internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
if(!val.IsString) return false;
return val.AsString.StartsWith(_value.AsString);
}
internal override bool ExecuteFullScan(BsonDocument doc)
{
var val = doc.Get(this.Field);
if (!val.IsString)
{
return(false);
}
return(val.AsString.StartsWith(_value.AsString));
}
internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
if (!val.IsString)
{
return(false);
}
return(val.AsString.StartsWith(_value.AsString));
}
internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
foreach (var value in _values.Distinct())
{
var diff = val.CompareTo(value);
if (diff == 0) return true;
}
return false;
}
internal override bool ExecuteFullScan(BsonDocument doc)
{
var val = doc.Get(this.Field);
foreach (var value in _values.Distinct())
{
var diff = val.CompareTo(value);
if (diff == 0)
{
return(true);
}
}
return(false);
}
private bool UpdateDoc(BsonValue id, BsonDocument doc)
{
// serialize object
var bytes = BsonSerializer.Serialize(doc);
// start transaction
this.Database.Transaction.Begin();
try
{
var col = this.GetCollectionPage(false);
// if no collection, no updates
if (col == null)
{
this.Database.Transaction.Abort();
return(false);
}
// find indexNode from pk index
var indexNode = this.Database.Indexer.Find(col.PK, id, false, Query.Ascending);
// if not found document, no updates
if (indexNode == null)
{
this.Database.Transaction.Abort();
return(false);
}
// update data storage
var dataBlock = this.Database.Data.Update(col, indexNode.DataBlock, bytes);
// delete/insert indexes - do not touch on PK
foreach (var index in col.GetIndexes(false))
{
var key = doc.Get(index.Field);
var node = this.Database.Indexer.GetNode(dataBlock.IndexRef[index.Slot]);
// check if my index node was changed
if (node.Key.CompareTo(key) != 0)
{
// remove old index node
this.Database.Indexer.Delete(index, node.Position);
// and add a new one
var newNode = this.Database.Indexer.AddNode(index, key);
// point my index to data object
newNode.DataBlock = dataBlock.Position;
// point my dataBlock
dataBlock.IndexRef[index.Slot] = newNode.Position;
dataBlock.Page.IsDirty = true;
}
}
this.Database.Transaction.Commit();
return(true);
}
catch
{
this.Database.Transaction.Rollback();
throw;
}
}
internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
return(val.CompareTo(_value) >= (_equals ? 0 : 1));
}
internal override bool ExecuteFullScan(BsonDocument doc)
{
return(doc.Get(this.Field).CompareTo(_value) <= (_equals ? 0 : -1));
}
internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
return val.CompareTo(_value) != 0;
}
internal override bool ExecuteFullScan(BsonDocument doc, IndexOptions options)
{
var val = doc.Get(this.Field).Normalize(options);
return(val.CompareTo(_start) >= 0 && val.CompareTo(_end) <= 0);
}
internal override bool ExecuteFullScan(BsonDocument doc)
{
var val = doc.Get(this.Field);
return(val.CompareTo(_start) >= 0 && val.CompareTo(_end) <= 0);
}
