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); } } }