public StructReadResult <T> ReadStruct <T>(string treeName, Slice key, StructureSchema <T> schema, WriteBatch writeBatch = null)
{
Tree tree = null;
if (writeBatch != null && writeBatch.IsEmpty == false)
{
WriteBatch.InBatchValue result;
if (writeBatch.TryGetValue(treeName, key, out result))
{
if (!result.Version.HasValue)
{
tree = GetTree(treeName);
}
switch (result.OperationType)
{
case WriteBatch.BatchOperationType.AddStruct:
return(new StructReadResult <T>(new StructureReader <T>((Structure <T>)result.Struct, schema), result.Version.HasValue ? (ushort)(result.Version.Value + 1) : tree.ReadVersion(key)));
case WriteBatch.BatchOperationType.Delete:
return(null);
}
}
}
if (tree == null)
{
tree = GetTree(treeName);
}
return(tree.ReadStruct(key, schema));
}
private static Dictionary <string, List <WriteBatch.BatchOperation> > CreateOperations(WriteBatch batch)
{
return(batch.Trees.ToDictionary(tree => tree, tree => batch.GetSortedOperations(tree).ToList()));
}
public IIterator Iterate(string treeName, WriteBatch writeBatch = null)
{
var tree = GetTree(treeName);
return(tree.Iterate(writeBatch));
}
