public static void WriteRelationBlock(RelationBlock e)
{
var buffer = new byte[DbControl.BlockByteSize[DbControl.RelationPath]];
Array.Copy(BitConverter.GetBytes(e.Used), buffer, 1);
Array.Copy(BitConverter.GetBytes(e.FirstNodeId), 0, buffer, 1, 4);
Array.Copy(BitConverter.GetBytes(e.SecondNodeId), 0, buffer, 5, 4);
Array.Copy(BitConverter.GetBytes(e.FirstNodePreviousRelationId), 0, buffer, 9, 4);
Array.Copy(BitConverter.GetBytes(e.FirstNodeNextRelation), 0, buffer, 13, 4);
Array.Copy(BitConverter.GetBytes(e.SecondNodePreviousRelationId), 0, buffer, 17, 4);
Array.Copy(BitConverter.GetBytes(e.SecondNodeNextRelation), 0, buffer, 21, 4);
Array.Copy(BitConverter.GetBytes(e.FirstPropertyId), 0, buffer, 25, 4);
Array.Copy(BitConverter.GetBytes(e.LabelId), 0, buffer, 29, 4);
WriteBlock(DbControl.RelationPath, e.RelationId, buffer);
}
public static RelationBlock ReadRelationBlock(int relationId)
{
var buffer = new byte[DbControl.BlockByteSize[DbControl.RelationPath]];
ReadBlock(DbControl.RelationPath, relationId, buffer);
RelationBlock e = new RelationBlock
{
Used = BitConverter.ToBoolean(buffer, 0),
FirstNodeId = BitConverter.ToInt32(buffer.Skip(1).Take(4).ToArray(), 0),
SecondNodeId = BitConverter.ToInt32(buffer.Skip(5).Take(4).ToArray(), 0),
FirstNodePreviousRelationId = BitConverter.ToInt32(buffer.Skip(9).Take(4).ToArray(), 0),
FirstNodeNextRelation = BitConverter.ToInt32(buffer.Skip(13).Take(4).ToArray(), 0),
SecondNodePreviousRelationId = BitConverter.ToInt32(buffer.Skip(17).Take(4).ToArray(), 0),
SecondNodeNextRelation = BitConverter.ToInt32(buffer.Skip(21).Take(4).ToArray(), 0),
FirstPropertyId = BitConverter.ToInt32(buffer.Skip(25).Take(4).ToArray(), 0),
LabelId = BitConverter.ToInt32(buffer.Skip(29).Take(4).ToArray(), 0),
RelationId = relationId
};
return(e);
}
