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* In this document, the namespace is bound to the {{Code|sessions}} prefix.
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=Conventions=
* The module will be available if the {{Code|basex-api}} library is found package must be included in the classpath. This is always the case if you use one of the complete distributions of BaseX (zip, exe, war)of BaseX.
* All functions and errors are assigned of the <code><nowiki>http://basex.org/modules/sessions</nowiki></code> namespace. The module must be imported in the query prolog:
<pre class="brush:xquery">
...
</pre>
* If any of the functions is called outside the servlet context, <code>[[XQuery Errors#BaseX Errors|basex:http]]</code> is raised.
* If a specified session id is not found, <code>[[#Errors|not-found]]</code> is raised.
* As sessions are side-effecting operations, all functions are flagged as ''non-deterministic''. As a result, some query optimizations This means that the functions will not be suppressedreordered by the compiler.
=Functions=
