Re: How does WO enforce serial request processing per session?
What if I access and use a WOSession outside of the request-response loop? Do i have to ensure that i call WOApplication.saveSessionForContext() when i am done using it? Thanks Peter Chuck Hill wrote: On Aug 27, 2007, at 12:51 AM, Peter Vandoros wrote: Hi List, I was wondering how WebObjects enforces serial access to the WOSession (ie. request processing). Does the "wo" request handler enforce serial access? Does the"wa" request handler enforce serial access? Does Application.dispatchRequest() enforce serial access? Also, if I was to access a WOSession outside of a request-response loop, how can I ensure that the WOSession is not processing a request at the same time? How can I ensure that only one Thread accesses the WOSession at a time that comes from a "da" request? How do I initialise the WOSession correctly if I need access to it when not coming from a "wo" request the "wosid" is not sent along with a "wa" request? See WOSessionStore and related methods in WOApplication. See Practical WebObjects pages 171 - 172, Is WOApplication.restoreSessionWithID() going to do "the right thing" when ever I call it? ie. is it going to initialize the WOSession correctly? will it ensure serial access to the WOSession? etc... Yes. Chuck -- Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to resupplying any affected message or attachments. For more information about Etech Group, please visit us at http://www.etechgroup.com.au. ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: setting default order of entity fetches
On 24/08/2007, at 2:09 AM, Alan Ward wrote: On Aug 23, 2007, at 6:41 AM, Lachlan Deck wrote: Personally, I can't see the benefit of continually sorting a keyPath in memory via some ui option every time you access that array rather than once from the fetch where possible... That depends on your particular situation. If you ever work on a WebObjects app where you deploy thousands of instances then you might change your opinion. Yup. I imagine you're right. At that point you'll find that you have copious amounts of spare CPU cycles on your application hosts and you'll be trying to squeeze every possible performance gain from your DB queries. Sorting in the database is not a cheap as most people think. Many times it results in disk i/o that would not have happened where it not for the sort. Right. Good point. I hadn't considered performance benefits from distributing this kind of thing amongst lots of instances vs the db penalty of sorting the results of the fetch. However, this particular app is utilising the shared ec quite a bit so I'd assumed round-trips to the db would hopefully be limited anyway. I don't envisage a time when we'd need ~1000 instances for the app, but we can dream ;-) I suppose the question is: at what point does the benefit of sorting in the db vs the gui make better sense? Also, you don't have to sort every time. It's quite trivial to cache the sorted array and invalidate that cache when the relationship changes (or is refaulted). Sure. Are you referring to delegate methods and notifications or more specifically per component? I've achieved this for now by simply subclassing EODatabaseContext's objectsForFetchSpecification [1] but do you/people think this be better via a delegate method of some kind? Thanks. [1] if the context is the shared ec and the sort orderings of the fetch spec is empty, cloning the fetchspec prior to calling super and adding the default ordering if one's defined. Seems to work well. with regards, -- Lachlan Deck ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: How does WO enforce serial request processing per session?
thanks Chuck I'll try to test this to confirm. thanks for your help Regards Peter Chuck Hill wrote: On Aug 27, 2007, at 12:51 AM, Peter Vandoros wrote: Hi List, I was wondering how WebObjects enforces serial access to the WOSession (ie. request processing). Does the "wo" request handler enforce serial access? Does the"wa" request handler enforce serial access? Does Application.dispatchRequest() enforce serial access? Also, if I was to access a WOSession outside of a request-response loop, how can I ensure that the WOSession is not processing a request at the same time? How can I ensure that only one Thread accesses the WOSession at a time that comes from a "da" request? How do I initialise the WOSession correctly if I need access to it when not coming from a "wo" request the "wosid" is not sent along with a "wa" request? See WOSessionStore and related methods in WOApplication. See Practical WebObjects pages 171 - 172, Is WOApplication.restoreSessionWithID() going to do "the right thing" when ever I call it? ie. is it going to initialize the WOSession correctly? will it ensure serial access to the WOSession? etc... Yes. Chuck -- Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to resupplying any affected message or attachments. For more information about Etech Group, please visit us at http://www.etechgroup.com.au. ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
RE: Blank page after deploy on Ubuntu
Hi, There is nothing in the page, no code after "View Code". No exception throw. No R-R loop I'm just wondering something wrong in my apache config, but don't know what's wrong... I did search in the archive list, somebody said might be something wrong in the classpath, so that's why I post them in the email. I could n't see anything wrong, and app is launched. Help! maybe somebody in deployment list? kevin -Original Message- From: Chuck Hill [mailto:[EMAIL PROTECTED] Sent: Tuesday, 28 August 2007 4:17 a.m. To: Ren, Kevin Cc: webobjects-dev@lists.apple.com Subject: Re: Blank page after deploy on Ubuntu On Aug 26, 2007, at 8:53 PM, Ren, Kevin wrote: > Hi, > > I followed the "How_to" link, built WO-Apache adaptor for Ubuntu and > run wotaskd and JavaMonitor applications, Everything looks fine. I > could got my 1085 configuration page and get JavaMonitor page to > configure application. > > But after I deploy HelloWorld App, I got app running but when click > URL, only have blank page in my FireFox browser. > Anyone has idea what's going wrong? Your app is throwing an exception very early or very late in the R-R loop. Override dispatchRequest in Application and performAction in DirectAction to catch and log Throwable. That should show what is failing. You _will_ need to have the Output Path configured for the application. Chuck > > FOR wotaskd > > [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ > JavaApplications/wotaskd.woa$ Reading UNIXClassPath.txt ... > Launching wotaskd.woa ... > java -DWORootDirectory="/opt/Apple" > -DWOLocalRootDirectory="/opt/Apple/Local" > -DWOUserDirectory="/opt/Apple/Library/WebObjects/JavaApplications/ > wotaskd.woa" > -classpath " /opt/Apple/Library/WebObjects/JavaApplications/ > wotaskd.woa/Contents/Resources/Java/wotaskd.jar: > /opt/Apple/Library/Frameworks/JavaEOControl.framework/Resources/ > Java/javaeocontrol.jar: > /opt/Apple/Library/Frameworks/JavaXML.framework/Resources/Java/ > javaxml.jar: > /opt/Apple/Library/PrivateFrameworks/JavaMonitor.framework/ > Resources/Java/javamonitor.jar: > /opt/Apple/Library/Frameworks/JavaFoundation.framework/Resources/ > Java/javafoundation.jar: > /opt/Apple/Library/Frameworks/JavaWOExtensions.framework/Resources/ > Java/JavaWOExtensions.jar: > /opt/Apple/Library/Frameworks/JavaWebObjects.framework/Resources/ > Java/javawebobjects.jar: > /home/xiaowen/Library/Java: > /opt/Apple/Local/Library/Java: > /opt/Apple/Library/Java: > /Network/Library/Java: > /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/classes.jar: > /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/ui.jar: > /usr/local/tomcat/common/lib/jsp-api.jar: > /usr/local/tomcat/common/lib/servlet-api.jar"Application > [2007-08-26 19:42:06 NZST] Multicast Response Disabled > [2007-08-26 19:42:06 NZST] Created UDP socket; listening > for requests... > [2007-08-26 19:42:06 NZST] The URL for webserver connect is: > http://xiaowen-desktop/cgi-bin/WebObjects/wotaskd.woa/-1085 > The URL for direct connect is: > http://xiaowen-desktop:1085/cgi-bin/WebObjects/wotaskd.woa > [2007-08-26 19:42:06 NZST] Waiting for requests... > > > FOR JavaMonitor > > [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ > JavaApplications/JavaMonitor.woa$ sudo ./JavaMonitor & [2] 19950 > [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ > JavaApplications/JavaMonitor.woa$ Reading UNIXClassPath.txt ... > Launching JavaMonitor.woa ... > java -DWORootDirectory="/opt/Apple" > -DWOLocalRootDirectory="/opt/Apple/Local" > -DWOUserDirectory="/opt/Apple/Library/WebObjects/JavaApplications/ > JavaMonitor.woa" > -classpath " > /opt/Apple/Library/WebObjects/JavaApplications/JavaMonitor.woa/ > Contents/Resources/Java/javamonitor.jar: > /opt/Apple/Library/Frameworks/JavaEOControl.framework/Resources/ > Java/javaeocontrol.jar: > /opt/Apple/Library/Frameworks/JavaXML.framework/Resources/Java/ > javaxml.jar: > /opt/Apple/Library/PrivateFrameworks/JavaMonitor.framework/ > Resources/Java/javamonitor.jar: > /opt/Apple/Library/Frameworks/JavaFoundation.framework/Resources/ > Java/javafoundation.jar: > /opt/Apple/Library/Frameworks/JavaWOExtensions.framework/Resources/ > Java/JavaWOExtensions.jar: > /opt/Apple/Library/Frameworks/JavaWebObjects.framework/Resources/ > Java/javawebobjects.jar: > /home/xiaowen/Library/Java: > /opt/Apple/Local/Library/Java: > /opt/Apple/Library/Java: > /Network/Library/Java: > /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/classes.jar: > /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/ui.jar: > /usr/local/tomcat/common/lib/jsp-api.jar: > /usr/local/tomcat/common/lib/servlet-api.jar" Application > [2007-08-26 19:47:07 NZST] Creating LifebeatThread now with: > JavaMonitor 48632 xiaowen-desktop/127.0.1.1 1085 3 > > [2007-08-26 19:47:07 NZST] Your application is not running on a > supported development platform. AutoLaunch will not work. > > Your application's URL is: > http://xiaowen-desktop:48632/cgi-bin/WebObjects/JavaMonitor.woa > [2007
Re: Monitor Forgetfulness on intel?
On Aug 27, 2007, at 3:44 AM, Jeremy Matthews wrote:
hmmm...tried doing that and it still does not workshould I
increase sleep to a higher number?
Or, perhaps I'm typing incorrectly...the first few lines of the file:
#!/bin/sh
sleep 5
export PATH
PATH=/usr/xpg4/bin:${PATH}:/bin:/usr/bin
sleep is /bin/sleep, so to be safe, I'd put the sleep statement
after setting PATH although I'd be surprised if PATH doesn't include /
bin prior to resetting it.
Others have reported that a 5 second delay is insufficient, and that
the "correct" delay depends on server speed and other factors. So
some experimentation may be required.
Aloha,
Art
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Re: How does WO enforce serial request processing per session?
On Aug 27, 2007, at 12:51 AM, Peter Vandoros wrote: Hi List, I was wondering how WebObjects enforces serial access to the WOSession (ie. request processing). Does the "wo" request handler enforce serial access? Does the"wa" request handler enforce serial access? Does Application.dispatchRequest() enforce serial access? Also, if I was to access a WOSession outside of a request-response loop, how can I ensure that the WOSession is not processing a request at the same time? How can I ensure that only one Thread accesses the WOSession at a time that comes from a "da" request? How do I initialise the WOSession correctly if I need access to it when not coming from a "wo" request the "wosid" is not sent along with a "wa" request? See WOSessionStore and related methods in WOApplication. See Practical WebObjects pages 171 - 172, Is WOApplication.restoreSessionWithID() going to do "the right thing" when ever I call it? ie. is it going to initialize the WOSession correctly? will it ensure serial access to the WOSession? etc... Yes. Chuck -- Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems. http://www.global-village.net/products/practical_webobjects ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Blank page after deploy on Ubuntu
On Aug 26, 2007, at 8:53 PM, Ren, Kevin wrote: Hi, I followed the "How_to" link, built WO-Apache adaptor for Ubuntu and run wotaskd and JavaMonitor applications, Everything looks fine. I could got my 1085 configuration page and get JavaMonitor page to configure application. But after I deploy HelloWorld App, I got app running but when click URL, only have blank page in my FireFox browser. Anyone has idea what's going wrong? Your app is throwing an exception very early or very late in the R-R loop. Override dispatchRequest in Application and performAction in DirectAction to catch and log Throwable. That should show what is failing. You _will_ need to have the Output Path configured for the application. Chuck FOR wotaskd [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ JavaApplications/wotaskd.woa$ Reading UNIXClassPath.txt ... Launching wotaskd.woa ... java -DWORootDirectory="/opt/Apple" -DWOLocalRootDirectory="/opt/Apple/Local" -DWOUserDirectory="/opt/Apple/Library/WebObjects/JavaApplications/ wotaskd.woa" -classpath " /opt/Apple/Library/WebObjects/JavaApplications/ wotaskd.woa/Contents/Resources/Java/wotaskd.jar: /opt/Apple/Library/Frameworks/JavaEOControl.framework/Resources/ Java/javaeocontrol.jar: /opt/Apple/Library/Frameworks/JavaXML.framework/Resources/Java/ javaxml.jar: /opt/Apple/Library/PrivateFrameworks/JavaMonitor.framework/ Resources/Java/javamonitor.jar: /opt/Apple/Library/Frameworks/JavaFoundation.framework/Resources/ Java/javafoundation.jar: /opt/Apple/Library/Frameworks/JavaWOExtensions.framework/Resources/ Java/JavaWOExtensions.jar: /opt/Apple/Library/Frameworks/JavaWebObjects.framework/Resources/ Java/javawebobjects.jar: /home/xiaowen/Library/Java: /opt/Apple/Local/Library/Java: /opt/Apple/Library/Java: /Network/Library/Java: /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/classes.jar: /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/ui.jar: /usr/local/tomcat/common/lib/jsp-api.jar: /usr/local/tomcat/common/lib/servlet-api.jar"Application [2007-08-26 19:42:06 NZST] Multicast Response Disabled [2007-08-26 19:42:06 NZST] Created UDP socket; listening for requests... [2007-08-26 19:42:06 NZST] The URL for webserver connect is: http://xiaowen-desktop/cgi-bin/WebObjects/wotaskd.woa/-1085 The URL for direct connect is: http://xiaowen-desktop:1085/cgi-bin/WebObjects/wotaskd.woa [2007-08-26 19:42:06 NZST] Waiting for requests... FOR JavaMonitor [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ JavaApplications/JavaMonitor.woa$ sudo ./JavaMonitor & [2] 19950 [EMAIL PROTECTED]:/opt/Apple/Library/WebObjects/ JavaApplications/JavaMonitor.woa$ Reading UNIXClassPath.txt ... Launching JavaMonitor.woa ... java -DWORootDirectory="/opt/Apple" -DWOLocalRootDirectory="/opt/Apple/Local" -DWOUserDirectory="/opt/Apple/Library/WebObjects/JavaApplications/ JavaMonitor.woa" -classpath " /opt/Apple/Library/WebObjects/JavaApplications/JavaMonitor.woa/ Contents/Resources/Java/javamonitor.jar: /opt/Apple/Library/Frameworks/JavaEOControl.framework/Resources/ Java/javaeocontrol.jar: /opt/Apple/Library/Frameworks/JavaXML.framework/Resources/Java/ javaxml.jar: /opt/Apple/Library/PrivateFrameworks/JavaMonitor.framework/ Resources/Java/javamonitor.jar: /opt/Apple/Library/Frameworks/JavaFoundation.framework/Resources/ Java/javafoundation.jar: /opt/Apple/Library/Frameworks/JavaWOExtensions.framework/Resources/ Java/JavaWOExtensions.jar: /opt/Apple/Library/Frameworks/JavaWebObjects.framework/Resources/ Java/javawebobjects.jar: /home/xiaowen/Library/Java: /opt/Apple/Local/Library/Java: /opt/Apple/Library/Java: /Network/Library/Java: /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/classes.jar: /opt/Apple/Library/Frameworks/JavaVM.framework/Classes/ui.jar: /usr/local/tomcat/common/lib/jsp-api.jar: /usr/local/tomcat/common/lib/servlet-api.jar" Application [2007-08-26 19:47:07 NZST] Creating LifebeatThread now with: JavaMonitor 48632 xiaowen-desktop/127.0.1.1 1085 3 [2007-08-26 19:47:07 NZST] Your application is not running on a supported development platform. AutoLaunch will not work. Your application's URL is: http://xiaowen-desktop:48632/cgi-bin/WebObjects/JavaMonitor.woa [2007-08-26 19:47:07 NZST] Waiting for requests... FOR HelloWorld [EMAIL PROTECTED]:/opt/Apple/Local/Library/WebObjects/ Applications/HelloWorld.woa$ Reading UNIXClassPath.txt ... Launching HelloWorld.woa ... java -DWORootDirectory="/opt/Apple" -DWOLocalRootDirectory="/opt/Apple/Local" -DWOUserDirectory="/opt/Apple/Local/Library/WebObjects/Applications/ HelloWorld.woa" -classpath " /opt/Apple/Local/Library/WebObjects/Applications/HelloWorld.woa/ Contents/Resources/Java/helloworld.jar: /opt/Apple/Library/Frameworks/JavaFoundation.framework/Resources/ Java/javafoundation.jar: /opt/Apple/Library/Frameworks/JavaXML.framework/Resources/Java/ javaxml.jar: /opt/Apple/Library/Frameworks/JavaEOControl.framework/Resources/ Java/javaeocontrol.jar: /opt/Apple/Li
Re: SSDD and ProjectWonder
I had the same issue and did just that. Works well enough to count as a solution. Jonny On 8/27/07, Travis Britt <[EMAIL PROTECTED]> wrote: > > On Aug 27, 2007, at 12:21 AM, Tarun Reddy wrote: > > Simply switching Application back back to WOApplication (reverting > > steps 3 and 4 below) restores the application to working status. > > Search for servlet and ERXApplication on the wonder-disc list. > > Basically, Application.main() isn't called when the WO app is run in > a servlet container, which is a problem for ERXApplication. You might > be able to get around this by subclassing WOServletAdaptor and > overriding init() to call ERXApplication.setup(). That's as far as I > got when I was dealing with this a few months ago. (We're no longer > deploying in servlet containers and without the pressing need I > haven't had time to look into it again.) > > tb > ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: SSDD and ProjectWonder
On Aug 27, 2007, at 12:21 AM, Tarun Reddy wrote: Simply switching Application back back to WOApplication (reverting steps 3 and 4 below) restores the application to working status. Search for servlet and ERXApplication on the wonder-disc list. Basically, Application.main() isn't called when the WO app is run in a servlet container, which is a problem for ERXApplication. You might be able to get around this by subclassing WOServletAdaptor and overriding init() to call ERXApplication.setup(). That's as far as I got when I was dealing with this a few months ago. (We're no longer deploying in servlet containers and without the pressing need I haven't had time to look into it again.) tb ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
Re: Monitor Forgetfulness on intel?
hmmm...tried doing that and it still does not workshould I increase sleep
to a higher number?
Or, perhaps I'm typing incorrectly...the first few lines of the file:
#!/bin/sh
sleep 5
export PATH
PATH=/usr/xpg4/bin:${PATH}:/bin:/usr/bin
.
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How does WO enforce serial request processing per session?
Hi List, I was wondering how WebObjects enforces serial access to the WOSession (ie. request processing). Does the "wo" request handler enforce serial access? Does the"wa" request handler enforce serial access? Does Application.dispatchRequest() enforce serial access? Also, if I was to access a WOSession outside of a request-response loop, how can I ensure that the WOSession is not processing a request at the same time? How can I ensure that only one Thread accesses the WOSession at a time that comes from a "da" request? How do I initialise the WOSession correctly if I need access to it when not coming from a "wo" request the "wosid" is not sent along with a "wa" request? Is WOApplication.restoreSessionWithID() going to do "the right thing" when ever I call it? ie. is it going to initialize the WOSession correctly? will it ensure serial access to the WOSession? etc... Thanks -- Peter Vandoros Software Engineer Etech Group Pty Ltd Level 3/21 Victoria St Melbourne VIC 3000 Australia Ph: +61 3 9639 9677 Fax: +61 3 9639 9577 -- IMPORTANT: This e-mail message and any attachments are confidential and may be privileged. If received in error, please reply to this message and destroy all copies and any attachments. You should check this message and any attachments for viruses or defects. Our liability is limited to resupplying any affected message or attachments. For more information about Etech Group, please visit us at http://www.etechgroup.com.au. ___ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
