Re: document() runs out of memory

Xalan keeps an internal cache of the documents, so it shouldn't be
recreating a source tree or parsing each time.  I suspect you are running
into a variable bug that has since been fixed.  We just released Xalan
1.0.0, so I suggest you try that.

BTW, Xalan-specific questions are better posted on the Xalan dev list (you
can subscribe at http://xml.apache.org/mail.html).  The xsl-list should be
reserved for XSL specific questions.

-scott




                                                                                                                           
                    Brad Sommerfeld                                                                                        
                    <bsommerfeld@xxxxxxx>        To:     "'XSL-List@xxxxxxxxxxxxxxxx'" <XSL-List@xxxxxxxxxxxxxxxx>         
                    Sent by:                     cc:     (bcc: Scott Boag/CAM/Lotus)                                       
                    owner-xsl-list@mulber        Subject:     document() runs out of memory                                
                    rytech.com                                                                                             
                                                                                                                           
                                                                                                                           
                    03/21/00 02:31 PM                                                                                      
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I am using the document function to read in external files but seem to be
exceeding my memory limits.  I believe it is because the previously read
files are still being held in memory but I don't know how to remove them.


The main template is:


  <xsl:template match="/">
    <xsl:for-each select="document('all_forms_list.xml')/someURIs/file/text
()">
    <xsl:variable name="contents" select="document(string(.))"/>
    <xsl:apply-templates select="$contents//XFDL"/>
    </xsl:for-each>
  </xsl:template>





There is a single document all_forms_list.xml which is a list of URI's to
be read.  When the list gets to about 250 URI's the parser exists with an
out of memory exception.


I am using Apache Xalan 0.19.2 with 256meg of memory on a pentium running
NT 4.0.


I ran a test to determine if it was the input or the output trees that were
exceeding the memory and concluded that it was the inputs.  I doubled the
size of the output tree (by executing the templates 2X) and still failed at
the same number of inputs even though my outputs went from ~3000 lines of
XML to ~6000 lines of XML.


I'm afraid that the variable $contents is being created scoped within the
for-each and that I'm getting a new one everytime but I don't know how to
prevent it.  Any ideas?


Brad Sommerfeld








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