| /* |
| * Copyright (C) 2010 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #ifndef THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_INDEXEDDB_WEB_IDB_CURSOR_H_ |
| #define THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_INDEXEDDB_WEB_IDB_CURSOR_H_ |
| |
| #include "third_party/blink/public/common/indexeddb/web_idb_types.h" |
| #include "third_party/blink/public/platform/modules/indexeddb/web_idb_callbacks.h" |
| #include "third_party/blink/public/platform/modules/indexeddb/web_idb_key.h" |
| #include "third_party/blink/public/platform/web_common.h" |
| #include "third_party/blink/public/platform/web_string.h" |
| |
| namespace blink { |
| |
| class WebIDBCursor { |
| public: |
| virtual ~WebIDBCursor() = default; |
| |
| // Used to implement IDBCursor.advance(). |
| virtual void Advance(unsigned long count, WebIDBCallbacks*) = 0; |
| |
| // Used to implement IDBCursor.continue() and IDBCursor.continuePrimaryKey(). |
| // |
| // The key and primary key are null when they are not supplied by the |
| // application. When both arguments are null, the cursor advances by one |
| // entry. |
| // |
| // The keys pointed to by WebIDBKeyView are only guaranteed to be alive for |
| // the duration of the call. |
| virtual void Continue(WebIDBKeyView, |
| WebIDBKeyView primary_key, |
| WebIDBCallbacks*) = 0; |
| |
| // Called after a cursor request's success handler is executed. |
| // |
| // This is only used by the cursor prefetching logic, and does not result in |
| // an IPC. |
| virtual void PostSuccessHandlerCallback() = 0; |
| |
| protected: |
| WebIDBCursor() = default; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_PUBLIC_PLATFORM_MODULES_INDEXEDDB_WEB_IDB_CURSOR_H_ |