public virtual IIndex CreateIndex(string indexName, Type indexClass, params Parameter[] indexParameters)
{
IndexableGraphContract.ValidateCreateIndex(indexName, indexClass, indexParameters);
if (Indices.ContainsKey(indexName))
{
throw ExceptionFactory.IndexAlreadyExists(indexName);
}
var index = new TinkerIndex(indexName, indexClass);
Indices.Put(index.Name, index);
return(index);
}
private static void ReadIndices(BinaryReader reader, TinkerGrapĥ tinkerGrapĥ)
{
Contract.Requires(reader != null);
Contract.Requires(tinkerGrapĥ != null);
// Read the number of indices
var indexCount = reader.ReadInt32();
for (var i = 0; i < indexCount; i++)
{
// Read the index name
var indexName = reader.ReadString();
// Read the index type
var indexType = reader.ReadByte();
if (indexType != 1 && indexType != 2)
{
throw new InvalidDataException("Unknown index class type");
}
var tinkerIndex = new TinkerIndex(indexName, indexType == 1 ? typeof(IVertex) : typeof(IEdge));
// Read the number of items associated with this index name
var indexItemCount = reader.ReadInt32();
for (var j = 0; j < indexItemCount; j++)
{
// Read the item key
var indexItemKey = reader.ReadString();
// Read the number of sub-items associated with this item
var indexValueItemSetCount = reader.ReadInt32();
for (var k = 0; k < indexValueItemSetCount; k++)
{
// Read the number of vertices or edges in this sub-item
var setCount = reader.ReadInt32();
for (var l = 0; l < setCount; l++)
{
// Read the vertex or edge identifier
if (indexType == 1)
{
var v = tinkerGrapĥ.GetVertex(ReadTypedData(reader));
if (v != null)
{
tinkerIndex.Put(indexItemKey, v.GetProperty(indexItemKey), v);
}
}
else if (indexType == 2)
{
var e = tinkerGrapĥ.GetEdge(ReadTypedData(reader));
if (e != null)
{
tinkerIndex.Put(indexItemKey, e.GetProperty(indexItemKey), e);
}
}
}
}
}
tinkerGrapĥ.Indices.Put(indexName, tinkerIndex);
}
}
