>If you think there is bugs in the impl of XPath, please open a bug report
>at https://issues.apache.org/jira/secure/Dashboard.jspa
>and attach a valid test case that can demonstrate the problem.
I don't think is a bug. I rather think that XPATH builds a DOM tree when
returns a NodeSet (please correct me if I am wrong). When the file is about 6MB
the java memory crashes. Two workarounds I have tried are to increase heap and
divide the xml file. Both solutions bring the evaluation limit farther, but
there is still a limit.
I think it would be possible an XPATH implementation for SAX, such as
Sequential XPATH, but I haven't gone deelply into this.
-Enric
On Fri, 13 Jan 2006, Enric Jaen wrote:
> Hello, I got an OutOfMemory when I evaluate an XPATH expression a large XML
> file.
>
> I am using this code:
>
> XPathFactory factory = XPathFactory.newInstance();
> XPath xpath = factory.newXPath();
> InputSource entities_is=new InputSource("file.xml");
> XPathExpression xpathExpr = xpath.compile(expr);
> return (NodeList)xpathExpr.evaluate(entities_is,
> XPathConstants.NODESET);
>
> I am not an expert of XPATH development, therefore I'd appreciate if someone
> could give me an explanation of why is this error happening.
> Is this because XPATH uses DOM internaly? If so, is there any implementation
> for XPATH for SAX?
> Is there any other explanation/solution?
>
> Thanks in advance for your help.
> -Enric
>
>
>
>
>
