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List: soap-user
Subject: Re: tomcat connection pooling
From: Jonathan Roberts <j_droberts () yahoo ! co ! uk>
Date: 2004-12-14 15:37:28
Message-ID: 20041214153728.55167.qmail () web26306 ! mail ! ukl ! yahoo ! com
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Thanks Martin,
I thought you were talking about pure tomcat jakarta, personally I'd run \
websphere/weblogic or jboss if there was a requirement for ejbs.
Thanks for the link however, good reading.
Re : Session and entity beans, this wholy depends on usage.
However I was merely answin your question on "levearge connection pooling to axis web \
services", in other words. i..e that connection pooling has nothign to do with soap \
and can be implenmented in the back end code in which ever way you aspire to, either \
low level complexity ( java beans) or higher level complexity ( EJBS ).
Regards
Jonathan
Martin Gainty <mgainty@hotmail.com> wrote:
There are so many EJB servers that run under Tomcat where to start?
take a look at
http://www.openejb.org/tomcat-adapter.html
which installs an embedded EJB Server inside Tomcat
Granted
Session bean will help you out for shortlived connections
otherwise think about expanding your horizons to implementing EJBs
Give a shout if you need any help,
Martin-
----- Original Message -----
From: Jonathan Roberts
To: soap-user@ws.apache.org
Sent: Monday, December 13, 2004 10:37 PM
Subject: RE: tomcat connection pooling
Equally, unless I'm behind on the apache/tomcat specs, EJBs cannot be implemented \
on apache/tomcat.
The only beans you can run on apache are normal java beans and not ejbs.
Jonathan
"THOMAS, JAI [AG-Contractor/1000]" <jai.thomas@monsanto.com> wrote:
Martin,
That is a true comparison of session vs entity, but I thought your question
was how to levearge connection pooling to axis web services.
Jai
-----Original Message-----
From: Martin Gainty [mailto:mgainty@hotmail.com]
Sent: Monday, December 13, 2004 2:51 PM
To: soap-user@ws.apache.org
Subject: RE: tomcat connection pooling
The short answer is yes it does matter if you use Entity or Session Beans
Here is a reprised version of a conversation from Scot Bellamy response to
Patrick Lighbody on this topic
As for the last question, should entity beans be used, it depends on what
the bean is needed to do. One valuable use of entity beans is for objects
that will be cached and used by multiple sessions (users) simultaneously.
This allows you to adopt a caching algorithm (supported by your container)
without having to write the caching mechanism yourself. This can greatly
enhance performance. For short-lived objects that will not benefit from a
cache, session beans might be a better fit. This shouldn't be viewed as a
hard rule but might be a good place to start when deciding between entity
beans and session beans. Certainly session beans are generally faster and
have less overhead.
Conclusion for DB Connections:
Short lived: Session beans
Long lived: Entity beans
My apologies for the WAY off topic divergence.. (Scott and everyone else on
this list)
Martin Gainty
(cell) 617-852-7822
> From: "THOMAS, JAI [AG-Contractor/1000]"
> Reply-To: soap-user@ws.apache.org
> To: "'soap-user@ws.apache.org'"
> Subject: RE: tomcat connection pooling
> Date: Mon, 13 Dec 2004 14:13:47 -0600
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>
> It doesn't matter what type of ejb it is. Your web service is only an
> access point to
> a set of business functionalities. If your service invokes a session bean,
> whatever connection pooling mechanism you have in place would work in the
> same way it is acessed via a web interface (or anything else for that
> matter).
>
> Jai
>
> -----Original Message-----
> From: Martin Gainty [mailto:mgainty@hotmail.com]
> Sent: Monday, December 13, 2004 1:03 PM
> To: soap-user@ws.apache.org
> Subject: RE: tomcat connection pooling
>
>
> Thomas
>
> Let me rephrase the question to make myself clearer
>
> What Im looking for is Is the Database Connection Pool you are speaking of
> a Session Bean?
> a CMP Bean
> a Entity Bean?
>
> I think this may be OffTopic from SOAP so feel free to respond to my
> inquiry
> offline.
>
> Thank You,
>
> Martin Gainty
>
> (cell) 617-852-7822
> (e) webmaster@laconiadatasystems.com
> (http)www.laconiadatasystems.com
>
>
>
>
> > From: "THOMAS, JAI [AG-Contractor/1000]"
> > Reply-To: soap-user@ws.apache.org
> > To: "'soap-user@ws.apache.org'"
> > Subject: RE: tomcat connection pooling
> > Date: Mon, 13 Dec 2004 10:24:09 -0600
> > MIME-Version: 1.0
> > Received: from mail.apache.org ([209.237.227.199]) by mc6-f22.hotmail.com
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> 2004
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> > FILETIME=[13419A10:01C4E131]
> >
> > Martin,
> > Connection pool is an enterprise app resource. As long as the service is
> > part of the app, it should be able to make use of that.
> > Jai
> >
> > -----Original Message-----
> > From: Martin Vossler [mailto:mvossler@adelphia.net]
> > Sent: Monday, December 13, 2004 9:01 AM
> > To: soap-user@ws.apache.org
> > Subject: tomcat connection pooling
> >
> >
> > Does anyone know if its possible for an Apache Soap service to leverage
> > Tomcats database connection pooling features? Any point in the right
> > direction for where to find such information is greatly appreciated.
>
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[Attachment #3 (text/html)]
<DIV>Thanks Martin,</DIV>
<DIV> </DIV>
<DIV>I thought you were talking about pure tomcat jakarta, personally I'd run \
websphere/weblogic or jboss if there was a requirement for ejbs.</DIV> \
<DIV> </DIV> <DIV>Thanks for the link however, good reading.</DIV>
<DIV> </DIV>
<DIV>Re : Session and entity beans, this wholy depends on usage.</DIV>
<DIV> </DIV>
<DIV>However I was merely answin your question on "levearge connection pooling to \
axis web services", in other words.</DIV> <DIV>i..e that connection pooling has \
nothign to do with soap and can be implenmented in the back end code in which ever \
way you aspire to, either low level complexity ( java beans) or higher level \
complexity ( EJBS ).</DIV> <DIV> </DIV>
<DIV>Regards</DIV>
<DIV> </DIV>
<DIV>Jonathan</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV><BR><B><I>Martin Gainty <mgainty@hotmail.com></I></B> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: \
#1010ff 2px solid"> <META content="MSHTML 6.00.2800.1106" name=GENERATOR>
<STYLE></STYLE>
<DIV><FONT face=Arial size=2>There are so many EJB servers that run under Tomcat \
where to start?<BR>take a look at<BR><A \
href="http://www.openejb.org/tomcat-adapter.html">http://www.openejb.org/tomcat-adapter.html</A><BR>which \
installs an embedded EJB Server inside Tomcat<BR>Granted <BR>Session bean will help \
you out for shortlived connections<BR>otherwise think about expanding your horizons \
to implementing EJBs<BR>Give a shout if you need any \
help,<BR>Martin-<BR></FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; \
PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: \
0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B> <A \
title=j_droberts@yahoo.co.uk href="mailto:j_droberts@yahoo.co.uk">Jonathan \
Roberts</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A \
title=soap-user@ws.apache.org \
href="mailto:soap-user@ws.apache.org">soap-user@ws.apache.org</A> </DIV> <DIV \
style="FONT: 10pt arial"><B>Sent:</B> Monday, December 13, 2004 10:37 PM</DIV> <DIV \
style="FONT: 10pt arial"><B>Subject:</B> RE: tomcat connection pooling</DIV> \
<DIV><BR></DIV> <DIV>Equally, unless I'm behind on the apache/tomcat \
specs, EJBs cannot be implemented on apache/tomcat.</DIV> <DIV> </DIV>
<DIV>The only beans you can run on apache are normal java beans and not ejbs.</DIV>
<DIV> </DIV>
<DIV>Jonathan<BR><BR><B><I>"THOMAS, JAI [AG-Contractor/1000]" <<A \
href="mailto:jai.thomas@monsanto.com">jai.thomas@monsanto.com</A>></I></B> \
wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; \
BORDER-LEFT: #1010ff 2px solid">Martin,<BR>That is a true comparison of session vs \
entity, but I thought your question<BR>was how to levearge connection pooling to axis \
web services.<BR><BR>Jai<BR><BR><BR>-----Original Message-----<BR>From: Martin Gainty \
[mailto:mgainty@hotmail.com]<BR>Sent: Monday, December 13, 2004 2:51 PM<BR>To: \
soap-user@ws.apache.org<BR>Subject: RE: tomcat connection pooling<BR><BR><BR>The \
short answer is yes it does matter if you use Entity or Session Beans<BR>Here is a \
reprised version of a conversation from Scot Bellamy response to <BR>Patrick Lighbody \
on this topic<BR><BR>As for the last question, should entity beans be used, it \
depends on what <BR>the bean is needed to do. One valuable use of entity beans is for \
objects <BR>that will be cached and used by multiple sessions (users) simultaneously. \
<BR>This allows you to adopt a caching algorithm (supported by your container) \
<BR>without having to write the caching mechanism yourself. This can greatly \
<BR>enhance performance. For short-lived objects that will not benefit from a \
<BR>cache, session beans might be a better fit. This shouldn't be viewed as a \
<BR>hard rule but might be a good place to start when deciding between entity \
<BR>beans and session beans. Certainly session beans are generally faster and \
<BR>have less overhead.<BR><BR>Conclusion for DB Connections:<BR>Short lived: Session \
beans<BR>Long lived: Entity beans<BR><BR>My apologies for the WAY off topic \
divergence.. (Scott and everyone else on <BR>this list)<BR><BR>Martin \
Gainty<BR><BR>(cell) 617-852-7822<BR><BR><BR><BR><BR>>From: "THOMAS, JAI \
[AG-Contractor/1000]" <JAI.THOMAS@MONSANTO.COM><BR>>Reply-To: \
soap-user@ws.apache.org<BR>>To: "'soap-user@ws.apache.org'" \
<SOAP-USER@WS.APACHE.ORG><BR>>Subject: RE: tomcat connection pooling<BR>>Date: \
Mon, 13 Dec 2004 14:13:47 -0600<BR>>MIME-Version: 1.0<BR>>Received: from \
mail.apache.org ([209.237.227.199]) by mc4-f40.hotmail.com <BR>>with Microsoft \
SMTPSVC(5.0.2195.6824); Mon, 13 Dec 2004 12:14:35 -0800<BR>>Received: (qmail 59518 \
invoked by uid 500); 13 Dec 2004 20:13:59 -0000<BR>>Received: (qmail 59469 invoked \
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13 Dec 2004 20:14:35.0515 (UTC) \
<BR>>FILETIME=[5D7A5CB0:01C4E150]<BR>><BR>>It doesn't matter what type of \
ejb it is. Your web service is only an <BR>>access point to<BR>>a set of \
business functionalities. If your service invokes a session bean, <BR>>whatever \
connection pooling mechanism you have in place would work in the <BR>>same way it \
is acessed via a web interface (or anything else for that \
<BR>>matter).<BR>><BR>>Jai<BR>><BR>>-----Original \
Message-----<BR>>From: Martin Gainty [mailto:mgainty@hotmail.com]<BR>>Sent: \
Monday, December 13, 2004 1:03 PM<BR>>To: soap-user@ws.apache.org<BR>>Subject: \
RE: tomcat connection pooling<BR>><BR>><BR>>Thomas<BR>><BR>>Let me \
rephrase the question to make myself clearer<BR>><BR>>What Im looking for is Is \
the Database Connection Pool you are speaking of<BR>>a Session Bean?<BR>>a CMP \
Bean<BR>>a Entity Bean?<BR>><BR>>I think this may be OffTopic from SOAP so \
feel free to respond to my <BR>>inquiry<BR>>offline.<BR>><BR>>Thank \
You,<BR>><BR>>Martin Gainty<BR>><BR>>(cell) 617-852-7822<BR>>(e) \
webmaster@laconiadatasystems.com<BR>>(http)www.laconiadatasystems.com<BR>><BR>><BR>><BR>><BR>> \
>From: "THOMAS, JAI [AG-Contractor/1000]" <JAI.THOMAS@MONSANTO.COM><BR>> \
>Reply-To: soap-user@ws.apache.org<BR>> >To: "'soap-user@ws.apache.org'" \
<SOAP-USER@WS.APACHE.ORG><BR>> >Subject: RE: tomcat connection pooling<BR>> \
>Date: Mon, 13 Dec 2004 10:24:09 -0600<BR>> >MIME-Version: 1.0<BR>> \
>Received: from mail.apache.org ([209.237.227.199]) by mc6-f22.hotmail.com<BR>> \
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>FILETIME=[13419A10:01C4E131]<BR>> ><BR>> >Martin,<BR>> \
>Connection pool is an enterprise app resource. As long as the service is<BR>> \
>part of the app, it should be able to make use of that.<BR>> >Jai<BR>> \
><BR>> >-----Original Message-----<BR>> >From: Martin Vossler \
[mailto:mvossler@adelphia.net]<BR>> >Sent: Monday, December 13, 2004 9:01 \
AM<BR>> >To: soap-user@ws.apache.org<BR>> >Subject: tomcat connection \
pooling<BR>> ><BR>> ><BR>> >Does anyone know if its possible for an \
Apache Soap service to leverage<BR>> >Tomcats database connection pooling \
features? Any point in the right<BR>> >direction for where to find such \
information is greatly \
appreciated.<BR>><BR><BR></BLOCKQUOTE></MAILTO:SOAP-USER@XML.APACHE.ORG></MAILTO:SO \
AP-USER-UNSUBSCRIBE@WS.APACHE.ORG></MAILTO:SOAP-USER@XML.APACHE.ORG></MAILTO:SOAP-USER-UNSUBSCRIBE@WS.APACHE.ORG></MAILTO:SOAP-USER-HELP@WS.APACHE.ORG>
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