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<!--$Id: env_set_tmp_dir.so,v 10.3 2000/05/20 16:29:12 bostic Exp $-->
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<title>Berkeley DB: DbEnv.set_tmp_dir</title>
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<h1>DbEnv.set_tmp_dir</h1>
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<h3><pre>
import com.sleepycat.db.*;
<p>
public void set_tmp_dir(String dir)
throws DbException;
</pre></h3>
<h1>Description</h1>
<p>The path of a directory to be used as the location of temporary files.
The files created to back in-memory access method databases will be
created relative to this path. These temporary files can be quite large,
depending on the size of the database.
<p>If no directories are specified, the following alternatives are checked
in the specified order. The first existing directory path is used for
all temporary files.
<p><ol>
<p><li>The value of the environment variable <b>TMPDIR</b>.
<li>The value of the environment variable <b>TEMP</b>.
<li>The value of the environment variable <b>TMP</b>.
<li>The value of the environment variable <b>TempFolder</b>.
<li>The value returned by the GetTempPath interface.
<li>The directory <b>/var/tmp</b>.
<li>The directory <b>/usr/tmp</b>.
<li>The directory <b>/temp</b>.
<li>The directory <b>/tmp</b>.
<li>The directory <b>C:/temp</b>.
<li>The directory <b>C:/tmp</b>.
</ol>
<p>Note: environment variables are only checked if one of the
<a href="../api_java/env_open.html#DB_USE_ENVIRON">Db.DB_USE_ENVIRON</a> or <a href="../api_java/env_open.html#DB_USE_ENVIRON_ROOT">Db.DB_USE_ENVIRON_ROOT</a> flags were
specified.
<p>Note: the GetTempPath interface is only checked on Win/32 platforms.
<p>The DbEnv.set_tmp_dir interface may only be used to configure Berkeley DB before
the <a href="../api_java/env_open.html">DbEnv.open</a> interface is called.
<p>The DbEnv.set_tmp_dir method throws an exception that encapsulates a non-zero error value on
failure.
<p>The database environment's temporary file directory may also be set using the environment's
<b>DB_CONFIG</b> file. The syntax of the entry in that file is a
single line with the string "set_tmp_dir", one or more whitespace characters,
and the directory name. Because the <b>DB_CONFIG</b> file is read when the database
environment is opened, it will silently overrule configuration done
before that time.
<h1>Errors</h1>
<p><dl compact>
<p><dt>EINVAL<dd>An invalid flag value or parameter was specified.
<p>Called after <a href="../api_java/env_open.html">DbEnv.open</a> was called.
</dl>
<h3>Class</h3>
<a href="../api_java/dbenv_class.html">DbEnv</a>
<h1>See Also</h1>
<a href="../api_java/env_close.html">DbEnv.close</a>,
<a href="../api_java/env_open.html">DbEnv.open</a>,
<a href="../api_java/env_remove.html">DbEnv.remove</a>,
<a href="../api_java/env_strerror.html">DbEnv.strerror</a>,
<a href="../api_java/env_version.html">DbEnv.get_version_string</a>
<a href="../api_java/env_set_cachesize.html">DbEnv.set_cachesize</a>,
<a href="../api_java/env_set_errcall.html">DbEnv.set_errcall</a>,
<a href="../api_java/env_set_error_stream.html">DbEnv.set_error_stream</a>,
<a href="../api_java/env_set_errpfx.html">DbEnv.set_errpfx</a>,
<a href="../api_java/env_set_flags.html">DbEnv.set_flags</a>,
<a href="../api_java/env_set_mutexlocks.html">DbEnv.set_mutexlocks</a>,
and
<a href="../api_java/env_set_verbose.html">DbEnv.set_verbose</a>.
</tt>
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