<!--$Id: env_set_error_stream.so,v 10.15 2001/04/12 18:48:44 bostic Exp $--> <!--Copyright 1997-2001 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <html> <head> <title>Berkeley DB: DbEnv.set_error_stream</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>DbEnv.set_error_stream</h1> </td> <td align=right> <a href="../../db4-devel-4.0.14/api_java/c_index.html"><img src="../../db4-4.0.14/images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../../db4-4.0.14/images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> import com.sleepycat.db.*; <p> public void DbEnv.set_error_stream(OutputStream s) throws DbException </pre></h3> <h1>Description</h1> <p>When an error occurs in the Berkeley DB library, an exception is thrown. In some cases, however, the <b>errno</b> value may be insufficient to completely describe the cause of the error, especially during initial application debugging. <p>The DbEnv.set_error_stream method is used to enhance the mechanism for reporting error messages to the application by setting a OutputStream to be used for displaying additional Berkeley DB error messages. In some cases, when an error occurs, Berkeley DB will output an additional error message to the specified stream. <p>The error message will consist of the prefix string and a colon ("<b>:</b>") (if a prefix string was previously specified using <a href="../../db4-devel-4.0.14/api_java/env_set_errpfx.html">DbEnv.set_errpfx</a>), an error string, and a trailing <newline> character. <p>Alternatively, you can use the <a href="../../db4-devel-4.0.14/api_java/env_set_errcall.html">DbEnv.set_errcall</a> method to capture the additional error information in a way that does not use output streams. You should not mix these approaches. <p>This error-logging enhancement does not slow performance or significantly increase application size, and may be run during normal operation as well as during application debugging. <h1>Class</h1> <a href="../../db4-devel-4.0.14/api_java/dbenv_class.html">DbEnv</a> <h1>See Also</h1> <a href="../../db4-devel-4.0.14/api_java/env_close.html">DbEnv.close</a>, <a href="../../db4-devel-4.0.14/api_java/env_version.html">DbEnv.get_version_string</a>, <a href="../../db4-devel-4.0.14/api_java/env_open.html">DbEnv.open</a>, <a href="../../db4-devel-4.0.14/api_java/env_remove.html">DbEnv.remove</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_cachesize.html">DbEnv.set_cachesize</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_data_dir.html">DbEnv.set_data_dir</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_errcall.html">DbEnv.set_errcall</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_error_stream.html">DbEnv.set_error_stream</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_errpfx.html">DbEnv.set_errpfx</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_feedback.html">DbEnv.set_feedback</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_flags.html">DbEnv.set_flags</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_rec_init.html">DbEnv.set_recovery_init</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_rpc_server.html">DbEnv.set_rpc_server</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_shm_key.html">DbEnv.set_shm_key</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_tas_spins.html">DbEnv.set_tas_spins</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_tmp_dir.html">DbEnv.set_tmp_dir</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_timeout.html">DbEnv.set_timeout</a>, <a href="../../db4-devel-4.0.14/api_java/env_set_verbose.html">DbEnv.set_verbose</a>, and <a href="../../db4-devel-4.0.14/api_java/env_strerror.html">DbEnv.strerror</a>. </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db4-devel-4.0.14/api_java/c_index.html"><img src="../../db4-4.0.14/images/api.gif" alt="API"></a><a href="../reftoc.html"><img src="../../db4-4.0.14/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>