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<title>Berkeley DB: DbEnv.set_error_stream</title>
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<h1>DbEnv.set_error_stream</h1>
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<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 and <a href="../api_java/db_set_error_stream.html">Db.set_error_stream</a> methods
are 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="../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="../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="../api_java/env_class.html">DbEnv</a>
<h1>See Also</h1>
<a href="../api_java/env_list.html">Database Environments and Related Methods</a>
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