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Diffstat (limited to 'offapi/com/sun/star/sdbc/TransactionIsolation.idl')
-rw-r--r-- | offapi/com/sun/star/sdbc/TransactionIsolation.idl | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/offapi/com/sun/star/sdbc/TransactionIsolation.idl b/offapi/com/sun/star/sdbc/TransactionIsolation.idl new file mode 100644 index 000000000000..426027be9a04 --- /dev/null +++ b/offapi/com/sun/star/sdbc/TransactionIsolation.idl @@ -0,0 +1,85 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ +#ifndef __com_sun_star_sdbc_TransactionIsolation_idl__ +#define __com_sun_star_sdbc_TransactionIsolation_idl__ + + module com { module sun { module star { module sdbc { + + +/** distinguishes different possible transaction isolation levels. + */ +published constants TransactionIsolation +{ + + /** indicates that transactions are not supported. + */ + const long NONE = 0; + + /** Dirty reads, non-repeatable reads and phantom reads can occur. + This level allows a row changed by one transaction to be read + by another transaction before any changes in that row have been + committed (a "dirty read"). If any of the changes are rolled back, + the second transaction will have retrieved an invalid row. + */ + const long READ_UNCOMMITTED = 1; + + /** Dirty reads are prevented; non-repeatable reads and phantom + reads can occur. This level only prohibits a transaction + from reading a row with uncommitted changes in it. + */ + const long READ_COMMITTED = 2; + + /** Dirty reads and non-repeatable reads are prevented; phantom + reads can occur. This level prohibits a transaction from + reading a row with uncommitted changes in it, and it also + prohibits the situation where one transaction reads a row, + a second transaction alters the row, and the first transaction + rereads the row, getting different values the second time + (a "non-repeatable read"). + */ + const long REPEATABLE_READ = 4; + + /** Dirty reads, non-repeatable reads and phantom reads are prevented. + This level includes the prohibitions in + <code>REPEATABLE_READ</code> + and further prohibits the + situation where one transaction reads all rows that satisfy + a WHERE condition, a second transaction inserts a row that + satisfies that WHERE condition, and the first transaction + rereads for the same condition, retrieving the additional + "phantom" row in the second read. + */ + const long SERIALIZABLE = 8; +}; + +//============================================================================= + +}; }; }; }; + +/*=========================================================================== +===========================================================================*/ +#endif |