public void Dispose(bool disposing)
{
if (!_disposed)
{
// If disposing equals true, dispose all managed
// and unmanaged resources.
if (disposing)
{
//managed resources
}
//unmanaged, mostly esent related
if (_currentTransaction != null) //we have terminated unexpectedly, the database may be corrupt
{
_currentTransaction.Dispose();
_currentTransaction = null;
}
if (_shapeGeometryCursor != null)
{
_esentModel.FreeTable(_shapeGeometryCursor);
}
if (_shapeInstanceCursor != null)
{
_esentModel.FreeTable(_shapeInstanceCursor);
}
}
_disposed = true;
}
internal void EndInit(IGeometryStoreInitialiser transaction)
{
//update the reference counts
if (transaction == _currentTransaction)
{
_currentTransaction.UpdateReferenceCounts();
_currentTransaction.Commit();
_currentTransaction.Dispose();
_currentTransaction = null;
}
else
{
throw new ArgumentException("The transaction is not the one that is currently running", "transaction");
}
}
public IGeometryStoreInitialiser BeginInit()
{
try
{
if (_currentTransaction == null) //we can start a new one
{
//dispose of any tables because we are going to clear them
if (_shapeGeometryCursor != null)
{
_shapeGeometryCursor.Dispose();
_shapeGeometryCursor = null;
}
if (_shapeInstanceCursor != null)
{
_shapeInstanceCursor.Dispose();
_shapeInstanceCursor = null;
}
//delete any geometries in the database
_esentModel.ClearGeometryTables();
_shapeGeometryCursor = _esentModel.GetShapeGeometryTable();
_shapeInstanceCursor = _esentModel.GetShapeInstanceTable();
_currentTransaction = new EsentGeometryInitialiser(this, _shapeGeometryCursor, _shapeInstanceCursor);
return(_currentTransaction);
}
throw new Exception("A transaction is in operation on the geometry store");
}
catch (Exception e)
{
if (_shapeGeometryCursor != null)
{
_esentModel.FreeTable(_shapeGeometryCursor);
}
if (_shapeInstanceCursor != null)
{
_esentModel.FreeTable(_shapeInstanceCursor);
}
_currentTransaction = null;
throw new Exception("Begin initialisation failed on Geometry Store", e);
}
}
