/// <summary>
/// Invoked when disposing or finalizing this instance.
/// </summary>
/// <param name="disposing">True if the object is being disposed, false otherwise.</param>
protected override void OnDispose(bool disposing)
{
try { if (_Command != null)
{
_Command.Dispose();
}
}
catch { }
_Command = null;
base.OnDispose(disposing);
}
/// <summary>
/// Invoked to execute this operation.
/// </summary>
internal void OnExecute(object origin = null)
{
lock (Repository.MasterLock)
{
List <object> list = null;
ChangeEntry change = null;
IDeleteCommand cmd = null;
DebugEx.IndentWriteLine("\n- Preparing 'Delete({0})'...", MetaEntity);
try
{
list = MetaEntity.GetRemovedChilds(forgetRemoved: true);
foreach (var obj in list)
{
if (obj == null)
{
continue;
}
if (object.ReferenceEquals(obj, origin))
{
continue;
}
var type = obj.GetType(); if (!type.IsClass && !type.IsInterface)
{
continue;
}
var meta = MetaEntity.Locate(obj);
var map = meta.UberMap ?? Repository.LocateUberMap(type);
if (map == null)
{
throw new NotFoundException("Cannot find map for type '{0}'.".FormatWith(type.EasyName()));
}
var op = map.Delete(obj);
try { ((IUberOperation)op).OnExecute(origin: Entity); }
finally { op.Dispose(); }
}
list.Clear(); list = null;
list = MetaEntity.GetDependencies(Map, MemberDependencyMode.Child);
foreach (var obj in list)
{
if (obj == null)
{
continue;
}
if (object.ReferenceEquals(obj, origin))
{
continue;
}
var type = obj.GetType(); if (!type.IsClass && !type.IsInterface)
{
continue;
}
var meta = MetaEntity.Locate(obj);
var map = meta.UberMap ?? Repository.LocateUberMap(type);
if (map == null)
{
throw new NotFoundException("Cannot find map for type '{0}'.".FormatWith(type.EasyName()));
}
var op = map.Delete(obj);
try { ((IUberOperation)op).OnExecute(origin: Entity); }
finally { op.Dispose(); }
}
list.Clear(); list = null;
cmd = Map.GenerateDeleteCommand(Entity);
if (cmd != null)
{
DebugEx.IndentWriteLine("\n- Executing '{0}'...", cmd);
try
{
MetaEntity.ValidateRowVersion();
int n = cmd.Execute();
}
finally { DebugEx.Unindent(); }
}
Map.Detach(Entity);
change = new ChangeEntry(ChangeType.Delete, Map, Entity);
Repository.ChangeEntries.Add(change);
list = MetaEntity.GetDependencies(Map, MemberDependencyMode.Parent);
foreach (var obj in list)
{
if (obj == null)
{
continue;
}
if (object.ReferenceEquals(obj, origin))
{
continue;
}
var type = obj.GetType(); if (!type.IsClass && !type.IsInterface)
{
continue;
}
var meta = MetaEntity.Locate(obj);
var map = meta.UberMap ?? Repository.LocateUberMap(type);
if (map == null)
{
throw new NotFoundException("Cannot find map for type '{0}'.".FormatWith(type.EasyName()));
}
change = new ChangeEntry(ChangeType.Refresh, map, obj);
Repository.ChangeEntries.Add(change);
}
}
finally
{
if (cmd != null)
{
cmd.Dispose();
}
cmd = null;
if (list != null)
{
list.Clear();
}
list = null;
DebugEx.Unindent();
}
}
}
