Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- 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.
--- Maya menon [EMAIL PROTECTED] 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. Don't get soaked. Take a quick peak at the forecast with the Yahoo! Search weather shortcut. http://tools.search.yahoo.com/shortcuts/#loc_weather - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - Looking for earth-friendly autos? Browse Top Cars by Green Rating at Yahoo! Autos' Green Center.
Re: Real time data display in a struts based application.
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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- Hey you! Would you help me to carry the stone? Pink Floyd
RE: Real time data display in a struts based application.
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: [EMAIL PROTECTED] Tfno:+34 984 29 12 12 Parque Científico Tecnológico Gijón-Asturias-Spain www.fundacionctic.org -Mensaje original- De: Maya menon [mailto:[EMAIL PROTECTED] 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. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- 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
Re: Real time data display in a struts based application.
On 2/28/07, Maya menon [EMAIL PROTECTED] 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. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- 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.
Re: Real time data display in a struts based application.
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 [EMAIL PROTECTED] 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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- 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.
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 [EMAIL PROTECTED] 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: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]