| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "ignite/odbc/cursor.h" |
| |
| namespace ignite |
| { |
| namespace odbc |
| { |
| Cursor::Cursor(int64_t queryId) : queryId(queryId), currentPage(), |
| currentPagePos(0), currentRow() |
| { |
| // No-op. |
| } |
| |
| Cursor::~Cursor() |
| { |
| // No-op. |
| } |
| |
| bool Cursor::Increment() |
| { |
| if (currentPage.get() && currentPagePos < currentPage->GetSize()) |
| { |
| ++currentPagePos; |
| |
| if (currentPagePos == currentPage->GetSize()) |
| currentRow.reset(); |
| else |
| { |
| Row *row = currentRow.get(); |
| |
| if (row) |
| row->MoveToNext(); |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| bool Cursor::NeedDataUpdate() const |
| { |
| return !currentPage.get() || (!currentPage->IsLast() && |
| currentPagePos == currentPage->GetSize()); |
| } |
| |
| bool Cursor::HasData() const |
| { |
| return !currentPage.get() || !currentPage->IsLast() || |
| currentPagePos < currentPage->GetSize(); |
| } |
| |
| bool Cursor::IsClosedRemotely() const |
| { |
| return currentPage.get() && currentPage->IsLast(); |
| } |
| |
| void Cursor::UpdateData(std::auto_ptr<ResultPage>& newPage) |
| { |
| currentPage = newPage; |
| |
| currentPagePos = 0; |
| |
| currentRow.reset(new Row(currentPage->GetData())); |
| } |
| |
| Row* Cursor::GetRow() |
| { |
| return currentRow.get(); |
| } |
| } |
| } |
| |