadata queryMetadata)
{
_queryMetadata = queryMetadata;
}