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<!--Id: xml_close.so,v 10.5 2002/07/30 16:57:43 merrells Exp -->
<!--Id: m4.db_close,v 10.1 2002/06/19 19:31:15 bostic Exp -->
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<title>Berkeley DB: XmlContainer::close</title>
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<h1>XmlContainer::close</h1>
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<tt>
<h3><pre>
#include <DbXml.hpp>
<p>
void
XmlContainer::close(u_int32_t flags);
</pre></h3>
<h1>Description</h1>
<p>The XmlContainer::close method closes the specified container.
<p>The <a href="../api_cxx/xmlcontainer_class.html">XmlContainer</a> must be in the open state for the
call to succeed. The container is only open after a successful
call to the <a href="../api_cxx/xml_open.html">XmlContainer::open</a> method. Note that it is allowable
to re-open a container after it has been closed.
<p><dl compact>
<p><dt><a name="DB_NOSYNC">DB_NOSYNC</a><dd>Do not flush cached information to disk. The <a href="../api_cxx/db_close.html#DB_NOSYNC">DB_NOSYNC</a> flag is
a dangerous option. It should be set only if the application is doing
logging (with transactions) so that the database is recoverable after
a system or application crash, or if the database is always generated
from scratch after any system or application crash.
<p><b>It is important to understand that flushing cached information to disk
only minimizes the window of opportunity for corrupted data.</b> Although
unlikely, it is possible for database corruption to happen if a system
or application crash occurs while writing data to the database. To
ensure that database corruption never occurs, applications must either:
use transactions and logging with automatic recovery; use logging and
application-specific recovery; or edit a copy of the database, and once
all applications using the database have successfully called
UNREF==xm_close, atomically replace the original database with the
updated copy.
</dl>
<p>When multiple threads are using the <a href="../api_cxx/xmlcontainer_class.html">XmlContainer</a> concurrently,
only a single thread may call the XmlContainer::close method.
<h1>Class</h1>
<a href="../api_cxx/xmlcontainer_class.html">XmlContainer</a>, <a href="../api_cxx/xmldocument_class.html">XmlDocument</a>, <a href="../api_cxx/xmlquery_class.html">XmlQueryContext</a>
<h1>See Also</h1>
<a href="../api_cxx/xml_close.html">XmlContainer::close</a>,
<a href="../api_cxx/xml_declare.html">XmlContainer::declareIndex</a>,
<a href="../api_cxx/xml_del.html">XmlContainer::deleteDocument</a>,
<a href="../api_cxx/xml_get.html">XmlContainer::getDocument</a>,
<a href="../api_cxx/xml_getname.html">XmlContainer::getName</a>,
<a href="../api_cxx/xml_open.html">XmlContainer::open</a>,
<a href="../api_cxx/xml_put.html">XmlContainer::putDocument</a>
and
<a href="../api_cxx/xml_xpath.html">XmlContainer::queryWithXPath</a>.
<p>
<a href="../api_cxx/xmldoc_getattr.html">XmlDocument::getAttributeValue</a>,
<a href="../api_cxx/xmldoc_getcont.html">XmlDocument::getContent</a>,
<a href="../api_cxx/xmldoc_getid.html">XmlDocument::getID</a>,
<a href="../api_cxx/xmldoc_getname.html">XmlDocument::getName</a>,
<a href="../api_cxx/xmldoc_gettype.html">XmlDocument::getType</a>,
<a href="../api_cxx/xmldoc_setcont.html">XmlDocument::setContent</a>,
<a href="../api_cxx/xmldoc_setname.html">XmlDocument::setName</a>,
and
<a href="../api_cxx/xmldoc_settype.html">XmlDocument::setType</a>.
</tt>
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