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<!--$Id: db_class.so,v 10.23 2000/03/17 01:54:00 bostic Exp $-->
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<title>Berkeley DB: Db</title>
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<h1>Db</h1>
</td>
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<h3><pre>
import com.sleepycat.db.*;
<p>
public class Db extends Object
{
	Db(DbEnv dbenv, int flags)
		throws DbException;
	...
}
</pre></h3>
<h1>Description</h1>
<p>This manual page describes the specific details of the Db class,
which is the center of access method activity.
<p>If no <b>dbenv</b> value is specified, the database is standalone, i.e.,
it is not part of any Berkeley DB environment.
<p>If a <b>dbenv</b> value is specified, the database is created within the
specified Berkeley DB environment. The database access methods automatically
make calls to the other subsystems in Berkeley DB based on the enclosing
environment. For example, if the environment has been configured to use
locking, then the access methods will automatically acquire the correct
locks when reading and writing pages of the database.
<p>The <b>flags</b> value must be set to 0 or by bitwise inclusively <b>OR</b>'ing together one or more
of the following values.
<p><dl compact>
<p><dt><a name="Db.DB_XA_CREATE">Db.DB_XA_CREATE</a><dd>Instead of creating a standalone database, create a database intended to
be accessed via applications running under a X/Open conformant Transaction
Manager.  The database will be opened in the environment specified by the
OPENINFO parameter of the GROUPS section of the ubbconfig file.  See the
<a href="../ref/xa/intro.html">XA Resource Manager</a> chapter in the
Reference Guide for more information.
</dl>
<h3>Class</h3>
<a href="../api_java/db_class.html">Db</a>
<h1>See Also</h1>
<a href="../api_java/db_close.html">Db.close</a>,
<a href="../api_java/db_cursor.html">Db.cursor</a>,
<a href="../api_java/db_del.html">Db.del</a>,
<a href="../api_java/db_fd.html">Db.fd</a>,
<a href="../api_java/db_get.html">Db.get</a>,
<a href="../api_java/db_get_byteswapped.html">Db.get_byteswapped</a>,
<a href="../api_java/db_get_type.html">Db.get_type</a>,
<a href="../api_java/db_join.html">Db.join</a>,
<a href="../api_java/db_key_range.html">Db.key_range</a>,
<a href="../api_java/db_open.html">Db.open</a>,
<a href="../api_java/db_put.html">Db.put</a>,
<a href="../api_java/db_remove.html">Db.remove</a>,
<a href="../api_java/db_set_bt_minkey.html">Db.set_bt_minkey</a>,
<a href="../api_java/db_set_cachesize.html">Db.set_cachesize</a>,
<a href="../api_java/db_set_errcall.html">Db.set_errcall</a>,
<a href="../api_java/db_set_errpfx.html">Db.set_errpfx</a>,
<a href="../api_java/db_set_flags.html">Db.set_flags</a>,
<a href="../api_java/db_set_h_ffactor.html">Db.set_h_ffactor</a>,
<a href="../api_java/db_set_h_nelem.html">Db.set_h_nelem</a>,
<a href="../api_java/db_set_lorder.html">Db.set_lorder</a>,
<a href="../api_java/db_set_pagesize.html">Db.set_pagesize</a>,
<a href="../api_java/db_set_q_extentsize.html">Db.set_q_extentsize</a>,
<a href="../api_java/db_set_re_delim.html">Db.set_re_delim</a>,
<a href="../api_java/db_set_re_len.html">Db.set_re_len</a>,
<a href="../api_java/db_set_re_pad.html">Db.set_re_pad</a>,
<a href="../api_java/db_set_re_source.html">Db.set_re_source</a>,
<a href="../api_java/db_stat.html">Db.stat</a>,
<a href="../api_java/db_sync.html">Db.sync</a>,
<a href="../api_java/db_upgrade.html">Db.upgrade</a>
and
<a href="../api_java/db_verify.html">Db.verify</a>.
</tt>
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