public static string GetSequencePrefix(IDataLayer dataLayer)
{
if (dataLayer == null)
{
throw new ArgumentNullException("dataLayer");
}
lock (SyncRoot) {
if (dataLayerForCachedServerPrefix /*.Target*/ != dataLayer)
{
using (Session session = new Session(dataLayer)) {
XpoServerId sid = session.GetObjectByKey <XpoServerId>(0);
if (sid == null)
{
// we can throw exception here instead of creating random prefix
sid = new XpoServerId(session);
sid.SequencePrefix = XpoDefault.NewGuid().ToString();
try {
sid.Save();
}
catch {
sid = session.GetObjectByKey <XpoServerId>(0, true);
if (sid == null)
{
throw;
}
}
}
cachedSequencePrefix = sid.SequencePrefix;
dataLayerForCachedServerPrefix = dataLayer;
// dataLayerForCachedServerPrefix.Target = dataLayer; <<< if WeakReference
}
}
return(cachedSequencePrefix);
}
}
protected override void OnSaving()
{
base.OnSaving();
if (!(Session is NestedUnitOfWork) && Session.IsNewObject(this))
{
_Oid = XpoDefault.NewGuid();
}
}
protected override void OnSaving()
{
base.OnSaving();
if (Session is NestedUnitOfWork || !Session.IsNewObject(this) || !Oid.Equals(Guid.Empty))
{
return;
}
Oid = XpoDefault.NewGuid();
}
protected override void OnSaving()
{
base.OnSaving();
if (TrucateStrings)
{
DoTrucateStrings();
}
if (!(Session is NestedUnitOfWork) && Session.IsNewObject(this) && _oid == Guid.Empty)
{
_oid = XpoDefault.NewGuid();
}
}
private Guid NewGuid()
{
//SequentialGuid.Create(SequentialGuidType.SequentialAsString)
if (IsSequential)
{
return(SQLGuidUtil.NewSequentialId());
}
else
{
return(XpoDefault.NewGuid());
}
}
protected override void OnSaving()
{
if (TrucateStrings)
{
DoTrucateStrings();
}
base.OnSaving();
if (Session is NestedUnitOfWork || !Session.IsNewObject(this) || !_oid.Equals(Guid.Empty))
{
return;
}
_oid = XpoDefault.NewGuid();
}
public override void AfterConstruction()
{
base.AfterConstruction();
_oid = XpoDefault.NewGuid();
}
