Re: Benefits of using taglibs...
On Wed, 19 Feb 2003, Ciramella, EJ wrote: My company has ~500 jsps - all of which are scriptlet heavy. I want to propose a change to using taglibs (either custom or directly from the taglib project). What can I site as the benefits? I'm hoping to find a web page or document or something that clearly states some sort of performance increase. Currently, it takes a REALLY long time just to load the login page (which has large scriptlets embedded and it's imports also are 90% scriptlet). I'm guessing that if these things were compiled classes in side a taglib, this would shorten load time and lessen the need to precompile the jsp's. Thanks in advance. The benefits of tag libraries are primarily organizational. You're unlikely to notice a performance improvement when switching from scriptlets to tag libraries; your scriptlet code is being compiled into servlets before it's run. -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Benefits of using taglibs...
Right, so if there are no/very little scriptlet code in the jsps and the tags are already classes, wouldn't this speed thing up at all? -Original Message- From: Shawn Bayern [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 19, 2003 11:16 AM To: Tag Libraries Users List Subject: Re: Benefits of using taglibs... On Wed, 19 Feb 2003, Ciramella, EJ wrote: My company has ~500 jsps - all of which are scriptlet heavy. I want to propose a change to using taglibs (either custom or directly from the taglib project). What can I site as the benefits? I'm hoping to find a web page or document or something that clearly states some sort of performance increase. Currently, it takes a REALLY long time just to load the login page (which has large scriptlets embedded and it's imports also are 90% scriptlet). I'm guessing that if these things were compiled classes in side a taglib, this would shorten load time and lessen the need to precompile the jsp's. Thanks in advance. The benefits of tag libraries are primarily organizational. You're unlikely to notice a performance improvement when switching from scriptlets to tag libraries; your scriptlet code is being compiled into servlets before it's run. -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Benefits of using taglibs...
On Wed, 19 Feb 2003, Ciramella, EJ wrote: Right, so if there are no/very little scriptlet code in the jsps and the tags are already classes, wouldn't this speed thing up at all? No, not at runtime; by the time your pages are accessed, they've already been compiled. (In other words, they're compiled only when they change.) -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Benefits of using taglibs...
ok, I'm not looking to speed up runtime, just compile time. Runtime is fine, compile time is WAY too long. -Original Message- From: Shawn Bayern [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 19, 2003 11:26 AM To: Tag Libraries Users List Subject: RE: Benefits of using taglibs... On Wed, 19 Feb 2003, Ciramella, EJ wrote: Right, so if there are no/very little scriptlet code in the jsps and the tags are already classes, wouldn't this speed thing up at all? No, not at runtime; by the time your pages are accessed, they've already been compiled. (In other words, they're compiled only when they change.) -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Benefits of using taglibs...
-Original Message- From: Shawn Bayern [mailto:[EMAIL PROTECTED]] On Wed, 19 Feb 2003, Ciramella, EJ wrote: My company has ~500 jsps - all of which are scriptlet heavy. I want to propose a change to using taglibs (either custom or directly from the taglib project). What can I site as the benefits? I'm hoping to find a web page or document or something that clearly states some sort of performance increase. Currently, it takes a REALLY long time just to load the login page (which has large scriptlets embedded and it's imports also are 90% scriptlet). I'm guessing that if these things were compiled classes in side a taglib, this would shorten load time and lessen the need to precompile the jsp's. Thanks in advance. The benefits of tag libraries are primarily organizational. You're unlikely to notice a performance improvement when switching from scriptlets to tag libraries; your scriptlet code is being compiled into servlets before it's run. You may notice a speed up relating to page compilation, but Shawn is right when he states that tag libraries don't necessarily mean improved performance. I'd imagine that your performance issues might be a product of a larger architectural issue. If your application consists solely of JSP w/ scriptlets, you might not be taking advantage of pooled JDBC connections, caching, etc.. I'd recommend an evolutionary approach, the first step involves taglibs. 1. JSP w/ Scriptlets *Uck!* 2. JSP w/ Custom Taglibs and JSTL 3. JSP w/ Custom Taglibs and JSTL - accessing a shared persistence layer ( see OJB, Hibernate, etc.. ) 4. JSP w/ Custom Taglibs and JSTL + Struts for MVC - both interfacing with shared persistence layer The benefits of the jump between #1 and #2 are mostly maintainability and reuse. Performance gains will start to manifest themselves when you make the jump between #2 and #3. -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: Benefits of using taglibs...
Thanks a TON - like I initially said, I'm just the release engineer here laden with the task of precompiling this mess. The runtime is quick, the compile time is S-L-O-W. I think it's really do to the amount of scriptlets and scriptlets in file that are included. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, February 19, 2003 11:38 AM To: 'Tag Libraries Users List' Subject: RE: Benefits of using taglibs... -Original Message- From: Shawn Bayern [mailto:[EMAIL PROTECTED]] On Wed, 19 Feb 2003, Ciramella, EJ wrote: My company has ~500 jsps - all of which are scriptlet heavy. I want to propose a change to using taglibs (either custom or directly from the taglib project). What can I site as the benefits? I'm hoping to find a web page or document or something that clearly states some sort of performance increase. Currently, it takes a REALLY long time just to load the login page (which has large scriptlets embedded and it's imports also are 90% scriptlet). I'm guessing that if these things were compiled classes in side a taglib, this would shorten load time and lessen the need to precompile the jsp's. Thanks in advance. The benefits of tag libraries are primarily organizational. You're unlikely to notice a performance improvement when switching from scriptlets to tag libraries; your scriptlet code is being compiled into servlets before it's run. You may notice a speed up relating to page compilation, but Shawn is right when he states that tag libraries don't necessarily mean improved performance. I'd imagine that your performance issues might be a product of a larger architectural issue. If your application consists solely of JSP w/ scriptlets, you might not be taking advantage of pooled JDBC connections, caching, etc.. I'd recommend an evolutionary approach, the first step involves taglibs. 1. JSP w/ Scriptlets *Uck!* 2. JSP w/ Custom Taglibs and JSTL 3. JSP w/ Custom Taglibs and JSTL - accessing a shared persistence layer ( see OJB, Hibernate, etc.. ) 4. JSP w/ Custom Taglibs and JSTL + Struts for MVC - both interfacing with shared persistence layer The benefits of the jump between #1 and #2 are mostly maintainability and reuse. Performance gains will start to manifest themselves when you make the jump between #2 and #3. -- Shawn Bayern JSTL in Action http://www.manning.com/bayern - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
