public override void Dispose() { base.Dispose(); if (_queryInfo != null) { _queryInfo.Dispose(); _queryInfo = null; } if (_stream != null) { _stream.Free(); _stream = null; } if (_connection != null) { try { _connection.Close(); } catch { } _connection = null; } }
public SdeFeatureCursor(SdeDataset dataset, ITableClass tc, IQueryFilter filter) : base((tc is IFeatureClass) && ((IFeatureClass)tc).SpatialReference != null ? ((IFeatureClass)tc).SpatialReference : filter.ContextLayerDefaultSpatialReference, (filter != null) ? filter.FeatureSpatialReference : null) { try { if (filter != null && !filter.SubFields.Contains("*")) { filter.AddField(tc.IDFieldName, false); } filter.fieldPrefix = tc.Name + "."; filter.fieldPostfix = ""; if (filter is ISpatialFilter && (((ISpatialFilter)filter).SpatialRelation != spatialRelation.SpatialRelationMapEnvelopeIntersects)) { if (tc is IFeatureClass) { filter.AddField(((IFeatureClass)tc).ShapeFieldName); } _spatialFilter = (ISpatialFilter)filter; } Int32 err_no = 0; _dataset = dataset; if (_dataset == null) { return; } //_connection = _dataset.AllocConnection(); _connection = new ArcSdeConnection(dataset.ConnectionString); if (!_connection.Open(this._dataset)) { return; } _queryInfo = new SdeQueryInfo(_connection, tc, filter); if (_queryInfo.ErrorMessage != "") { Dispose(); return; } //if (Wrapper10.SE_stream_create(_connection.SeConnection, ref _stream) != 0) //{ // Dispose(); // return; //} //_connection.ResetStream(); _stream = _connection.CreateStream(); // SE_stream_set_state sollte auch aufgerufen werden (siehe mapsde.c von UMN) if (Wrapper10.SE_stream_set_state( _stream.SeStream, CONST.SE_DEFAULT_STATE_ID, CONST.SE_DEFAULT_STATE_ID, CONST.SE_STATE_DIFF_NOCHECK) != 0) { Dispose(); return; } if ((err_no = Wrapper10.SE_stream_query_with_info(_stream.SeStream, _queryInfo.SeQueryInfo)) != 0) { Dispose(); return; } if (_queryInfo.IsSpatial) { SE_FILTER se_filter = _queryInfo.Filter_Shape; if ((err_no = Wrapper10.SE_stream_set_spatial_constraints(_stream.SeStream, CONST.SE_SPATIAL_FIRST, false, 1, ref se_filter)) != 0) { _errMsg = Wrapper10.GetErrorMsg(_connection.SeConnection, err_no); Dispose(); return; } } else { /* * SE_FILTER se_filter = _queryInfo.Filter_Id; * if (Wrapper10.SE_stream_set_spatial_constraints(_stream, CONST.SE_SPATIAL_FIRST, false, 1, ref se_filter) != 0) * { * Release(); * return; * } * */ } if (Wrapper10.SE_stream_execute(_stream.SeStream) != 0) { Dispose(); return; } _queryFields = _queryInfo.QueryFields; _queryInfo.Dispose(); _queryInfo = null; } catch (Exception ex) { _errMsg = ex.Message + "\n" + ex.StackTrace; Dispose(); } }