private bool ResolveProductConflict(ObjectChangeConflict conflict)
{
Product current = (Product)conflict.Object;
if (conflict.IsDeleted)
{
// we don't attempt to resolve delete conflicts -
// we send those back to the client
return(false);
}
switch (current.ResolveMethod)
{
case "ThrowValidationEx":
throw new ValidationException("testing");
case "ThrowDomainServiceEx":
throw new DomainException("testing");
case "MergeIntoCurrent":
conflict.Resolve(RefreshMode.KeepChanges);
break;
case "KeepCurrent":
conflict.Resolve(RefreshMode.KeepCurrentValues);
break;
case "RefreshCurrent":
conflict.Resolve(RefreshMode.OverwriteCurrentValues);
break;
case "ReturnTrueNoResolve":
return(true);
case "ReturnFalse":
return(false);
case "ReturnFalseWithResolve":
conflict.Resolve(RefreshMode.OverwriteCurrentValues);
return(false);
case "":
conflict.Resolve(RefreshMode.KeepCurrentValues);
break;
default:
{
throw new NotImplementedException(string.Format("ResolveMethod {0} is not defined", current.ResolveMethod));
}
}
return(conflict.IsResolved);
}
/// <summary>
/// Updates each entry in the ChangeSet with its corresponding conflict info.
/// </summary>
/// <param name="operationConflictMap">Map of conflicts to their corresponding operations entries.</param>
private void SetChangeSetConflicts(Dictionary <ObjectChangeConflict, ChangeSetEntry> operationConflictMap)
{
foreach (var conflictEntry in operationConflictMap)
{
ObjectChangeConflict occ = conflictEntry.Key;
ChangeSetEntry operationInConflict = conflictEntry.Value;
PropertyDescriptorCollection properties = null;
// only create a StoreEntity if the object in conflict is not deleted in the store
if (!occ.IsDeleted)
{
// Calling GetOriginalEntityState will create a copy of the original
// object for us
ITable table = this.DataContext.GetTable(occ.Object.GetType());
operationInConflict.StoreEntity = table.GetOriginalEntityState(occ.Object);
properties = TypeDescriptor.GetProperties(operationInConflict.StoreEntity);
string[] propertyNamesInConflict = new string[occ.MemberConflicts.Count];
for (int i = 0; i < occ.MemberConflicts.Count; i++)
{
MemberChangeConflict mcc = occ.MemberConflicts[i];
string propertyName = mcc.Member.Name;
// Store the members that are in conflict.
propertyNamesInConflict[i] = propertyName;
Debug.Assert(properties[propertyName] != null, "Expected to find property.");
// if the entity is not deleted in the store, also let the client know what the store state is.
properties[propertyName].SetValue(operationInConflict.StoreEntity, mcc.DatabaseValue);
}
operationInConflict.ConflictMembers = propertyNamesInConflict;
}
else
{
operationInConflict.IsDeleteConflict = true;
}
}
}
