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Posted to user@struts.apache.org by Piero Sartini <li...@pierosartini.de> on 2007/02/27 12:41:37 UTC
Problem with 2.0.6
upgraded to 2.0.6 - now the error below is thrown when accessing an Action
with validators.
dont know if it is important, but ajax-validation is enabled and the
annotation looks like this:
--- code ---
@RequiredStringValidator(message = "Login is required", key
= "error.loginname.missing")
public String getLogin() {
return login;
}
--- code ---
Exec[0]: validator.doPost()
Caught OgnlException while setting property 'methodName' on
type 'com.opensymphony.xwork2.validator.validators.RequiredStringValidator'.
ognl.NoSuchPropertyException:
com.opensymphony.xwork2.validator.validators.RequiredStringValidator.methodName
at
ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:132)
at
com.opensymphony.xwork2.util.OgnlValueStack$ObjectAccessor.setProperty(OgnlValueStack.java:68)
at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656)
at ognl.ASTProperty.setValueBody(ASTProperty.java:101)
at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177)
at ognl.SimpleNode.setValue(SimpleNode.java:246)
at ognl.Ognl.setValue(Ognl.java:476)
at com.opensymphony.xwork2.util.OgnlUtil.setValue(OgnlUtil.java:186)
at
com.opensymphony.xwork2.util.OgnlUtil.internalSetProperty(OgnlUtil.java:360)
at
com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:76)
at
com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:103)
at
com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:90)
at
com.opensymphony.xwork2.ObjectFactory.buildValidator(ObjectFactory.java:234)
at
com.opensymphony.xwork2.validator.ValidatorFactory.getValidator(ValidatorFactory.java:252)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:79)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:134)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:109)
at
com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:96)
at
com.opensymphony.xwork2.validator.ValidationInterceptor.doBeforeInvocation(ValidationInterceptor.java:142)
at
com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:148)
at
org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
at
com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
at
com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219)
....
....
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Re: Problem with 2.0.6
Posted by Piero Sartini <li...@pierosartini.de>.
Thanks for clearing this config option.
But the error does not go away with DevMode set to false.
Am Donnerstag, 1. März 2007 schrieb Ted Husted:
> In DevMode, the framework logs a number of extra warnings. In this
> case, a control is being submitted that doesn't have a corresponding
> property. This might be OK (and probably is), but in DevMode, the
> framework nags us just to be sure.
>
> In production or late development, always set DevMode to false, since
> in DevMode the framework does a number of other similar things that
> can be helpful during development but are painful otherwise.
>
> I opened a ticket today to default our example applications to
> DevMode=false so as to alleviate some of the confusion.
>
> -Ted.
>
> On 2/28/07, Piero Sartini <li...@pierosartini.de> wrote:
> > Am Mittwoch, 28. Februar 2007 schrieb Ted Husted:
> > > Is DevMode set to false?
> >
> > no, its set to true.
>
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Re: Problem with 2.0.6
Posted by Ted Husted <hu...@apache.org>.
In DevMode, the framework logs a number of extra warnings. In this
case, a control is being submitted that doesn't have a corresponding
property. This might be OK (and probably is), but in DevMode, the
framework nags us just to be sure.
In production or late development, always set DevMode to false, since
in DevMode the framework does a number of other similar things that
can be helpful during development but are painful otherwise.
I opened a ticket today to default our example applications to
DevMode=false so as to alleviate some of the confusion.
-Ted.
On 2/28/07, Piero Sartini <li...@pierosartini.de> wrote:
> Am Mittwoch, 28. Februar 2007 schrieb Ted Husted:
> > Is DevMode set to false?
>
> no, its set to true.
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Re: Problem with 2.0.6
Posted by Piero Sartini <li...@pierosartini.de>.
Am Mittwoch, 28. Februar 2007 schrieb Ted Husted:
> Is DevMode set to false?
no, its set to true.
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Re: Problem with 2.0.6
Posted by Ted Husted <hu...@apache.org>.
Is DevMode set to false?
<struts>
<constant name="struts.devMode" value="false" />
...
</struts>
-Ted.
On 2/27/07, Piero Sartini <li...@pierosartini.de> wrote:
> upgraded to 2.0.6 - now the error below is thrown when accessing an Action
> with validators.
>
> dont know if it is important, but ajax-validation is enabled and the
> annotation looks like this:
>
> --- code ---
> @RequiredStringValidator(message = "Login is required", key
> = "error.loginname.missing")
> public String getLogin() {
> return login;
> }
> --- code ---
>
>
> Exec[0]: validator.doPost()
> Caught OgnlException while setting property 'methodName' on
> type 'com.opensymphony.xwork2.validator.validators.RequiredStringValidator'.
> ognl.NoSuchPropertyException:
> com.opensymphony.xwork2.validator.validators.RequiredStringValidator.methodName
> at
> ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:132)
> at
> com.opensymphony.xwork2.util.OgnlValueStack$ObjectAccessor.setProperty(OgnlValueStack.java:68)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656)
> at ognl.ASTProperty.setValueBody(ASTProperty.java:101)
> at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177)
> at ognl.SimpleNode.setValue(SimpleNode.java:246)
> at ognl.Ognl.setValue(Ognl.java:476)
> at com.opensymphony.xwork2.util.OgnlUtil.setValue(OgnlUtil.java:186)
> at
> com.opensymphony.xwork2.util.OgnlUtil.internalSetProperty(OgnlUtil.java:360)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:76)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:103)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:90)
> at
> com.opensymphony.xwork2.ObjectFactory.buildValidator(ObjectFactory.java:234)
> at
> com.opensymphony.xwork2.validator.ValidatorFactory.getValidator(ValidatorFactory.java:252)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:79)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:134)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:109)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:96)
> at
> com.opensymphony.xwork2.validator.ValidationInterceptor.doBeforeInvocation(ValidationInterceptor.java:142)
> at
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:148)
> at
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
> at
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
> at
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219)
>
> ....
> ....
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
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>
>
--
HTH, Ted.
* http://www.husted.com/struts/
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RE: Real time data display in a struts based application.
Posted by Jose Maria Alvarez Rodriguez <Jo...@fundacionctic.org>.
Hi!
Well, I think that the your technical design requirement can be developed using Ajax technologies. In J2EE we have e.g. DWR, http://getahead.ltd.uk/dwr/, to use Ajax inside web applications, but the problem could be the comunication server-client because the request to update data in client tier is thrown from server, this issue causes the need of a listener to attend server requests, in http://ajaxpatterns.org/Patterns#Browser-Server_Dialogue you can find information about dialogue patterns between client and server, also Ajax Patterns web site is a good way to start with ajax tecnologies.
That`s all¡
Regards, Ch.
--
Jose María Alvarez Rodriguez
Departamento de I+D+I - Fundación CTIC
-Centro Tecnológico de la Información y la Comunicación-
E-mail: josem.alvarez@fundacionctic.org
Tfno:+34 984 29 12 12
Parque Científico Tecnológico Gijón-Asturias-Spain
www.fundacionctic.org
-----Mensaje original-----
De: Maya menon [mailto:maya_java@yahoo.com]
Enviado el: mié 28/02/2007 21:54
Para: Struts Users Mailing List
Asunto: Real time data display in a struts based application.
All,
Have a design issue here. We have a web based application and have 2000 concurrent users. The requirement is: when new data comes on Oracle database for users this data has to be sent to the online users on a real time basis. Someway, the real time data needs to be pushed to the users without the client doing a reload/refresh etc.
What technologies can be used here ? Can anyone provide me some suggestions ?
The users login to the application using a web page, this is a web based J2ee application using struts, Oracle database.
Thanks,
Maya
---------------------------------
Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
Re: Real time data display in a struts based application.
Posted by Dave Newton <ne...@yahoo.com>.
--- Maya menon <ma...@yahoo.com> wrote:
> I really dont think we can download any of these
> external libraries.
I would highly recommend using a library.
If nothing else you'll want Prototype (or a variant,
like prototype-lite etc.) for writing the Javascript
if for no other reason than to avoid writing
cross-browser Javascript, which is just no fun.
d.
____________________________________________________________________________________
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Re: Real time data display in a struts based application.
Posted by Maya menon <ma...@yahoo.com>.
Musachy,
Yes, we use struts 1.x, and I really dont think we can download any of these external libraries.
So said so, I have to write javascript etc to achive these "AJAX timed events"..
Any one has done it to achieve it ?
I believe javascript,XML etc are needed.. any examples.
Musachy Barroso <mu...@gmail.com> wrote:
Oops...I can't help it, I always assume we are talking about S2. If you are
using S1, pick an ajax framework, most of them have a Div tag like the one
on S2. See Frank's email for details on one of them.
musachy
On 2/28/07, Maya menon wrote:
>
> Thanks Musachy for your response.
> We use Struts 1.x right now.. Guess we have to update..
> Please send me if yu have any examples/links..
>
>
> Musachy Barroso wrote:
> You can refresh the page, but that would probably be annoying to the
> user,
> not to mention that data entered on fields will most likely be lost. Using
> a
> div you can update just the part of the page that is important. Using the
> div tag in struts:
>
>
>
> theme="ajax"
> href="%{ajaxTest}"
> updateFreq="3000"/>
>
> that will make your div reload the content from "AjaxTest.action" every
> 3000
> milliseconds. There are many frameworks available, so you can pick one
> that
> fits your needs. For simple scenarios, the div tag will do.
>
> musachy
>
> On 2/28/07, Maya menon wrote:
> >
> > Thank you both for your responses.
> >
> > So AJAX is the technique I should refer. Anyone know of any examples /
> > somethings.
> >
> > Also, my colleague asked me this question when I talked to him about a
> > "timed AJAX event". Why cant we simply refresh the jsp page ? Why should
> we
> > use AJAX ? so, whats the real advantage of using an AJAX timed event to
> a
> > normal JSP/HTML refresh ?
> >
> > Maya
> >
> > Musachy Barroso wrote:
> > The div tag when used on the ajax theme, has a timer that will make it
> > refresh its content from the url specified in the "href" attribute,
> > examples
> > available in showcase and here:
> >
> > http://struts.apache.org/2.x/docs/ajax-tags.html
> >
> > musachy
> >
> > On 2/28/07, Frank W. Zammetti wrote:
> > >
> > > Well, if you can live with not literally "pushing" to the client, this
> > is
> > > the sort of application AJAX was made for. Have a timed event, every
> few
> > > seconds maybe, whatever your tolerable definition of "real time" is,
> > that
> > > makes and AJAX request to check for new data and display it when
> found.
> > > Pretty easy.
> > >
> > > Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
> > >
> > > http://javawebparts.sourceforge.net
> > >
> > >
> >
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
> > >
> > > The benefit is that it will allow you to do this, since it has a timed
> > > AJAX event function, and will save you from having to write any
> > Javascript
> > > yourself (most likely).
> > >
> > > Whether you go with APT or not, AJAX is probably the first thing you
> > want
> > > to look at.
> > >
> > > Frank
> > >
> > >
> > > --
> > > Frank W. Zammetti
> > > Founder and Chief Software Architect
> > > Omnytex Technologies
> > > http://www.omnytex.com
> > > AIM/Yahoo: fzammetti
> > > MSN: fzammetti@hotmail.com
> > > Author of "Practical Ajax Projects With Java Technology"
> > > (2006, Apress, ISBN 1-59059-695-1)
> > > Java Web Parts - http://javawebparts.sourceforge.net
> > > Supplying the wheel, so you don't have to reinvent it!
> > >
> > > On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > > > All,
> > > >
> > > > Have a design issue here. We have a web based application and have
> > > 2000
> > > > concurrent users. The requirement is: when new data comes on Oracle
> > > > database for users this data has to be sent to the online users on a
> > > > real time basis. Someway, the real time data needs to be pushed to
> the
> > > > users without the client doing a reload/refresh etc.
> > > >
> > > > What technologies can be used here ? Can anyone provide me some
> > > > suggestions ?
> > > >
> > > > The users login to the application using a web page, this is a web
> > > based
> > > > J2ee application using struts, Oracle database.
> > > >
> > > > Thanks,
> > > > Maya
> > > >
> > > >
> > > > ---------------------------------
> > > > Any questions? Get answers on any topic at Yahoo! Answers. Try it
> now.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> >
> >
> > --
> > "Hey you! Would you help me to carry the stone?" Pink Floyd
> >
> >
> >
> > ---------------------------------
> > Never Miss an Email
> > Stay connected with Yahoo! Mail on your mobile. Get started!
>
>
>
>
> --
> "Hey you! Would you help me to carry the stone?" Pink Floyd
>
>
>
> ---------------------------------
> Never miss an email again!
> Yahoo! Toolbar alerts you the instant new Mail arrives. Check it out.
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
---------------------------------
Now that's room service! Choose from over 150,000 hotels
in 45,000 destinations on Yahoo! Travel to find your fit.
Re: Real time data display in a struts based application.
Posted by Musachy Barroso <mu...@gmail.com>.
Oops...I can't help it, I always assume we are talking about S2. If you are
using S1, pick an ajax framework, most of them have a Div tag like the one
on S2. See Frank's email for details on one of them.
musachy
On 2/28/07, Maya menon <ma...@yahoo.com> wrote:
>
> Thanks Musachy for your response.
> We use Struts 1.x right now.. Guess we have to update..
> Please send me if yu have any examples/links..
>
>
> Musachy Barroso <mu...@gmail.com> wrote:
> You can refresh the page, but that would probably be annoying to the
> user,
> not to mention that data entered on fields will most likely be lost. Using
> a
> div you can update just the part of the page that is important. Using the
> div tag in struts:
>
>
>
> theme="ajax"
> href="%{ajaxTest}"
> updateFreq="3000"/>
>
> that will make your div reload the content from "AjaxTest.action" every
> 3000
> milliseconds. There are many frameworks available, so you can pick one
> that
> fits your needs. For simple scenarios, the div tag will do.
>
> musachy
>
> On 2/28/07, Maya menon wrote:
> >
> > Thank you both for your responses.
> >
> > So AJAX is the technique I should refer. Anyone know of any examples /
> > somethings.
> >
> > Also, my colleague asked me this question when I talked to him about a
> > "timed AJAX event". Why cant we simply refresh the jsp page ? Why should
> we
> > use AJAX ? so, whats the real advantage of using an AJAX timed event to
> a
> > normal JSP/HTML refresh ?
> >
> > Maya
> >
> > Musachy Barroso wrote:
> > The div tag when used on the ajax theme, has a timer that will make it
> > refresh its content from the url specified in the "href" attribute,
> > examples
> > available in showcase and here:
> >
> > http://struts.apache.org/2.x/docs/ajax-tags.html
> >
> > musachy
> >
> > On 2/28/07, Frank W. Zammetti wrote:
> > >
> > > Well, if you can live with not literally "pushing" to the client, this
> > is
> > > the sort of application AJAX was made for. Have a timed event, every
> few
> > > seconds maybe, whatever your tolerable definition of "real time" is,
> > that
> > > makes and AJAX request to check for new data and display it when
> found.
> > > Pretty easy.
> > >
> > > Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
> > >
> > > http://javawebparts.sourceforge.net
> > >
> > >
> >
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
> > >
> > > The benefit is that it will allow you to do this, since it has a timed
> > > AJAX event function, and will save you from having to write any
> > Javascript
> > > yourself (most likely).
> > >
> > > Whether you go with APT or not, AJAX is probably the first thing you
> > want
> > > to look at.
> > >
> > > Frank
> > >
> > >
> > > --
> > > Frank W. Zammetti
> > > Founder and Chief Software Architect
> > > Omnytex Technologies
> > > http://www.omnytex.com
> > > AIM/Yahoo: fzammetti
> > > MSN: fzammetti@hotmail.com
> > > Author of "Practical Ajax Projects With Java Technology"
> > > (2006, Apress, ISBN 1-59059-695-1)
> > > Java Web Parts - http://javawebparts.sourceforge.net
> > > Supplying the wheel, so you don't have to reinvent it!
> > >
> > > On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > > > All,
> > > >
> > > > Have a design issue here. We have a web based application and have
> > > 2000
> > > > concurrent users. The requirement is: when new data comes on Oracle
> > > > database for users this data has to be sent to the online users on a
> > > > real time basis. Someway, the real time data needs to be pushed to
> the
> > > > users without the client doing a reload/refresh etc.
> > > >
> > > > What technologies can be used here ? Can anyone provide me some
> > > > suggestions ?
> > > >
> > > > The users login to the application using a web page, this is a web
> > > based
> > > > J2ee application using struts, Oracle database.
> > > >
> > > > Thanks,
> > > > Maya
> > > >
> > > >
> > > > ---------------------------------
> > > > Any questions? Get answers on any topic at Yahoo! Answers. Try it
> now.
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > > For additional commands, e-mail: user-help@struts.apache.org
> > >
> > >
> >
> >
> > --
> > "Hey you! Would you help me to carry the stone?" Pink Floyd
> >
> >
> >
> > ---------------------------------
> > Never Miss an Email
> > Stay connected with Yahoo! Mail on your mobile. Get started!
>
>
>
>
> --
> "Hey you! Would you help me to carry the stone?" Pink Floyd
>
>
>
> ---------------------------------
> Never miss an email again!
> Yahoo! Toolbar alerts you the instant new Mail arrives. Check it out.
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
Re: Real time data display in a struts based application.
Posted by Maya menon <ma...@yahoo.com>.
Thanks Musachy for your response.
We use Struts 1.x right now.. Guess we have to update..
Please send me if yu have any examples/links..
Musachy Barroso <mu...@gmail.com> wrote:
You can refresh the page, but that would probably be annoying to the user,
not to mention that data entered on fields will most likely be lost. Using a
div you can update just the part of the page that is important. Using the
div tag in struts:
theme="ajax"
href="%{ajaxTest}"
updateFreq="3000"/>
that will make your div reload the content from "AjaxTest.action" every 3000
milliseconds. There are many frameworks available, so you can pick one that
fits your needs. For simple scenarios, the div tag will do.
musachy
On 2/28/07, Maya menon wrote:
>
> Thank you both for your responses.
>
> So AJAX is the technique I should refer. Anyone know of any examples /
> somethings.
>
> Also, my colleague asked me this question when I talked to him about a
> "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we
> use AJAX ? so, whats the real advantage of using an AJAX timed event to a
> normal JSP/HTML refresh ?
>
> Maya
>
> Musachy Barroso wrote:
> The div tag when used on the ajax theme, has a timer that will make it
> refresh its content from the url specified in the "href" attribute,
> examples
> available in showcase and here:
>
> http://struts.apache.org/2.x/docs/ajax-tags.html
>
> musachy
>
> On 2/28/07, Frank W. Zammetti wrote:
> >
> > Well, if you can live with not literally "pushing" to the client, this
> is
> > the sort of application AJAX was made for. Have a timed event, every few
> > seconds maybe, whatever your tolerable definition of "real time" is,
> that
> > makes and AJAX request to check for new data and display it when found.
> > Pretty easy.
> >
> > Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
> >
> > http://javawebparts.sourceforge.net
> >
> >
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
> >
> > The benefit is that it will allow you to do this, since it has a timed
> > AJAX event function, and will save you from having to write any
> Javascript
> > yourself (most likely).
> >
> > Whether you go with APT or not, AJAX is probably the first thing you
> want
> > to look at.
> >
> > Frank
> >
> >
> > --
> > Frank W. Zammetti
> > Founder and Chief Software Architect
> > Omnytex Technologies
> > http://www.omnytex.com
> > AIM/Yahoo: fzammetti
> > MSN: fzammetti@hotmail.com
> > Author of "Practical Ajax Projects With Java Technology"
> > (2006, Apress, ISBN 1-59059-695-1)
> > Java Web Parts - http://javawebparts.sourceforge.net
> > Supplying the wheel, so you don't have to reinvent it!
> >
> > On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > > All,
> > >
> > > Have a design issue here. We have a web based application and have
> > 2000
> > > concurrent users. The requirement is: when new data comes on Oracle
> > > database for users this data has to be sent to the online users on a
> > > real time basis. Someway, the real time data needs to be pushed to the
> > > users without the client doing a reload/refresh etc.
> > >
> > > What technologies can be used here ? Can anyone provide me some
> > > suggestions ?
> > >
> > > The users login to the application using a web page, this is a web
> > based
> > > J2ee application using struts, Oracle database.
> > >
> > > Thanks,
> > > Maya
> > >
> > >
> > > ---------------------------------
> > > Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
>
>
> --
> "Hey you! Would you help me to carry the stone?" Pink Floyd
>
>
>
> ---------------------------------
> Never Miss an Email
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Re: Real time data display in a struts based application.
Posted by Musachy Barroso <mu...@gmail.com>.
You can refresh the page, but that would probably be annoying to the user,
not to mention that data entered on fields will most likely be lost. Using a
div you can update just the part of the page that is important. Using the
div tag in struts:
<s:url id="ajaxTest" value="/AjaxTest.action" />
<s:div
theme="ajax"
href="%{ajaxTest}"
updateFreq="3000"/>
that will make your div reload the content from "AjaxTest.action" every 3000
milliseconds. There are many frameworks available, so you can pick one that
fits your needs. For simple scenarios, the div tag will do.
musachy
On 2/28/07, Maya menon <ma...@yahoo.com> wrote:
>
> Thank you both for your responses.
>
> So AJAX is the technique I should refer. Anyone know of any examples /
> somethings.
>
> Also, my colleague asked me this question when I talked to him about a
> "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we
> use AJAX ? so, whats the real advantage of using an AJAX timed event to a
> normal JSP/HTML refresh ?
>
> Maya
>
> Musachy Barroso <mu...@gmail.com> wrote:
> The div tag when used on the ajax theme, has a timer that will make it
> refresh its content from the url specified in the "href" attribute,
> examples
> available in showcase and here:
>
> http://struts.apache.org/2.x/docs/ajax-tags.html
>
> musachy
>
> On 2/28/07, Frank W. Zammetti wrote:
> >
> > Well, if you can live with not literally "pushing" to the client, this
> is
> > the sort of application AJAX was made for. Have a timed event, every few
> > seconds maybe, whatever your tolerable definition of "real time" is,
> that
> > makes and AJAX request to check for new data and display it when found.
> > Pretty easy.
> >
> > Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
> >
> > http://javawebparts.sourceforge.net
> >
> >
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
> >
> > The benefit is that it will allow you to do this, since it has a timed
> > AJAX event function, and will save you from having to write any
> Javascript
> > yourself (most likely).
> >
> > Whether you go with APT or not, AJAX is probably the first thing you
> want
> > to look at.
> >
> > Frank
> >
> >
> > --
> > Frank W. Zammetti
> > Founder and Chief Software Architect
> > Omnytex Technologies
> > http://www.omnytex.com
> > AIM/Yahoo: fzammetti
> > MSN: fzammetti@hotmail.com
> > Author of "Practical Ajax Projects With Java Technology"
> > (2006, Apress, ISBN 1-59059-695-1)
> > Java Web Parts - http://javawebparts.sourceforge.net
> > Supplying the wheel, so you don't have to reinvent it!
> >
> > On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > > All,
> > >
> > > Have a design issue here. We have a web based application and have
> > 2000
> > > concurrent users. The requirement is: when new data comes on Oracle
> > > database for users this data has to be sent to the online users on a
> > > real time basis. Someway, the real time data needs to be pushed to the
> > > users without the client doing a reload/refresh etc.
> > >
> > > What technologies can be used here ? Can anyone provide me some
> > > suggestions ?
> > >
> > > The users login to the application using a web page, this is a web
> > based
> > > J2ee application using struts, Oracle database.
> > >
> > > Thanks,
> > > Maya
> > >
> > >
> > > ---------------------------------
> > > Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
>
>
> --
> "Hey you! Would you help me to carry the stone?" Pink Floyd
>
>
>
> ---------------------------------
> Never Miss an Email
> Stay connected with Yahoo! Mail on your mobile. Get started!
--
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Re: Real time data display in a struts based application.
Posted by Michael Jouravlev <jm...@gmail.com>.
On 2/28/07, Maya menon <ma...@yahoo.com> wrote:
> Also, my colleague asked me this question when I talked to him about a "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we use AJAX ? so, whats the real advantage of using an AJAX timed event to a normal JSP/HTML refresh ?
You can. Ajax makes UI smoother and more user-friendly. Not to say
that less data is transferred.
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Re: Real time data display in a struts based application.
Posted by Maya menon <ma...@yahoo.com>.
Ok, got the difference.
Now being a new bie to AJAX, what are the best techiques that should be used to design a well designed web app ?
Again, my page has to show the new data thats being added to database.
Frank told about creating a "timed AJAX event". Where can I get more details regarding that ? Again will it be possible /scalable for 2000 concurrent users ?
Thanks
Adam Ruggles <a....@gmail.com> wrote:
The difference between using AJAX and just refreshing a page is a well
designed AJAX application sends over just the information that is
needed. For a JSP/HTML page refresh you're sending more data over the
line. The key here is a well designed AJAX application.
Maya menon wrote:
> Thank you both for your responses.
>
> So AJAX is the technique I should refer. Anyone know of any examples / somethings.
>
> Also, my colleague asked me this question when I talked to him about a "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we use AJAX ? so, whats the real advantage of using an AJAX timed event to a normal JSP/HTML refresh ?
>
> Maya
>
> Musachy Barroso wrote:
> The div tag when used on the ajax theme, has a timer that will make it
> refresh its content from the url specified in the "href" attribute, examples
> available in showcase and here:
>
> http://struts.apache.org/2.x/docs/ajax-tags.html
>
> musachy
>
> On 2/28/07, Frank W. Zammetti wrote:
>
>> Well, if you can live with not literally "pushing" to the client, this is
>> the sort of application AJAX was made for. Have a timed event, every few
>> seconds maybe, whatever your tolerable definition of "real time" is, that
>> makes and AJAX request to check for new data and display it when found.
>> Pretty easy.
>>
>> Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
>>
>> http://javawebparts.sourceforge.net
>>
>> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
>>
>> The benefit is that it will allow you to do this, since it has a timed
>> AJAX event function, and will save you from having to write any Javascript
>> yourself (most likely).
>>
>> Whether you go with APT or not, AJAX is probably the first thing you want
>> to look at.
>>
>> Frank
>>
>>
>> --
>> Frank W. Zammetti
>> Founder and Chief Software Architect
>> Omnytex Technologies
>> http://www.omnytex.com
>> AIM/Yahoo: fzammetti
>> MSN: fzammetti@hotmail.com
>> Author of "Practical Ajax Projects With Java Technology"
>> (2006, Apress, ISBN 1-59059-695-1)
>> Java Web Parts - http://javawebparts.sourceforge.net
>> Supplying the wheel, so you don't have to reinvent it!
>>
>> On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
>>
>>> All,
>>>
>>> Have a design issue here. We have a web based application and have
>>>
>> 2000
>>
>>> concurrent users. The requirement is: when new data comes on Oracle
>>> database for users this data has to be sent to the online users on a
>>> real time basis. Someway, the real time data needs to be pushed to the
>>> users without the client doing a reload/refresh etc.
>>>
>>> What technologies can be used here ? Can anyone provide me some
>>> suggestions ?
>>>
>>> The users login to the application using a web page, this is a web
>>>
>> based
>>
>>> J2ee application using struts, Oracle database.
>>>
>>> Thanks,
>>> Maya
>>>
>>>
>>> ---------------------------------
>>> Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
>>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>>
>
>
>
---------------------------------
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Re: Real time data display in a struts based application.
Posted by Adam Ruggles <a....@gmail.com>.
The difference between using AJAX and just refreshing a page is a well
designed AJAX application sends over just the information that is
needed. For a JSP/HTML page refresh you're sending more data over the
line. The key here is a well designed AJAX application.
Maya menon wrote:
> Thank you both for your responses.
>
> So AJAX is the technique I should refer. Anyone know of any examples / somethings.
>
> Also, my colleague asked me this question when I talked to him about a "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we use AJAX ? so, whats the real advantage of using an AJAX timed event to a normal JSP/HTML refresh ?
>
> Maya
>
> Musachy Barroso <mu...@gmail.com> wrote:
> The div tag when used on the ajax theme, has a timer that will make it
> refresh its content from the url specified in the "href" attribute, examples
> available in showcase and here:
>
> http://struts.apache.org/2.x/docs/ajax-tags.html
>
> musachy
>
> On 2/28/07, Frank W. Zammetti wrote:
>
>> Well, if you can live with not literally "pushing" to the client, this is
>> the sort of application AJAX was made for. Have a timed event, every few
>> seconds maybe, whatever your tolerable definition of "real time" is, that
>> makes and AJAX request to check for new data and display it when found.
>> Pretty easy.
>>
>> Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
>>
>> http://javawebparts.sourceforge.net
>>
>> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
>>
>> The benefit is that it will allow you to do this, since it has a timed
>> AJAX event function, and will save you from having to write any Javascript
>> yourself (most likely).
>>
>> Whether you go with APT or not, AJAX is probably the first thing you want
>> to look at.
>>
>> Frank
>>
>>
>> --
>> Frank W. Zammetti
>> Founder and Chief Software Architect
>> Omnytex Technologies
>> http://www.omnytex.com
>> AIM/Yahoo: fzammetti
>> MSN: fzammetti@hotmail.com
>> Author of "Practical Ajax Projects With Java Technology"
>> (2006, Apress, ISBN 1-59059-695-1)
>> Java Web Parts - http://javawebparts.sourceforge.net
>> Supplying the wheel, so you don't have to reinvent it!
>>
>> On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
>>
>>> All,
>>>
>>> Have a design issue here. We have a web based application and have
>>>
>> 2000
>>
>>> concurrent users. The requirement is: when new data comes on Oracle
>>> database for users this data has to be sent to the online users on a
>>> real time basis. Someway, the real time data needs to be pushed to the
>>> users without the client doing a reload/refresh etc.
>>>
>>> What technologies can be used here ? Can anyone provide me some
>>> suggestions ?
>>>
>>> The users login to the application using a web page, this is a web
>>>
>> based
>>
>>> J2ee application using struts, Oracle database.
>>>
>>> Thanks,
>>> Maya
>>>
>>>
>>> ---------------------------------
>>> Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
>>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>>
>
>
>
Re: Real time data display in a struts based application.
Posted by Maya menon <ma...@yahoo.com>.
Thank you both for your responses.
So AJAX is the technique I should refer. Anyone know of any examples / somethings.
Also, my colleague asked me this question when I talked to him about a "timed AJAX event". Why cant we simply refresh the jsp page ? Why should we use AJAX ? so, whats the real advantage of using an AJAX timed event to a normal JSP/HTML refresh ?
Maya
Musachy Barroso <mu...@gmail.com> wrote:
The div tag when used on the ajax theme, has a timer that will make it
refresh its content from the url specified in the "href" attribute, examples
available in showcase and here:
http://struts.apache.org/2.x/docs/ajax-tags.html
musachy
On 2/28/07, Frank W. Zammetti wrote:
>
> Well, if you can live with not literally "pushing" to the client, this is
> the sort of application AJAX was made for. Have a timed event, every few
> seconds maybe, whatever your tolerable definition of "real time" is, that
> makes and AJAX request to check for new data and display it when found.
> Pretty easy.
>
> Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
>
> http://javawebparts.sourceforge.net
>
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
>
> The benefit is that it will allow you to do this, since it has a timed
> AJAX event function, and will save you from having to write any Javascript
> yourself (most likely).
>
> Whether you go with APT or not, AJAX is probably the first thing you want
> to look at.
>
> Frank
>
>
> --
> Frank W. Zammetti
> Founder and Chief Software Architect
> Omnytex Technologies
> http://www.omnytex.com
> AIM/Yahoo: fzammetti
> MSN: fzammetti@hotmail.com
> Author of "Practical Ajax Projects With Java Technology"
> (2006, Apress, ISBN 1-59059-695-1)
> Java Web Parts - http://javawebparts.sourceforge.net
> Supplying the wheel, so you don't have to reinvent it!
>
> On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > All,
> >
> > Have a design issue here. We have a web based application and have
> 2000
> > concurrent users. The requirement is: when new data comes on Oracle
> > database for users this data has to be sent to the online users on a
> > real time basis. Someway, the real time data needs to be pushed to the
> > users without the client doing a reload/refresh etc.
> >
> > What technologies can be used here ? Can anyone provide me some
> > suggestions ?
> >
> > The users login to the application using a web page, this is a web
> based
> > J2ee application using struts, Oracle database.
> >
> > Thanks,
> > Maya
> >
> >
> > ---------------------------------
> > Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
---------------------------------
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Re: Real time data display in a struts based application.
Posted by Musachy Barroso <mu...@gmail.com>.
The div tag when used on the ajax theme, has a timer that will make it
refresh its content from the url specified in the "href" attribute, examples
available in showcase and here:
http://struts.apache.org/2.x/docs/ajax-tags.html
musachy
On 2/28/07, Frank W. Zammetti <fz...@omnytex.com> wrote:
>
> Well, if you can live with not literally "pushing" to the client, this is
> the sort of application AJAX was made for. Have a timed event, every few
> seconds maybe, whatever your tolerable definition of "real time" is, that
> makes and AJAX request to check for new data and display it when found.
> Pretty easy.
>
> Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
>
> http://javawebparts.sourceforge.net
>
> http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
>
> The benefit is that it will allow you to do this, since it has a timed
> AJAX event function, and will save you from having to write any Javascript
> yourself (most likely).
>
> Whether you go with APT or not, AJAX is probably the first thing you want
> to look at.
>
> Frank
>
>
> --
> Frank W. Zammetti
> Founder and Chief Software Architect
> Omnytex Technologies
> http://www.omnytex.com
> AIM/Yahoo: fzammetti
> MSN: fzammetti@hotmail.com
> Author of "Practical Ajax Projects With Java Technology"
> (2006, Apress, ISBN 1-59059-695-1)
> Java Web Parts - http://javawebparts.sourceforge.net
> Supplying the wheel, so you don't have to reinvent it!
>
> On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> > All,
> >
> > Have a design issue here. We have a web based application and have
> 2000
> > concurrent users. The requirement is: when new data comes on Oracle
> > database for users this data has to be sent to the online users on a
> > real time basis. Someway, the real time data needs to be pushed to the
> > users without the client doing a reload/refresh etc.
> >
> > What technologies can be used here ? Can anyone provide me some
> > suggestions ?
> >
> > The users login to the application using a web page, this is a web
> based
> > J2ee application using struts, Oracle database.
> >
> > Thanks,
> > Maya
> >
> >
> > ---------------------------------
> > Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
--
"Hey you! Would you help me to carry the stone?" Pink Floyd
Re: Real time data display in a struts based application.
Posted by "Frank W. Zammetti" <fz...@omnytex.com>.
Well, if you can live with not literally "pushing" to the client, this is
the sort of application AJAX was made for. Have a timed event, every few
seconds maybe, whatever your tolerable definition of "real time" is, that
makes and AJAX request to check for new data and display it when found.
Pretty easy.
Have a peak at the AjaxParts Taglib (APT) in Java Web Parts (JWP):
http://javawebparts.sourceforge.net
http://javawebparts.sourceforge.net/javadocs/javawebparts/ajaxparts/taglib/package-summary.html
The benefit is that it will allow you to do this, since it has a timed
AJAX event function, and will save you from having to write any Javascript
yourself (most likely).
Whether you go with APT or not, AJAX is probably the first thing you want
to look at.
Frank
--
Frank W. Zammetti
Founder and Chief Software Architect
Omnytex Technologies
http://www.omnytex.com
AIM/Yahoo: fzammetti
MSN: fzammetti@hotmail.com
Author of "Practical Ajax Projects With Java Technology"
(2006, Apress, ISBN 1-59059-695-1)
Java Web Parts - http://javawebparts.sourceforge.net
Supplying the wheel, so you don't have to reinvent it!
On Wed, February 28, 2007 3:54 pm, Maya menon wrote:
> All,
>
> Have a design issue here. We have a web based application and have 2000
> concurrent users. The requirement is: when new data comes on Oracle
> database for users this data has to be sent to the online users on a
> real time basis. Someway, the real time data needs to be pushed to the
> users without the client doing a reload/refresh etc.
>
> What technologies can be used here ? Can anyone provide me some
> suggestions ?
>
> The users login to the application using a web page, this is a web based
> J2ee application using struts, Oracle database.
>
> Thanks,
> Maya
>
>
> ---------------------------------
> Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
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Real time data display in a struts based application.
Posted by Maya menon <ma...@yahoo.com>.
All,
Have a design issue here. We have a web based application and have 2000 concurrent users. The requirement is: when new data comes on Oracle database for users this data has to be sent to the online users on a real time basis. Someway, the real time data needs to be pushed to the users without the client doing a reload/refresh etc.
What technologies can be used here ? Can anyone provide me some suggestions ?
The users login to the application using a web page, this is a web based J2ee application using struts, Oracle database.
Thanks,
Maya
---------------------------------
Any questions? Get answers on any topic at Yahoo! Answers. Try it now.
Re: [S2] Problem with 2.0.6
Posted by Piero Sartini <li...@pierosartini.de>.
> I do.
> It looks vicious, but is pretty harmless.
> You could wipe it out of your logs by setting the class that throws it to
> only log ERROR and greater.
I will do it for development - but I hope this gets fixed. Exceptions are the
slowest parts in the jvm as far as I know. Performance cant be good if lots
of exceptions are thrown each time an action gets called ...
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Re: [S2] Problem with 2.0.6
Posted by cilquirm <aa...@gmail.com>.
I do.
It looks vicious, but is pretty harmless.
You could wipe it out of your logs by setting the class that throws it to
only log ERROR and greater.
Piero Sartini-3 wrote:
>
> Am Dienstag, 27. Februar 2007 schrieb cilquirm:
>> I see errors like that on occasion ( mine is with the JSONResult type and
>> the location property ), but they've always been warnings.
>>
>> Is yours logged at the ERROR level?
>
> they are logged at WARNING level. Should I just ignore them? I do not feel
> good with this errors..
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
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Re: [S2] Problem with 2.0.6
Posted by Piero Sartini <li...@pierosartini.de>.
Am Dienstag, 27. Februar 2007 schrieb cilquirm:
> I see errors like that on occasion ( mine is with the JSONResult type and
> the location property ), but they've always been warnings.
>
> Is yours logged at the ERROR level?
they are logged at WARNING level. Should I just ignore them? I do not feel
good with this errors..
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Re: [S2] Problem with 2.0.6
Posted by cilquirm <aa...@gmail.com>.
I see errors like that on occasion ( mine is with the JSONResult type and the
location property ), but they've always been warnings.
Is yours logged at the ERROR level?
Piero Sartini-3 wrote:
>
> upgraded to 2.0.6 - now the error below is thrown when accessing an Action
> with validators.
>
> dont know if it is important, but ajax-validation is enabled and the
> annotation looks like this:
>
> --- code ---
> @RequiredStringValidator(message = "Login is required", key
> = "error.loginname.missing")
> public String getLogin() {
> return login;
> }
> --- code ---
>
>
> Exec[0]: validator.doPost()
> Caught OgnlException while setting property 'methodName' on
> type
> 'com.opensymphony.xwork2.validator.validators.RequiredStringValidator'.
> ognl.NoSuchPropertyException:
> com.opensymphony.xwork2.validator.validators.RequiredStringValidator.methodName
> at
> ognl.ObjectPropertyAccessor.setProperty(ObjectPropertyAccessor.java:132)
> at
> com.opensymphony.xwork2.util.OgnlValueStack$ObjectAccessor.setProperty(OgnlValueStack.java:68)
> at ognl.OgnlRuntime.setProperty(OgnlRuntime.java:1656)
> at ognl.ASTProperty.setValueBody(ASTProperty.java:101)
> at ognl.SimpleNode.evaluateSetValueBody(SimpleNode.java:177)
> at ognl.SimpleNode.setValue(SimpleNode.java:246)
> at ognl.Ognl.setValue(Ognl.java:476)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setValue(OgnlUtil.java:186)
> at
> com.opensymphony.xwork2.util.OgnlUtil.internalSetProperty(OgnlUtil.java:360)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:76)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:103)
> at
> com.opensymphony.xwork2.util.OgnlUtil.setProperties(OgnlUtil.java:90)
> at
> com.opensymphony.xwork2.ObjectFactory.buildValidator(ObjectFactory.java:234)
> at
> com.opensymphony.xwork2.validator.ValidatorFactory.getValidator(ValidatorFactory.java:252)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.getValidators(AnnotationActionValidatorManager.java:79)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:134)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:109)
> at
> com.opensymphony.xwork2.validator.AnnotationActionValidatorManager.validate(AnnotationActionValidatorManager.java:96)
> at
> com.opensymphony.xwork2.validator.ValidationInterceptor.doBeforeInvocation(ValidationInterceptor.java:142)
> at
> com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:148)
> at
> org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)
> at
> com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)
> at
> com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:219)
>
> ....
> ....
>
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