- XCONF文件中指定XQuery文件路径
- XCONF文件中包含XQuery文件
- XCONF文件中指定Java类
第一种方式，是用XCONF文件通知eXistDB要对哪个collection中的哪些操作做触发，然后触发器指向一个XQM的文件。
1、首先，编写触发器的xqm文件，比如我的保存路径为/db/Triggers/TriggerTest01.xqm
TriggerTest01.xqm
xquery version "3.0";
module namespace trigger="http://exist-db.org/xquery/trigger";
declare namespace xmldb="http://exist-db.org/xquery/xmldb";
declare function trigger:before-create-collection($uri as xs:anyURI)
{
local:log-event("before", "create", "collection", $uri)
};
declare function trigger:after-create-collection($uri as xs:anyURI)
{
local:log-event("after", "create", "collection", $uri)
};
declare function trigger:before-copy-collection($uri as xs:anyURI, $new-uri as xs:anyURI)
{
local:log-event("before", "copy", "collection", concat("from: ", $uri, " to:", $new-uri))
};
declare function trigger:after-copy-collection($new-uri as xs:anyURI, $uri as xs:anyURI)
{
local:log-event("after", "copy", "collection", concat("from: ", $uri, " to:", $new-uri))
};
declare function trigger:before-move-collection($uri as xs:anyURI, $new-uri as xs:anyURI)
{
local:log-event("before", "move", "collection", concat("from: ", $uri, " to:", $new-uri))
};
declare function trigger:after-move-collection($new-uri as xs:anyURI, $uri as xs:anyURI)
{
local:log-event("after", "move", "collection", concat("from: ", $uri, " to:", $new-uri))
};
declare function trigger:before-delete-collection($uri as xs:anyURI)
{
local:log-event("before", "delete", "collection", $uri)
};
declare function trigger:after-delete-collection($uri as xs:anyURI)
{
local:log-event("after", "delete", "collection", $uri)
};
declare function trigger:before-create-document($uri as xs:anyURI)
{
local:log-event("before", "create", "document", $uri)
};
declare function trigger:after-create-document($uri as xs:anyURI)
{
local:log-event("after", "create", "document", $uri)
};
declare function trigger:before-update-document($uri as xs:anyURI)
{
local:log-event("before", "update", "document", $uri)
};
declare function trigger:after-update-document($uri as xs:anyURI)
{
local:log-event("after", "update", "document", $uri)
};
declare function trigger:before-copy-document($uri as xs:anyURI, $new-uri as xs:anyURI)
{
local:log-event("before", "copy", "document", concat("from: ", $uri, " to: ", $new-uri))
};
declare function trigger:after-copy-document($new-uri as xs:anyURI, $uri as xs:anyURI)
{
local:log-event("after", "copy", "document", concat("from: ", $uri, " to: ", $new-uri))
};
declare function trigger:before-move-document($uri as xs:anyURI, $new-uri as xs:anyURI)
{
local:log-event("before", "move", "document", concat("from: ", $uri, " to: ", $new-uri))
};
declare function trigger:after-move-document($new-uri as xs:anyURI, $uri as xs:anyURI)
{
local:log-event("after", "move", "document", concat("from: ", $uri, " to: ", $new-uri))
};
declare function trigger:before-delete-document($uri as xs:anyURI)
{
local:log-event("before", "delete", "document", $uri)
};
declare function trigger:after-delete-document($uri as xs:anyURI)
{
local:log-event("after", "delete", "document", $uri)
};
declare function local:log-event($type as xs:string, $event as xs:string, $object-type as xs:string, $uri as xs:string)
{
let $log-collection := "/db/Triggers"
let $log := "log01.xml"
let $log-uri := concat($log-collection, "/", $log)
return
(
(: create the log file if it does not exist :)
if (not(doc-available($log-uri))) then
xmldb:store($log-collection, $log, <triggers/>)
else ()
,
(: log the trigger details to the log file :)
update insert <trigger event="{string-join(($type, $event, $object-type), '-')}" uri="{$uri}" timestamp="{current-dateTime()}"/> into doc($log-uri)/triggers
)
};
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