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{{Mark|Introduced with Version 8.6:}}
If BaseX is run as web servlet, the Most HTTP options must be specified are defined in the {{Code|jetty.xml}} and {{Code|web.xml}} configuration files in the <code>[https://github.com/BaseXdb/basex/tree/master/basex-api/src/main/webapp/WEB-INF webapp/WEB-INF]</code> directory and . Some additional BaseX-specific options exist that will be set before the {{Code|jetty.xml}} and {{Code|web.xml}} configuration files.server is started:
{{Mark|Introduced with Version 8.6}}: replacing {{Code|CACHERESTXQ}}.
no edit summary
</pre>
* In XQuery, local options can be set via option declarations and pragmas (see [[XQuery Extensions#Pragmas|pragmas]]).
If options are changed by operations in the [[GUI]], the underlying commands will be listed in the [[GUI#Visualizations|Info View]].<br/><br/>
|-
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXData]]</code> or <code>[[Configuration#Database Directory|{home}/data]]</code>
|-
| '''Summary'''
|-
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXReporepo]]</code>
|-
| '''Summary'''
===FAIRLOCK===
{| width='100%'
| '''Summary'''
|Defines the locking strategy:
* By default, non-fair is used. Read transactions will be favored, and transactions that access no databases can be evaluated even if the limit of parallel transactions (specified via {{Option|PARALLEL}} ) has been reached. This prevents update operations from blocking all other requests (for . For example, the DBA can further be used to see which jobs are running, even if the queue is full).
* If fair locking is enabled, read and write transactions will be treated equally (first in, first out). This avoids starvation of update operations, and it should be used if the prompt evaluation of update operations is critical.
|}
| '''Summary'''
|This is a list of hosts that should be directly accessed. If the value is an empty string, it will be ignored.
|}
===IGNOREHOSTNAME===
{| width='100%'
|-
| width='120' | '''Signature'''
|{{Code|IGNOREHOSTNAME [boolean]}}
|-
| '''Default'''
|{{Code|false}}
|-
| '''Summary'''
|If this option is enabled, hostnames of certificates will not be verified. Use {{Option|IGNORECERT}} to completely disable certificate verification.
|}
|-
| '''Summary'''
|This option can be turned on to ignore untrusted certificates when connecting to servers. Please use this option carefullyUse {{Option|IGNOREHOSTNAME}} to suppress only the hostname verification.
|}
==HTTP Services==
===WEBPATH===
|-
| '''Default'''
|<code>[[Configuration#Database Directory|{home}/BaseXWeb]]</code> or <code>[[Configuration#Database Directory|{home}/webapp]]</code>
|-
| '''Summary'''
===PARSERESTXQ===
{| width='100%'
|-
| '''Summary'''
|By default, if BaseX is run as [[Web Application]], a database server instance will be started as soon as the first HTTP service is calledwell. The server can then be addressed by other BaseX clients in parallel to the HTTP services.<br/>If the option is set to {{Code|falsetrue}}, the database server will be disabled.
|}
|-
| '''Summary'''
|Defines a [[Parsers|parser]] for importing new files to the database. Currently, 'Available parsers are {{Code|XML'}}, '{{Code|JSON'}}, '{{Code|CSV'}}, '{{Code|TEXT'}}, 'and {{Code|HTML' are available as parsers}}. HTML will be parsed as normal XML files if [[Parsers#HTML_Parser|Tagsoup]] is not found in the classpath.
|}
|-
| '''Summary'''
|Specifies the way how HTML data will be parsed. Keys and values are delimited with <code>=</code>, and multiple options are delimited with <code>,</code>. The available options are described in the [[Parsers#Options|Parsers]] article.
|-
| '''Examples'''
|* <code>encoding=Shift-JIS,nons=true</code> parses the input as Sihft-JIS and suppresses namespaces.* <code>lexical=true</code> preserves comments.
|}
</xml>
</pre>
It is recommendable to additionally assign <code>indent=no</code> to the {{Option|SERIALIZER}} option; otherwise the serialized documents will automatically be indented.
|}
| '''Summary'''
|Specifies how often a query will be evaluated. The result is serialized only once, and the measured times are averages of all runs. This option can also be changed on [[Command-Line Options#BaseX Standalone|command line]] via <code>-r</code>.
|}
===ENFORCEINDEX===
{| width='100%'
|-
| width='120' | '''Signature'''
|{{Code|ENFORCEINDEX [boolean]}}
|-
| '''Default'''
|{{Code|false}}
|-
| '''Summary'''
|Enforces index rewritings in path expressions (see [[Indexes#Enforce Rewritings|Enforce Rewritings]] for details).
|}
===COPYNODE===
{| width='100%'
|-
| width='120' | '''Signature'''
|{{Code|COPYNODE [boolean]}}
|-
| '''Default'''
|{{Code|true}}
|-
| '''Summary'''
|When creating new nodes in XQuery via [https://www.w3.org/TR/xquery-31/#id-constructors Node Constructors], all enclosed nodes will be copied, and all resulting nodes will get new node identities. This step can be very expensive, and it can be disabled with this option. The option should be used carefully, as it changes the standard behavior of XQuery. It should preferrably be used in [[XQuery Extensions#Database Pragmas|Pragmas]].
|}
| '''Examples'''
|
* <code>indent=no</code> : disables indentation of XML nodes (by default, this is enabled)
* <code>encoding=US-ASCII,omit-xml-declaration=no</code> : sets the encoding to {{Code|US-ASCII}} and prints the XML declaration.
* <code>item-separator=,,</code> : separates serialized items by a single comma.
=Changelog=
;Version 9.0
* Added: {{Option|ENFORCEINDEX}}, {{Option|COPYNODE}}, {{Option|IGNOREHOSTNAME}}
;Version 8.6
