Changes

As sessions are side* The module will be available if the {{Code|basex-effecting operations, all functions api}} library is found in this module are flagged as ''non-deterministic''the classpath. This means that is the evaluation order case if you use one of the functions will not be influenced by the compilercomplete distributions of BaseX (zip, exe, war). * All functions and errors are assigned to of the {{Code|<code><nowiki>http://basex.org/modules/sessions}} namespace, which must be dynamically imported. In this documentation, the namespace is bound to the {{Code|sessions}} prefix. Errors are assigned to the {{Code|http:</nowiki></basex.org/errors}} code> namespace, which is statically bound to the {{Code|bxerrsessions}} prefix. * If any of the module functions is called outside the servlet context, the error <code>[[XQuery Errors#BXSE0003BaseX Errors|BXSE0003basex:http]] </code> is raised. * If a specified session id is not found, <code>[[#BXSE0004Errors|BXSE0004not-found]] </code> is raised.* As sessions are side-effecting operations, all functions are flagged as ''non-deterministic''. As a result, some query optimizations will be suppressed.

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| width='90120' | '''Signatures'''|{{Func|sessions:ids||xs:string*}}

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| width='90120' | '''Signatures'''

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| width='90120' | '''Signatures'''

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| width='90120' | '''Signatures'''

|Returns the names of all variables attributes bound to the session specified by {{Mono|$id}}.

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| width='90120' | '''Signatures'''|{{Func|sessions:get|$id as xs:string, $key name as xs:string|xs:string?item()*}}<br/>{{Func|sessions:get|$id as xs:string, $key name as xs:string, $default as xs:stringitem()*|xs:stringitem()*}}

|Returns the value of a variable bound to an attribute with the specified {{Code|$name}} from the session with the specified by {{Mono|$id}}. If the variable does not existattribute is unknown, an empty sequence or the optionally specified default value is returned instead.|-| '''Errors'''|{{ErrorCode|BXSE0002|#Errors$default}} the value of a session variable could not will be retrievedreturned instead.

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| width='90120' | '''Signatures'''|{{Func|sessions:set|$id as xs:string, $key name as xs:string, $value as xs:stringitem()*|empty-sequence()}}

|Assigns a Returns the specified {{Code|value }} to a variable bound to the attribute with the specified {{Code|$name}} from the session with the specified by {{Mono|$id}}.

|{{Error|BXSE0001set|#Errors}} a function item was specified as The supplied value of a session variablecannot be materialized.

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| width='90120' | '''Signatures'''|{{Func|sessions:delete|$id as xs:string, $key name as xs:string|empty-sequence()}}

|Deletes a variable bound to an attribute with the specified {{Code|$name}} from the session with the specified by {{Mono|$id}}.

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| width='90120' | '''Signatures'''

! width="5%110"|Code! width="95%"|Description

|{{Code|BXSE0001set}}|A function item was specified as The supplied value of a session attributecannot be stored.

|{{Code|BXSE0002}}|An error occurred while retrieving the value of a session attribute.|not-|{{Code|BXSE0003}}|A function was called outside the servlet context.|-|{{Code|BXSE0004found}}|The specified session was is not foundavailable.