public virtual object BuildOneInstance(NonNativeObjectInfo objectInfo)
{
ICache cache = GetSession().GetCache();
// verify if the object is check to delete
if (objectInfo.IsDeletedObject())
{
throw new ODBRuntimeException(NeoDatisError.ObjectIsMarkedAsDeletedForOid.AddParameter(objectInfo.GetOid()));
}
// Then check if object is in cache
object o = cache.GetObjectWithOid(objectInfo.GetOid());
if (o != null)
{
return(o);
}
Type instanceClazz = null;
instanceClazz = classPool.GetClass(objectInfo.GetClassInfo().GetFullClassName());
try
{
o = classIntrospector.NewInstanceOf(instanceClazz);
}
catch (System.Exception e)
{
throw new ODBRuntimeException(NeoDatisError.InstanciationError.AddParameter(objectInfo.GetClassInfo().GetFullClassName()), e);
}
// This can happen if ODB can not create the instance
// TODO Check if returning null is correct
if (o == null)
{
return(null);
}
// Keep the initial hash code. In some cases, when the class redefines
// the hash code method
// Hash code can return wrong values when attributes are not set (when
// hash code depends on attribute values)
// Hash codes are used as the key of the map,
// So at the end of this method, if hash codes are different, object
// will be removed from the cache and inserted back
bool hashCodeIsOk = true;
int initialHashCode = 0;
try
{
initialHashCode = o.GetHashCode();
}
catch (System.Exception)
{
hashCodeIsOk = false;
}
// Adds this incomplete instance in the cache to manage cyclic reference
if (hashCodeIsOk)
{
cache.AddObject(objectInfo.GetOid(), o, objectInfo.GetHeader());
}
ClassInfo ci = objectInfo.GetClassInfo();
IOdbList <FieldInfo> fields = classIntrospector.GetAllFields(ci.GetFullClassName());
FieldInfo field = null;
AbstractObjectInfo aoi = null;
object value = null;
for (int i = 0; i < fields.Count; i++)
{
field = fields[i];
// Gets the id of this field
int attributeId = ci.GetAttributeId(field.Name);
if (OdbConfiguration.IsDebugEnabled(LogIdDebug))
{
DLogger.Debug("getting field with name " + field.Name + ", attribute id is " + attributeId);
}
aoi = objectInfo.GetAttributeValueFromId(attributeId);
// Check consistency
// ensureClassCompatibily(field,
// instanceInfo.getClassInfo().getAttributeinfo(i).getFullClassname());
if (aoi != null && (!aoi.IsNull()))
{
if (aoi.IsNative())
{
if (aoi.IsAtomicNativeObject())
{
if (aoi.IsNull())
{
value = null;
}
else
{
value = aoi.GetObject();
}
}
if (aoi.IsCollectionObject())
{
value = BuildCollectionInstance((CollectionObjectInfo)aoi);
// Manage a specific case of Set
/*
* if (typeof(Java.Util.Set).IsAssignableFrom(field.GetType()) && typeof(ICollection).IsAssignableFrom(value.GetType()))
* {
* Java.Util.Set s = new Java.Util.HashSet();
* s.AddAll((System.Collections.ICollection)value);
* value = s;
* }*/
}
if (aoi.IsArrayObject())
{
value = BuildArrayInstance((ArrayObjectInfo)aoi);
}
if (aoi.IsMapObject())
{
value = BuildMapInstance((MapObjectInfo)aoi);
}
if (aoi.IsEnumObject())
{
value = BuildEnumInstance((EnumNativeObjectInfo)aoi, field.FieldType);
}
}
else
{
if (aoi.IsNonNativeObject())
{
if (aoi.IsDeletedObject())
{
if (NeoDatis.Odb.OdbConfiguration.DisplayWarnings())
{
IError warning = NeoDatisError.AttributeReferencesADeletedObject
.AddParameter(objectInfo.GetClassInfo().GetFullClassName())
.AddParameter(objectInfo.GetOid()).AddParameter(field.Name);
DLogger.Info(warning.ToString());
}
value = null;
}
else
{
value = BuildOneInstance((NonNativeObjectInfo)aoi);
}
}
}
if (value != null)
{
if (OdbConfiguration.IsDebugEnabled(LogIdDebug))
{
DLogger.Debug("Setting field " + field.Name + "(" + field.GetType().FullName + ") to " + value + " / " + value.GetType().FullName);
}
try
{
field.SetValue(o, value);
}
catch (System.Exception e)
{
throw new ODBRuntimeException(NeoDatisError.InstanceBuilderWrongObjectContainerType
.AddParameter(objectInfo.GetClassInfo().GetFullClassName())
.AddParameter(value.GetType().FullName).AddParameter(field.GetType().FullName), e);
}
}
}
}
if (o != null && !OdbClassUtil.GetFullName(o.GetType()).Equals(objectInfo.GetClassInfo().GetFullClassName()))
{
new ODBRuntimeException(NeoDatisError.InstanceBuilderWrongObjectType
.AddParameter(objectInfo.GetClassInfo().GetFullClassName())
.AddParameter(o.GetType().FullName));
}
if (hashCodeIsOk || initialHashCode != o.GetHashCode())
{
// Bug (sf bug id=1875544 )detected by glsender
// This can happen when an object has redefined its own hashcode
// method and depends on the field values
// Then, we have to remove object from the cache and re-insert to
// correct map hash code
cache.RemoveObjectWithOid(objectInfo.GetOid());
// re-Adds instance in the cache
cache.AddObject(objectInfo.GetOid(), o, objectInfo.GetHeader());
}
if (triggerManager != null)
{
triggerManager.ManageSelectTriggerAfter(objectInfo.GetClassInfo().GetFullClassName
(), objectInfo, objectInfo.GetOid());
}
if (OdbConfiguration.ReconnectObjectsToSession())
{
ICrossSessionCache crossSessionCache = CacheFactory.GetCrossSessionCache(engine.GetBaseIdentification().GetIdentification());
crossSessionCache.AddObject(o, objectInfo.GetOid());
}
return(o);
}
private bool HasChanged(NonNativeObjectInfo nnoi1, NonNativeObjectInfo nnoi2, int objectRecursionLevel)
{
AbstractObjectInfo value1 = null;
AbstractObjectInfo value2 = null;
bool hasChanged = false;
// If the object is already being checked, return false, this second
// check will not affect the check
int n = 0;
alreadyCheckingObjects.TryGetValue(nnoi2, out n);
if (n != 0)
{
return(false);
}
// Put the object in the temporary cache
alreadyCheckingObjects[nnoi1] = 1;
alreadyCheckingObjects[nnoi2] = 1;
// Warning ID Start with 1 and not 0
for (int id = 1; id <= nnoi1.GetMaxNbattributes(); id++)
{
value1 = nnoi1.GetAttributeValueFromId(id);
// Gets the value by the attribute id to be sure
// Problem because a new object info may not have the right ids ?
// Check if
// the new oiD is ok.
value2 = nnoi2.GetAttributeValueFromId(id);
if (value2 == null)
{
// this means the object to have attribute id
StoreChangedObject(nnoi1, nnoi2, id, objectRecursionLevel);
hasChanged = true;
continue;
}
if (value1 == null)
{
//throw new ODBRuntimeException("ObjectInfoComparator.hasChanged:attribute with id "+id+" does not exist on "+nnoi2);
// This happens when this object was created with an version of ClassInfo (which has been refactored).
// In this case,we simply tell that in place update is not supported so that the object will be rewritten with
// new metamodel
supportInPlaceUpdate = false;
continue;
}
// If both are null, no effect
if (value1.IsNull() && value2.IsNull())
{
continue;
}
if (value1.IsNull() || value2.IsNull())
{
supportInPlaceUpdate = false;
hasChanged = true;
StoreActionSetAttributetoNull(nnoi1, id, objectRecursionLevel);
continue;
}
if (!ClassAreCompatible(value1, value2))
{
if (value2 is NativeObjectInfo)
{
StoreChangedObject(nnoi1, nnoi2, id, objectRecursionLevel);
StoreChangedAttributeAction(new ChangedNativeAttributeAction
(nnoi1, nnoi2, nnoi1.GetHeader().GetAttributeIdentificationFromId(id), (NativeObjectInfo
)value2, objectRecursionLevel, false, nnoi1.GetClassInfo().GetAttributeInfoFromId
(id).GetName()));
}
if (value2 is ObjectReference)
{
NonNativeObjectInfo nnoi = (NonNativeObjectInfo
)value1;
ObjectReference oref = (ObjectReference
)value2;
if (!nnoi.GetOid().Equals(oref.GetOid()))
{
StoreChangedObject(nnoi1, nnoi2, id, objectRecursionLevel);
int attributeIdThatHasChanged = id;
// this is the exact position where the object reference
// definition is stored
long attributeDefinitionPosition = nnoi2.GetAttributeDefinitionPosition(attributeIdThatHasChanged
);
StoreChangedAttributeAction(new ChangedObjectReferenceAttributeAction
(attributeDefinitionPosition, (ObjectReference
)value2, objectRecursionLevel));
}
else
{
continue;
}
}
hasChanged = true;
continue;
}
if (value1.IsAtomicNativeObject())
{
if (!value1.Equals(value2))
{
// storeChangedObject(nnoi1, nnoi2, id,
// objectRecursionLevel);
StoreChangedAttributeAction(new ChangedNativeAttributeAction
(nnoi1, nnoi2, nnoi1.GetHeader().GetAttributeIdentificationFromId(id), (NativeObjectInfo
)value2, objectRecursionLevel, false, nnoi1.GetClassInfo().GetAttributeInfoFromId
(id).GetName()));
hasChanged = true;
continue;
}
continue;
}
if (value1.IsCollectionObject())
{
CollectionObjectInfo coi1 = (CollectionObjectInfo)value1;
CollectionObjectInfo coi2 = (CollectionObjectInfo)value2;
bool collectionHasChanged = ManageCollectionChanges(nnoi1, nnoi2, id, coi1, coi2, objectRecursionLevel);
hasChanged = hasChanged || collectionHasChanged;
continue;
}
if (value1.IsArrayObject())
{
ArrayObjectInfo aoi1 = (ArrayObjectInfo)value1;
ArrayObjectInfo aoi2 = (ArrayObjectInfo)value2;
bool arrayHasChanged = ManageArrayChanges(nnoi1, nnoi2, id, aoi1, aoi2, objectRecursionLevel
);
hasChanged = hasChanged || arrayHasChanged;
continue;
}
if (value1.IsMapObject())
{
MapObjectInfo moi1 = (MapObjectInfo)value1;
MapObjectInfo moi2 = (MapObjectInfo)value2;
bool mapHasChanged = ManageMapChanges(nnoi1, nnoi2, id, moi1, moi2, objectRecursionLevel
);
hasChanged = hasChanged || mapHasChanged;
continue;
}
if (value1.IsEnumObject())
{
EnumNativeObjectInfo enoi1 = (EnumNativeObjectInfo)value1;
EnumNativeObjectInfo enoi2 = (EnumNativeObjectInfo)value2;
bool enumHasChanged = !enoi1.GetEnumClassInfo().GetId().Equals(enoi2.GetEnumClassInfo
().GetId()) || !enoi1.GetEnumName().Equals(enoi2.GetEnumName());
hasChanged = hasChanged || enumHasChanged;
continue;
}
if (value1.IsNonNativeObject())
{
NonNativeObjectInfo oi1 = (NonNativeObjectInfo)value1;
NonNativeObjectInfo oi2 = (NonNativeObjectInfo)value2;
// If oids are equal, they are the same objects
if (oi1.GetOid() != null && oi1.GetOid().Equals(oi2.GetOid()))
{
hasChanged = HasChanged(value1, value2, objectRecursionLevel + 1) || hasChanged;
}
else
{
// This means that an object reference has changed.
hasChanged = true;
// keep track of the position where the reference must be
// updated
long positionToUpdateReference = nnoi1.GetAttributeDefinitionPosition(id);
StoreNewObjectReference(positionToUpdateReference, oi2, objectRecursionLevel, nnoi1
.GetClassInfo().GetAttributeInfoFromId(id).GetName());
objectRecursionLevel++;
// Value2 may have change too
AddPendingVerification(value2);
}
continue;
}
}
int i1 = (int)alreadyCheckingObjects[nnoi1];
int i2 = (int)alreadyCheckingObjects[nnoi2];
if (i1 != null)
{
i1 = i1 - 1;
}
if (i2 != null)
{
i2 = i2 - 1;
}
if (i1 == 0)
{
alreadyCheckingObjects.Remove(nnoi1);
}
else
{
alreadyCheckingObjects.Add(nnoi1, i1);
}
if (i2 == 0)
{
alreadyCheckingObjects.Remove(nnoi2);
}
else
{
alreadyCheckingObjects.Add(nnoi2, i2);
}
return(hasChanged);
}
