public override NeoDatis.Odb.OID GetObjectId(object @object, bool throwExceptionIfDoesNotExist
)
{
NeoDatis.Odb.OID oid = null;
if (@object != null)
{
oid = GetSession(true).GetCache().GetOid(@object, false);
// If cross cache session is on, just check if current object has the OID on the cache
if (oid == null && NeoDatis.Odb.OdbConfiguration.ReconnectObjectsToSession())
{
NeoDatis.Odb.Core.Transaction.ICrossSessionCache cache = NeoDatis.Odb.Impl.Core.Transaction.CacheFactory
.GetCrossSessionCache(GetBaseIdentification().GetIdentification());
oid = cache.GetOid(@object);
if (oid != null)
{
return(oid);
}
}
oid = GetSession(true).GetCache().GetOid(@object, false);
if (oid == null && throwExceptionIfDoesNotExist)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.UnknownObjectToGetOid
.AddParameter(@object.ToString()));
}
return(oid);
}
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbCanNotReturnOidOfNullObject
);
}
public static void ClearAll()
{
System.Collections.Generic.IEnumerator <string> names = instances.Keys.GetEnumerator
();
while (names.MoveNext())
{
string name = names.Current;
NeoDatis.Odb.Core.Transaction.ICrossSessionCache cache = instances[name];
cache.Clear();
}
instances.Clear();
}
/// <summary>Actually deletes an object database</summary>
public override NeoDatis.Odb.OID Delete(object @object)
{
NeoDatis.Odb.Core.Transaction.ISession lsession = GetSession(true);
if (lsession.IsRollbacked())
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbHasBeenRollbacked
.AddParameter(baseIdentification.ToString()));
}
if (@object == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.OdbCanNotDeleteNullObject
);
}
NeoDatis.Odb.Core.Transaction.ICache cache = lsession.GetCache();
bool throwExceptionIfNotInCache = false;
// Get header of the object (position, previous object position, next
// object position and class info position)
// Header must come from cache because it may have been updated before.
NeoDatis.Odb.Core.Layers.Layer2.Meta.ObjectInfoHeader header = cache.GetObjectInfoHeaderFromObject
(@object, throwExceptionIfNotInCache);
if (header == null)
{
NeoDatis.Odb.OID cachedOid = cache.GetOid(@object, false);
//reconnect object is turn on tries to get object from cross session
if (cachedOid == null && NeoDatis.Odb.OdbConfiguration.ReconnectObjectsToSession(
))
{
NeoDatis.Odb.Core.Transaction.ICrossSessionCache crossSessionCache = NeoDatis.Odb.Impl.Core.Transaction.CacheFactory
.GetCrossSessionCache(GetBaseIdentification().GetIdentification());
cachedOid = crossSessionCache.GetOid(@object);
}
if (cachedOid == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.ObjectDoesNotExistInCacheForDelete
.AddParameter(@object.GetType().FullName).AddParameter(@object.ToString()));
}
header = objectReader.ReadObjectInfoHeaderFromOid(cachedOid, false);
}
triggerManager.ManageDeleteTriggerBefore(@object.GetType().FullName, @object, header
.GetOid());
NeoDatis.Odb.OID oid = objectWriter.Delete(header);
triggerManager.ManageDeleteTriggerAfter(@object.GetType().FullName, @object, oid);
// removes the object from the cache
cache.RemoveObjectWithOid(header.GetOid());
if (NeoDatis.Odb.OdbConfiguration.ReconnectObjectsToSession())
{
NeoDatis.Odb.Impl.Core.Transaction.CacheFactory.GetCrossSessionCache(GetBaseIdentification
().GetIdentification()).RemoveObject(@object);
}
return(oid);
}
/// <summary>Reconnect an object to the current session.</summary>
/// <remarks>
/// Reconnect an object to the current session. It connects the object and
/// all the dependent objects (Objects accessible from the object graph of the
/// root object
/// </remarks>
public override void Reconnect(object @object)
{
if (@object == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.ReconnectCanReconnectNullObject
);
}
NeoDatis.Odb.Core.Transaction.ICrossSessionCache crossSessionCache = NeoDatis.Odb.Impl.Core.Transaction.CacheFactory
.GetCrossSessionCache(GetBaseIdentification().GetIdentification());
NeoDatis.Odb.OID oid = crossSessionCache.GetOid(@object);
//in some situation the user can control the disconnect and reconnect
//so before throws an exception test if in the current session
//there is the object on the cache
if (oid == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.CrossSessionCacheNullOidForObject
.AddParameter(@object));
}
NeoDatis.Odb.Core.Layers.Layer2.Meta.ObjectInfoHeader oih = objectReader.ReadObjectInfoHeaderFromOid
(oid, false);
GetSession(true).AddObjectToCache(oid, @object, oih);
// Retrieve Dependent Objects
NeoDatis.Odb.Impl.Core.Layers.Layer1.Introspector.GetDependentObjectIntrospectingCallback
getObjectsCallback = new NeoDatis.Odb.Impl.Core.Layers.Layer1.Introspector.GetDependentObjectIntrospectingCallback
();
NeoDatis.Odb.Core.Layers.Layer2.Meta.ClassInfo ci = GetSession(true).GetMetaModel
().GetClassInfoFromId(oih.GetClassInfoId());
objectIntrospector.GetMetaRepresentation(@object, ci, true, null, getObjectsCallback
);
System.Collections.Generic.ICollection <object> dependentObjects = getObjectsCallback
.GetObjects();
System.Collections.Generic.IEnumerator <object> iterator = dependentObjects.GetEnumerator
();
while (iterator.MoveNext())
{
object o = iterator.Current;
if (o != null)
{
oid = crossSessionCache.GetOid(o);
if (oid == null)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Odb.Core.NeoDatisError.CrossSessionCacheNullOidForObject
.AddParameter(o));
}
oih = objectReader.ReadObjectInfoHeaderFromOid(oid, false);
GetSession(true).AddObjectToCache(oid, o, oih);
}
}
}
