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Diffstat (limited to 'db/mork/src/morkUniqRowCursor.h')
-rw-r--r-- | db/mork/src/morkUniqRowCursor.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/db/mork/src/morkUniqRowCursor.h b/db/mork/src/morkUniqRowCursor.h new file mode 100644 index 000000000..44eac9471 --- /dev/null +++ b/db/mork/src/morkUniqRowCursor.h @@ -0,0 +1,94 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef _MORKUNIQROWCURSOR_ +#define _MORKUNIQROWCURSOR_ 1 + +#ifndef _MORK_ +#include "mork.h" +#endif + +#ifndef _MORKCURSOR_ +#include "morkCursor.h" +#endif + +#ifndef _MORKMAP_ +#include "morkMap.h" +#endif + +//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 + +class orkinTableRowCursor; +// #define morkDerived_kUniqRowCursor /*i*/ 0x7352 /* ascii 'sR' */ + +class morkUniqRowCursor : public morkTableRowCursor { // row iterator + +// public: // slots inherited from morkObject (meant to inform only) + // nsIMdbHeap* mNode_Heap; + // mork_able mNode_Mutable; // can this node be modified? + // mork_load mNode_Load; // is this node clean or dirty? + // mork_base mNode_Base; // must equal morkBase_kNode + // mork_derived mNode_Derived; // depends on specific node subclass + // mork_access mNode_Access; // kOpen, kClosing, kShut, or kDead + // mork_usage mNode_Usage; // kHeap, kStack, kMember, kGlobal, kNone + // mork_uses mNode_Uses; // refcount for strong refs + // mork_refs mNode_Refs; // refcount for strong refs + weak refs + + // morkFactory* mObject_Factory; // weak ref to suite factory + + // mork_seed mCursor_Seed; + // mork_pos mCursor_Pos; + // mork_bool mCursor_DoFailOnSeedOutOfSync; + // mork_u1 mCursor_Pad[ 3 ]; // explicitly pad to u4 alignment + + // morkTable* mTableRowCursor_Table; // weak ref to table + +public: // state is public because the entire Mork system is private + +// { ===== begin morkNode interface ===== +public: // morkNode virtual methods + virtual void CloseMorkNode(morkEnv* ev) override; // CloseUniqRowCursor() + virtual ~morkUniqRowCursor(); // assert that close executed earlier + +public: // morkUniqRowCursor construction & destruction + morkUniqRowCursor(morkEnv* ev, const morkUsage& inUsage, + nsIMdbHeap* ioHeap, morkTable* ioTable, mork_pos inRowPos); + void CloseUniqRowCursor(morkEnv* ev); // called by CloseMorkNode(); + +private: // copying is not allowed + morkUniqRowCursor(const morkUniqRowCursor& other); + morkUniqRowCursor& operator=(const morkUniqRowCursor& other); + +public: // dynamic type identification + // mork_bool IsUniqRowCursor() const + // { return IsNode() && mNode_Derived == morkDerived_kUniqRowCursor; } +// } ===== end morkNode methods ===== + +public: // typing + static void NonUniqRowCursorTypeError(morkEnv* ev); + +public: // other search row cursor methods + + virtual mork_bool CanHaveDupRowMembers(morkEnv* ev); + virtual mork_count GetMemberCount(morkEnv* ev); + + virtual orkinTableRowCursor* AcquireUniqueRowCursorHandle(morkEnv* ev); + + // virtual mdb_pos NextRowOid(morkEnv* ev, mdbOid* outOid); + virtual morkRow* NextRow(morkEnv* ev, mdbOid* outOid, mdb_pos* outPos); + +public: // typesafe refcounting inlines calling inherited morkNode methods + static void SlotWeakUniqRowCursor(morkUniqRowCursor* me, + morkEnv* ev, morkUniqRowCursor** ioSlot) + { morkNode::SlotWeakNode((morkNode*) me, ev, (morkNode**) ioSlot); } + + static void SlotStrongUniqRowCursor(morkUniqRowCursor* me, + morkEnv* ev, morkUniqRowCursor** ioSlot) + { morkNode::SlotStrongNode((morkNode*) me, ev, (morkNode**) ioSlot); } +}; + +//3456789_123456789_123456789_123456789_123456789_123456789_123456789_123456789 + +#endif /* _MORKUNIQROWCURSOR_ */ |