public virtual void Reload()
{
if ((m_sessionUniqueId == Guid.Empty) || (m_sourceUniqueId == Guid.Empty))
{
throw new MigrationException(
string.Format(MigrationToolkitResources.Culture, MigrationToolkitResources.UninitializedHighWaterMark, m_name));
}
using (RuntimeEntityModel context = RuntimeEntityModel.CreateInstance())
{
var highwaterMarksQuery = from hwm in context.RTHighWaterMarkSet
where hwm.SessionUniqueId.Equals(m_sessionUniqueId) &&
hwm.SourceUniqueId.Equals(m_sourceUniqueId) &&
hwm.Name.Equals(m_name)
select hwm;
RTHighWaterMark rtHighWaterMark = null;
if (highwaterMarksQuery.Count() > 0)
{
rtHighWaterMark = highwaterMarksQuery.First();
if (rtHighWaterMark.Value != null)
{
m_current = CreateValueFromString(rtHighWaterMark.Value);
}
else
{
m_current = default(T);
}
}
else
{
rtHighWaterMark = RTHighWaterMark.CreateRTHighWaterMark(0, m_sessionUniqueId, m_sourceUniqueId, m_name);
context.AddToRTHighWaterMarkSet(rtHighWaterMark);
context.TrySaveChanges();
m_current = default(T);
}
}
/*
* using (TfsMigrationConsolidatedDBEntities context = TfsMigrationConsolidatedDBEntities.CreateInstance())
* {
* HighWaterMarkEntity highWaterMarkEntity = context.CreateHighWaterMark
* (m_sessionUniqueId,
* m_sourceUniqueId,
* m_name).First<HighWaterMarkEntity>();
*
*
* // ToDo error handling
* if (highWaterMarkEntity.Value == null)
* {
* m_current = default(T);
* }
* else
* {
* m_current = CreateValueFromString(highWaterMarkEntity.Value);
* }
* }*/
}
public virtual void Update(T newValue)
{
if (newValue == null)
{
throw new ArgumentNullException("newValue");
}
if ((m_sessionUniqueId == Guid.Empty) || (m_sourceUniqueId == Guid.Empty))
{
throw new MigrationException(
string.Format(MigrationToolkitResources.Culture, MigrationToolkitResources.UninitializedHighWaterMark, m_name));
}
string newValueString = GetValueAsString(newValue);
// Todo We probably could use EDM eventing , OnBeforeUpdate(newValue);
using (RuntimeEntityModel context = RuntimeEntityModel.CreateInstance())
{
var highwaterMarksQuery = from hwm in context.RTHighWaterMarkSet
where hwm.SessionUniqueId.Equals(m_sessionUniqueId) &&
hwm.SourceUniqueId.Equals(m_sourceUniqueId) &&
hwm.Name.Equals(m_name)
select hwm;
if (highwaterMarksQuery.Count() > 0)
{
RTHighWaterMark rtHighWaterMark = highwaterMarksQuery.First();
rtHighWaterMark.Value = newValueString;
context.TrySaveChanges();
}
else
{
RTHighWaterMark rtHighWaterMark = new RTHighWaterMark();
rtHighWaterMark.SessionUniqueId = m_sessionUniqueId;
rtHighWaterMark.SourceUniqueId = m_sourceUniqueId;
rtHighWaterMark.Name = m_name;
rtHighWaterMark.Value = newValueString;
context.AddToRTHighWaterMarkSet(rtHighWaterMark);
context.TrySaveChanges();
}
}
m_current = newValue;
}