1<!--$Id: txn_abort.so,v 10.39 2004/08/13 03:39:03 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB: DbTxn::abort</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<table width="100%"><tr valign=top> 12<td> 13<b>DbTxn::abort</b> 14</td> 15<td align=right> 16<a href="/api_cxx/api_core.html"><img src="/images/api.gif" alt="API"></a> 17<a href="/ref/toc.html"><img src="/images/ref.gif" alt="Ref"></a></td> 18</tr></table> 19<hr size=1 noshade> 20<tt> 21<b><pre> 22#include <db_cxx.h> 23<p> 24int 25DbTxn::abort(); 26</pre></b> 27<hr size=1 noshade> 28<b>Description: DbTxn::abort</b> 29<p>The DbTxn::abort method causes an abnormal termination of the transaction. 30The log is played backward, and any necessary undo operations are done 31through the <b>tx_recover</b> function specified to 32<a href="/api_cxx/env_set_app_dispatch.html">DbEnv::set_app_dispatch</a>. Before DbTxn::abort returns, any 33locks held by the transaction will have been released.</p> 34<p>In the case of nested transactions, aborting a parent transaction causes 35all children (unresolved or not) of the parent transaction to be aborted.</p> 36<p>All cursors opened within the transaction must be closed before the 37transaction is aborted.</p> 38<p>After DbTxn::abort has been called, regardless of its return, the 39<a href="/api_cxx/txn_class.html">DbTxn</a> handle may not be accessed again.</p> 40<p>The DbTxn::abort method 41either returns a non-zero error value 42or throws an exception that encapsulates a non-zero error value on 43failure, and returns 0 on success. 44</p> 45<hr size=1 noshade> 46<br><b>Class</b> 47<a href="/api_cxx/env_class.html">DbEnv</a>, <a href="/api_cxx/txn_class.html">DbTxn</a> 48<br><b>See Also</b> 49<a href="/api_cxx/txn_list.html">Transaction Subsystem and Related Methods</a> 50</tt> 51<table width="100%"><tr><td><br></td><td align=right> 52<a href="/api_cxx/api_core.html"><img src="/images/api.gif" alt="API"></a><a href="/ref/toc.html"><img src="/images/ref.gif" alt="Ref"></a> 53</td></tr></table> 54<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 55</body> 56</html> 57