64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* -*- Mode: C; indent-tabs-mode: nil; -*-
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*
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is the TripleDB database library.
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*
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* The Initial Developer of the Original Code is Geocast Network Systems.
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* Portions created by Geocast are
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* Copyright (C) 2000 Geocast Network Systems. All
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* Rights Reserved.
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*
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* Contributor(s): Terry Weissman <terry@mozilla.org>
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*/
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#ifndef _cursor_h_
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#define _cursor_h_ 1
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extern TDBCursor* tdbCursorNew(TDB* tdb, TDBRType* indextype,
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TDBNodePtr* triple,
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TDBBool includefalse, TDBBool reverse);
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extern TDBCursor* tdbCursorNewWordSubstring(TDB* tdb, const char* string);
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extern TDBCursor* tdbCursorNewImpl(TDB* tdb, void* implcursor);
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extern void tdbCursorFree(TDBCursor* cursor);
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extern TDB* tdbCursorGetTDB(TDBCursor* cursor);
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extern TDBBase* tdbCursorGetBase(TDBCursor* cursor);
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extern void* tdbCursorGetImplcursor(TDBCursor* cursor);
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/* tdbCursorGetNext() returns the next matching item for this cursor. The
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returned vector is owned by the cursor object, and must not be freed or
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modified. */
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extern TDBVector* tdbCursorGetNext(TDBCursor* cursor);
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/* tdbCursorGetLastResultAsTriple() is a hack that returns the
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last result as a TDBTriple*, to help us implement our published API
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(which has drifted a bit from our internal implementation.) */
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extern TDBTriple* tdbCursorGetLastResultAsTriple(TDBCursor* cursor);
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/* tdbCursorInvalidateCache() causes all cursors to invalidate any
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information about the tree that they may have cached. This is called when
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a change is going to be made to the tree structure. */
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extern TDBStatus tdbCursorInvalidateCache(TDB* tdb);
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#endif /* _cursor_h_ */
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