Name
xslt_stale — force reload of XSL stylesheet
Synopsis
xslt_stale
(
|
in
uri
varchar
); |
Description
This function can be used to force Virtuoso to reload a cached
stylesheet from the URI when next used with
xslt()
or http_xslt()
.
Using this function before every application of the stylesheet is
extremely inefficient. If stylesheets are stored in the database, you
can use this function in an update trigger on the table storing the
stylesheets but you don't have to use it before every application of the
sheet.
This function never needs to be applied to a stylesheet URI with
the file:// protocol since xslt()
and
http_xslt()
will automatically detect a stale
cache entry. However if the stylesheet is stored on a remote web
server, or if the stylesheet contains subdocuments (
e.g. external XML entities, xsl:include or xsl:import statements)
this function is needed to force a reload.
Parameters
uri
The location of the style sheet to force a reload.
Errors
The function never signals any errors.
E.g. it is not an error if the specified stylesheet does not exist
or if the specified stylesheet is used by other transaction when
the xslt_stale()
is called.
Examples
Example 24.536. Simple Use
sheet := 'virt://WS.WS.SYS_DAV_RES.RES_FULL_PATH.RES_CONTENT:/DAV/stylesheets/document.xsl'; xslt_stale (sheet); xslt(sheet, xml_doc_tree);