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Re: [wtp-incubator-dev] Increase Java heap size
For the javaproxy you need the Main class of the Java proxy, which is: org.javaproxy.Proxy. Sorry for not mentioning it. All other arguments are passed through the "Interpreter arguments" field.

Try to run it from the comand line first and see if it works. (I have tested it and it works for me both in Eclipse and shell).

with no arguments for Java, nor mxquery:
java -cp /path/to/javaproxy.jar org.javaproxy.Proxy /path/to/mxquery.jar ch.ethz.mxquery.cmdline.MXQuery

with only mxquery arguments:
java -cp /path/to/javaproxy.jar org.javaproxy.Proxy /path/to/mxquery.jar ch.ethz.mxquery.cmdline.MXQuery mySeparator mySeparator -f /path/to/query_file.xq

with both Java and mxquery arguments:
java -cp /path/to/javaproxy.jar org.javaproxy.Proxy /path/to/mxquery.jar ch.ethz.mxquery.cmdline.MXQuery mySeparator -X... mySeparator -f /path/to/query_file.xq


Gabriel

On Thu, Jun 16, 2011 at 10:11 AM, FIXED-TERM Braun Simon (BEG-PG/EES4-Wi) <fixed-term.Simon.Braun@xxxxxxxxxxxx> wrote:
Hi Gabriel,
 
first of all, thanks for your help.
If I enter the path for mxquery.jar in the interpreter arguments, main class: "ch.ethz.mxquery.cmdline.MXQuery" is not accessible.
Eclipse returns the error:

java.lang.NoClassDefFoundError: ch/ethz/mxquery/cmdline/MXQuery

Caused by: java.lang.ClassNotFoundException: ch.ethz.mxquery.cmdline.MXQuery

Seems like, it didn't even parse the interpreter arguments, if I enter an invalid path, same error returns.

Any idea what can cause the problem?

Thanks, best regards,

Simon


Von: Gabriel Petrovay [mailto:gabipetrovay@xxxxxxxxx]
Gesendet: Donnerstag, 16. Juni 2011 03:10
An: FIXED-TERM Braun Simon (BEG-PG/EES4-Wi); Simon.Braun@xxxxxxxxxxxx
Cc: WTP Incubator Dev list

Betreff: Re: [wtp-incubator-dev] Increase Java heap size

Hi Simon,

Yes, the problem is in XQDT. I have corrected it in the trunk but this will only be available in our next milestone release (sometime end of June).

What you can do until than is to hack a wrapper that calls java again with the needed setting. In order to make it easier for you, I have quickly coded this wrapper for you (see attached). The wrapper takes the following arguments:
JAR_PATH MAIN_CLASS ( SEPARATOR (JAVA_ARGS)* SEPARATOR (ARGS)* )?

All you have to do now is to setup in XQDT this wrapper as an XQuery interpreter and provide the following interpreter arguments for it:
/path/to/mxquery.jar ch.ethz.mxquery.cmdline.MXQuery random_string -Xms32m -Xmx128m random_string -f

Notes:
1. Please avoid whitespaces in the mxquery.jar path!
2. you choose your own "random_string" without whitespaces

All the best,
Gabriel



On Wed, Jun 15, 2011 at 8:50 AM, FIXED-TERM Braun Simon (BEG-PG/EES4-Wi) <fixed-term.Simon.Braun@xxxxxxxxxxxx> wrote:
I am using MXQuery0.6.0.
Everything works fine, problems occur only if I try to parse those big files.
So in my opinion, it is rather an eclipse error than a error of the processor.
 
Simon

Gesendet: Freitag, 10. Juni 2011 16:22

An: WTP Incubator Dev list
Betreff: Re: [wtp-incubator-dev] Increase Java heap size

Which XQuery processor are you trying to run?

Dave

On 05/30/2011 10:04 AM, FIXED-TERM Braun Simon (BEG-PG/EES4-Wi) wrote:
No, I don't want to open them in the XML-Editor, I only want to parse the file with a simple query like:
 

for $y in doc(sw_comp_dev_mod.xml)/MSRSW/CATEGORY

return

data($y)


Von: wtp-incubator-dev-bounces@xxxxxxxxxxx [mailto:wtp-incubator-dev-bounces@xxxxxxxxxxx] Im Auftrag von David Carver
Gesendet: Montag, 30. Mai 2011 15:32
An: WTP Incubator Dev list
Betreff: Re: [wtp-incubator-dev] Increase Java heap size

Are you trying to load these into the XML Editor?  If so they are too large, as the XML Editor needs to load the entire file into memory.

Dave

On 05/30/2011 09:10 AM, FIXED-TERM Braun Simon (BEG-PG/EES4-Wi) wrote:
 
Hi together,
 
I want to parse big XML-Files (32MB) with Xquery.
I always reveive the error: Exception in thread "main" java.lang.OutOfMemoryError: Java heap space
Then I changed -Xms and -Xms in the eclipse.ini but nothing happend, I couldn't fix the problem even if I enter enough memory.
I tried to enter a extreme high value, but after this eclipse didn't start anymore.
 
Do I have other posibilities to change heap size in eclipse?
 
Best regards,
Simon
 

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_______________________________________________
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wtp-incubator-dev@xxxxxxxxxxx
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_______________________________________________
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--
MSc Gabriel Petrovay
Mobile: +41(0)787978034
www.28msec.com



--
MSc Gabriel Petrovay
Mobile: +41(0)787978034
www.28msec.com

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