81 lines
3.1 KiB
C
81 lines
3.1 KiB
C
/* -*- Mode: C; indent-tabs-mode: nil; -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* 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
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* Geocast Network Systems.
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* Portions created by the Initial Developer are Copyright (C) 2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Terry Weissman <terry@mozilla.org>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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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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