| /* |
| * Copyright (C) 2012 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. |
| * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY GOOGLE 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_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_ |
| #define THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_ |
| |
| #include "base/memory/scoped_refptr.h" |
| #include "third_party/blink/renderer/modules/indexeddb/idb_key_path.h" |
| #include "third_party/blink/renderer/platform/wtf/allocator.h" |
| #include "third_party/blink/renderer/platform/wtf/hash_map.h" |
| #include "third_party/blink/renderer/platform/wtf/ref_counted.h" |
| #include "third_party/blink/renderer/platform/wtf/text/string_hash.h" |
| #include "third_party/blink/renderer/platform/wtf/text/wtf_string.h" |
| |
| namespace blink { |
| |
| // The lifecycle of the IndexedDB metadata objects defined below is managed by |
| // reference counting (RefPtr). We don't have to worry about cycles because |
| // these objects form a tree with the hierarchy shown below. |
| // IDBDatabaseMetadata -> IDBObjectStoreMetadata -> IDBIndexMetadata |
| |
| class IDBIndexMetadata : public RefCounted<IDBIndexMetadata> { |
| USING_FAST_MALLOC(IDBIndexMetadata); |
| |
| public: |
| static constexpr int64_t kInvalidId = -1; |
| |
| IDBIndexMetadata(); |
| IDBIndexMetadata(const String& name, |
| int64_t id, |
| const IDBKeyPath&, |
| bool unique, |
| bool multi_entry); |
| |
| static scoped_refptr<IDBIndexMetadata> Create(); |
| |
| String name; |
| int64_t id; |
| IDBKeyPath key_path; |
| bool unique; |
| bool multi_entry; |
| }; |
| |
| class MODULES_EXPORT IDBObjectStoreMetadata |
| : public RefCounted<IDBObjectStoreMetadata> { |
| USING_FAST_MALLOC(IDBObjectStoreMetadata); |
| |
| public: |
| static constexpr int64_t kInvalidId = -1; |
| |
| IDBObjectStoreMetadata(); |
| IDBObjectStoreMetadata(const String& name, |
| int64_t id, |
| const IDBKeyPath&, |
| bool auto_increment, |
| int64_t max_index_id); |
| |
| static scoped_refptr<IDBObjectStoreMetadata> Create(); |
| |
| // Creates a deep copy of the object metadata, which includes copies of index |
| // metadata items. |
| scoped_refptr<IDBObjectStoreMetadata> CreateCopy() const; |
| |
| String name; |
| int64_t id; |
| IDBKeyPath key_path; |
| bool auto_increment; |
| int64_t max_index_id; |
| HashMap<int64_t, scoped_refptr<IDBIndexMetadata>> indexes; |
| }; |
| |
| struct MODULES_EXPORT IDBDatabaseMetadata { |
| DISALLOW_NEW(); |
| |
| // FIXME: These can probably be collapsed into 0. |
| enum { kNoVersion = -1, kDefaultVersion = 0 }; |
| |
| IDBDatabaseMetadata(); |
| IDBDatabaseMetadata(const String& name, |
| int64_t id, |
| int64_t version, |
| int64_t max_object_store_id); |
| |
| // Overwrites the database metadata, but does not change the object store and |
| // index metadata. |
| void CopyFrom(const IDBDatabaseMetadata&); |
| |
| String name; |
| int64_t id; |
| int64_t version; |
| int64_t max_object_store_id; |
| HashMap<int64_t, scoped_refptr<IDBObjectStoreMetadata>> object_stores; |
| }; |
| |
| } // namespace blink |
| |
| #endif // THIRD_PARTY_BLINK_RENDERER_MODULES_INDEXEDDB_IDB_METADATA_H_ |