<!--$Id: txn_abort.html,v 1.1.1.1 2003/02/15 04:55:54 zarzycki Exp $--> <!--Copyright 1997-2002 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DbTxn.abort</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++"> </head> <body bgcolor=white> <a name="2"><!--meow--></a> <table width="100%"><tr valign=top> <td> <h1>DbTxn.abort</h1> </td> <td align=right> <a href="../api_java/c_index.html"><img src="../images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> import com.sleepycat.db.*; <p> public void abort() throws DbException; </pre></h3> <h1>Description</h1> <p>The DbTxn.abort method causes an abnormal termination of the transaction. The log is played backward, and any necessary recovery operations are initiated through the <b>recover</b> function specified to <a href="../api_java/env_open.html">DbEnv.open</a>. After the log processing is completed, all locks held by the transaction are released. As is the case for <a href="../api_java/txn_commit.html">DbTxn.commit</a>, applications that require strict two-phase locking should not explicitly release any locks. <p>In the case of nested transactions, aborting a parent transaction causes all children (unresolved or not) of the parent transaction to be aborted. <p>All cursors opened within the transaction must be closed before the transaction is aborted. <p>After DbTxn.abort has been called, regardless of its return, the <a href="../api_java/txn_class.html">DbTxn</a> handle may not be accessed again. <p>The DbTxn.abort method throws an exception that encapsulates a non-zero error value on failure. <h1>Errors</h1> <p>The DbTxn.abort method may fail and throw an exception for errors specified for other Berkeley DB and C library or system methods. If a catastrophic error has occurred, the DbTxn.abort method may fail and throw a <a href="../api_java/runrec_class.html">DbRunRecoveryException</a>, in which case all subsequent Berkeley DB calls will fail in the same way. <h1>Class</h1> <a href="../api_java/env_class.html">DbEnv</a>, <a href="../api_java/txn_class.html">DbTxn</a> <h1>See Also</h1> <a href="../api_java/txn_list.html">Transaction Subsystem and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../api_java/c_index.html"><img src="../images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font> </body> </html>