protected virtual void Init()
{
CheckRuntimeCompatibility();
isClosed = false;
isLocal = baseIdentification.IsLocal();
// The check if it is a new Database must be executed before object
// writer initialization. Because Object Writer Init
// Creates the file so the check (which is based on the file existence
// would always return false*/
bool isNewDatabase = IsNewDatabase();
commitListeners = new OdbArrayList <ICommitListener>();
classIntrospector = provider.GetClassIntrospector();
ISession session = BuildDefaultSession();
// Object Writer must be created before object Reader
objectWriter = BuildObjectWriter();
// Object writer is a two Phase init object
objectWriter.Init2();
objectReader = BuildObjectReader();
AddSession(session, false);
// If the file does not exist, then a default header must be created
if (isNewDatabase)
{
objectWriter.CreateEmptyDatabaseHeader(OdbTime.GetCurrentTimeInMs(), baseIdentification.GetUserName(), baseIdentification.GetPassword());
}
else
{
try
{
GetObjectReader().ReadDatabaseHeader(baseIdentification.GetUserName(), baseIdentification.GetPassword());
}
catch (ODBAuthenticationRuntimeException e)
{
Close();
throw;
}
}
objectWriter.AfterInit();
objectIntrospector = BuildObjectIntrospector();
this.triggerManager = BuildTriggerManager();
// This forces the initialization of the meta model
MetaModel metaModel = GetMetaModel();
if (OdbConfiguration.CheckModelCompatibility())
{
CheckMetaModelCompatibility(classIntrospector.Instrospect(metaModel.GetAllClasses()));
}
// logically locks access to the file (only for this Virtual machine)
FileMutex.GetInstance().OpenFile(GetStorageDeviceName());
// Updates the Transaction Id in the file
objectWriter.WriteLastTransactionId(GetCurrentTransactionId());
this.objectWriter.SetTriggerManager(this.triggerManager);
this.introspectionCallbackForInsert = new DefaultInstrumentationCallbackForStore(this, triggerManager, false);
this.introspectionCallbackForUpdate = new DefaultInstrumentationCallbackForStore(this, triggerManager, true);
}
public override void Close()
{
if (isClosed)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbIsClosed
.AddParameter(baseIdentification.GetIdentification()));
}
// When not local (client server) session can be null
NeoDatis.Odb.Core.Transaction.ISession lsession = GetSession(isLocal);
if (baseIdentification.CanWrite())
{
objectWriter.WriteLastODBCloseStatus(true, false);
}
objectWriter.Flush();
if (isLocal && lsession.TransactionIsPending())
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.TransactionIsPending
.AddParameter(lsession.GetId()));
}
isClosed = true;
objectReader.Close();
objectWriter.Close();
// Logically release this file (only for this virtual machine)
NeoDatis.Odb.Impl.Core.Layers.Layer3.Engine.FileMutex.GetInstance().ReleaseFile(GetStorageDeviceName
());
if (lsession != null)
{
lsession.Close();
}
if (objectIntrospector != null)
{
objectIntrospector.Clear();
objectIntrospector = null;
}
// remove trigger manager
provider.RemoveLocalTriggerManager(this);
}
protected virtual void Init()
{
CheckRuntimeCompatibility();
isClosed = false;
isLocal = baseIdentification.IsLocal();
// The check if it is a new Database must be executed before object
// writer initialization. Because Object Writer Init
// Creates the file so the check (which is based on the file existence
// would always return false*/
bool isNewDatabase = IsNewDatabase();
commitListeners = new OdbArrayList<ICommitListener>();
classIntrospector = provider.GetClassIntrospector();
ISession session = BuildDefaultSession();
// Object Writer must be created before object Reader
objectWriter = BuildObjectWriter();
// Object writer is a two Phase init object
objectWriter.Init2();
objectReader = BuildObjectReader();
AddSession(session, false);
// If the file does not exist, then a default header must be created
if (isNewDatabase)
{
objectWriter.CreateEmptyDatabaseHeader(OdbTime.GetCurrentTimeInMs(), baseIdentification.GetUserName(), baseIdentification.GetPassword());
}
else
{
try
{
GetObjectReader().ReadDatabaseHeader(baseIdentification.GetUserName(), baseIdentification.GetPassword());
}
catch (ODBAuthenticationRuntimeException e)
{
Close();
throw;
}
}
objectWriter.AfterInit();
objectIntrospector = BuildObjectIntrospector();
this.triggerManager = BuildTriggerManager();
// This forces the initialization of the meta model
MetaModel metaModel = GetMetaModel();
if (OdbConfiguration.CheckModelCompatibility())
{
CheckMetaModelCompatibility(classIntrospector.Instrospect(metaModel.GetAllClasses()));
}
// logically locks access to the file (only for this Virtual machine)
FileMutex.GetInstance().OpenFile(GetStorageDeviceName());
// Updates the Transaction Id in the file
objectWriter.WriteLastTransactionId(GetCurrentTransactionId());
this.objectWriter.SetTriggerManager(this.triggerManager);
this.introspectionCallbackForInsert = new DefaultInstrumentationCallbackForStore(this, triggerManager, false);
this.introspectionCallbackForUpdate = new DefaultInstrumentationCallbackForStore(this, triggerManager, true);
}
public override void Close()
{
if (isClosed)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbIsClosed
.AddParameter(baseIdentification.GetIdentification()));
}
// When not local (client server) session can be null
NeoDatis.Odb.Core.Transaction.ISession lsession = GetSession(isLocal);
if (baseIdentification.CanWrite())
{
objectWriter.WriteLastODBCloseStatus(true, false);
}
objectWriter.Flush();
if (isLocal && lsession.TransactionIsPending())
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.TransactionIsPending
.AddParameter(lsession.GetId()));
}
isClosed = true;
objectReader.Close();
objectWriter.Close();
// Logically release this file (only for this virtual machine)
NeoDatis.Odb.Impl.Core.Layers.Layer3.Engine.FileMutex.GetInstance().ReleaseFile(GetStorageDeviceName
());
if (lsession != null)
{
lsession.Close();
}
if (objectIntrospector != null)
{
objectIntrospector.Clear();
objectIntrospector = null;
}
// remove trigger manager
provider.RemoveLocalTriggerManager(this);
}
