Re: Hibernate Object and JSF Bean Design
When I use OptimizeIt to check objects inside memory, I find many SQL String inside, I doubt it is related to Hibernate. I suspect the Hibernate object life cycle doesn't end even a request is completed. btw, I am using OpenSessionInView filter. Mario Ivankovits wrote: Hi! Well, I work in an mid size project, approx 3000 java files and 300 jsps. No need for load balancing or failover, which makes things easier ;-) Oh, I forget, we directly use Hibernate Objects in our view too. Ciao, Mario -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf3032608.html#a8683409 Sent from the MyFaces - Users mailing list archive at Nabble.com.
RE: Hibernate Object and JSF Bean Design
Hi, That means action layer can't take advantage of lazy loading feature any more if detach the hibernate object and view object. It's also troublesome to copy value from entity to view object one by one, and it will decrease performance if using reflecting. Will this approach considered as proper way to do it? Regards Bruce Beelen, Marco wrote: Hi, I would agree with your friend. Although rendering pages does become easier when using the hibernate proxy object in your managed-beans directly, it could cause problems with being detached from the HibernateSession after the RestoreView phase. ( Even when using the HibernateSessionInView-filter. ) When we switched to 'proper' view-objects and also were able to increase the performance of the application by retrieve all needed properties of an object at once instead of loading them one-by-one. I would never use hibernate proxies again in my managed-beans. With kind regards, Marco Beelen -Original Message- From: stormspire [mailto:[EMAIL PROTECTED] Sent: donderdag 18 januari 2007 8:22 To: users@myfaces.apache.org Subject: Hibernate Object and JSF Bean Design Now my JSF managed Bean contains some business object which is hiberante object. My friend told me this design is wrong, he says the managed bean should contain only View Object, and contents of view object is translated from business object. Am I really Wrong? As I use lots of lazy loading from hibernate, so I can directly call object lazily loaded for master and detail example. Any comments? -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf3032608.htm l#a8425940 Sent from the MyFaces - Users mailing list archive at Nabble.com. -- Notice: This e-mail message, together with any attachments, contains information of Merck Co., Inc. (One Merck Drive, Whitehouse Station, New Jersey, USA 08889), and/or its affiliates (which may be known outside the United States as Merck Frosst, Merck Sharp Dohme or MSD and in Japan, as Banyu - direct contact information for affiliates is available at http://www.merck.com/contact/contacts.html) that may be confidential, proprietary copyrighted and/or legally privileged. It is intended solely for the use of the individual or entity named on this message. If you are not the intended recipient, and have received this message in error, please notify us immediately by reply e-mail and then delete it from your system. -- -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf3032608.html#a8445639 Sent from the MyFaces - Users mailing list archive at Nabble.com.
RE: Hibernate Object and JSF Bean Design
Hi, Right now we are using HibernateInView filter, normally won't have problem for transactions. However if we got some exception, the session may be lost (haven't gone to the detail, dunno why). If my managed bean consists two actions, one action retrieves object, another action update the object. So if don't use independant view object to store the value, the hibernate entity will still be available during these requests, will it still held database connection for it? If so, I think it is not scalable. How JBoss Seam solve it? Regards Bruce Giampaolo Tomassoni-2 wrote: From: stormspire [mailto:[EMAIL PROTECTED] Now my JSF managed Bean contains some business object which is hiberante object. My friend told me this design is wrong, he says the managed bean should contain only View Object, and contents of view object is translated from business object. Am I really Wrong? As I use lots of lazy loading from hibernate, so I can directly call object lazily loaded for master and detail example. Any comments? JSF beans may need to be persisted into the session object, so you may get problems with transaction boundaries unless you're very careful in handling the (de)serialization process and the Hibernate's session and connection. An out-of-the-shelf approach with similar results but more powerful and reliable for you would probably be JBoss Seam, which basicly allows direct visibility of business entities from JSF, while correctly handling a lot of the hinders which may arise with this. You may find it here: http://labs.jboss.com/portal/jbossseam . They say it's production. I would say it is an advanced beta. Anyway, what is the difference today? Cheers, Giampaolo -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf30326 08.html#a8425940 Sent from the MyFaces - Users mailing list archive at Nabble.com. -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf3032608.html#a8445701 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Hibernate Object and JSF Bean Design
Now my JSF managed Bean contains some business object which is hiberante object. My friend told me this design is wrong, he says the managed bean should contain only View Object, and contents of view object is translated from business object. Am I really Wrong? As I use lots of lazy loading from hibernate, so I can directly call object lazily loaded for master and detail example. Any comments? -- View this message in context: http://www.nabble.com/Hibernate-Object-and-JSF-Bean-Design-tf3032608.html#a8425940 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Re: trace response time and status for action method
it's really a great tool, however I have no idea how to use this tool to collect information like whether the response is successfully executed, that's no FacesException throwed. What I am doing now is run a stressing test, and after some while, collection information like avg execute time, how many percent of request failed. Cagatay Civici wrote: Hi, Facestrace could help for some of your requirements; http://facestrace.sourceforge.net/ Online Demo; http://www.cagataycivici.com/facestrace/ Cheers, Cagatay Coast Guard On 1/12/07, stormspire [EMAIL PROTECTED] wrote: I can gather response time information from servlet filter, but I also want to know whether this method is executed successfully, so need catch exceptions throwed by action. Simon Kitching-3 wrote: stormspire wrote: I want to trace every request submitted, thus for every action, I need how much time it takes to process, whether it throws sys/application exceptions etc. Anywhere I can catch them? Tracing request times could be done using a JSF PhaseListener I guess. However personally I would just write a plain ServletFilter (a servlet concept, not a JSF concept). I suspect that there are already servlet-filter-based performance monitoring tools you can just download. And Tomcat already has basic stats gathering built in to its console webapp. Don't know what you mean by exceptions. Regards, Simon -- View this message in context: http://www.nabble.com/trace-response-time-and-status-for-action-method-tf2963341.html#a8292284 Sent from the MyFaces - Users mailing list archive at Nabble.com. -- View this message in context: http://www.nabble.com/trace-response-time-and-status-for-action-method-tf2963341.html#a8365765 Sent from the MyFaces - Users mailing list archive at Nabble.com.
RE: trace response time and status for action method
sounds good.
How to register this action listener? Will it catch all the requests
including normal form submission?
Madhav Bhargava-2 wrote:
Another way to capture exceptions and calculate time take by action
methods is to create your own action listener class. This class should
extend ActionListenerImpl. Implement processAction method in the new
class that you have created.
Put something like this:
try {
super.processAction(event);
}catch(Exception e) {
//Put stuff here.
}
From: Cagatay Civici [mailto:[EMAIL PROTECTED]
Sent: Friday, January 12, 2007 3:30 PM
To: MyFaces Discussion
Subject: Re: trace response time and status for action method
Hi,
Facestrace could help for some of your requirements;
http://facestrace.sourceforge.net/
Online Demo;
http://www.cagataycivici.com/facestrace/
Cheers,
Cagatay
Coast Guard
On 1/12/07, stormspire [EMAIL PROTECTED]
mailto:[EMAIL PROTECTED] wrote:
I can gather response time information from servlet filter, but I also
want
to know whether this method is executed successfully, so need catch
exceptions throwed by action.
Simon Kitching-3 wrote:
stormspire wrote:
I want to trace every request submitted, thus for every action, I
need
how
much time it takes to process, whether it throws sys/application
exceptions
etc.
Anywhere I can catch them?
Tracing request times could be done using a JSF PhaseListener I guess.
However personally I would just write a plain ServletFilter (a servlet
concept, not a JSF concept). I suspect that there are already
servlet-filter-based performance monitoring tools you can just
download.
And Tomcat already has basic stats gathering built in to its console
webapp.
Don't know what you mean by exceptions.
Regards,
Simon
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RE: trace response time and status for action method
en, that's great!
but seems the action listener can only trace POST method, through UICommand
component.
if I want to trace Get method, can only go through Phase Listener?
Madhav Bhargava-2 wrote:
You can register your own action listener by just declaring the
following in faces-config.xml
application
action-listener
com.yourpackage.YourActionListener
/action-listener
/application
~madhav
stormspire wrote:
sounds good.
How to register this action listener? Will it catch all the requests
including normal form submission?
Madhav Bhargava-2 wrote:
Another way to capture exceptions and calculate time take by action
methods is to create your own action listener class. This class
should
extend ActionListenerImpl. Implement processAction method in the new
class that you have created.
Put something like this:
try {
super.processAction(event);
}catch(Exception e) {
//Put stuff here.
}
CAUTION - Disclaimer *
This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended
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message. Further, you are not to copy, disclose, or distribute this e-mail
or its contents to any other person and any such actions are unlawful.
This e-mail may contain viruses. Infosys has taken every reasonable
precaution to minimize this risk, but is not liable for any damage you may
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return null vs navigation rule from action method
I am using saveState with myfaces. Now I faces a problem, I have a page, after submit it to an action method, I have done some business process, then change values that will be presented in the page. If I use return null at the end of action method, the page won't refresh with latest value. I have to declare a navigation rule inside faces-config.xml and using 'return someRule' to refresh the values. I am wondering what's the correct way to do it, doubt the second way will have unnecessary process. -- View this message in context: http://www.nabble.com/return-null-vs-navigation-rule-from-action-method-tf2963340.html#a8291127 Sent from the MyFaces - Users mailing list archive at Nabble.com.
trace response time and status for action method
I want to trace every request submitted, thus for every action, I need how much time it takes to process, whether it throws sys/application exceptions etc. Anywhere I can catch them? -- View this message in context: http://www.nabble.com/trace-response-time-and-status-for-action-method-tf2963341.html#a8291128 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Re: trace response time and status for action method
I can gather response time information from servlet filter, but I also want to know whether this method is executed successfully, so need catch exceptions throwed by action. Simon Kitching-3 wrote: stormspire wrote: I want to trace every request submitted, thus for every action, I need how much time it takes to process, whether it throws sys/application exceptions etc. Anywhere I can catch them? Tracing request times could be done using a JSF PhaseListener I guess. However personally I would just write a plain ServletFilter (a servlet concept, not a JSF concept). I suspect that there are already servlet-filter-based performance monitoring tools you can just download. And Tomcat already has basic stats gathering built in to its console webapp. Don't know what you mean by exceptions. Regards, Simon -- View this message in context: http://www.nabble.com/trace-response-time-and-status-for-action-method-tf2963341.html#a8292284 Sent from the MyFaces - Users mailing list archive at Nabble.com.
timeout for SaveState on server side
if I use savestate to store a bean on server side, when will it be destroyed? What I expect is if I navigate from one page to another page, the state in first page won't be in server if I don't require it on second page. -- View this message in context: http://www.nabble.com/timeout-for-SaveState-on-server-side-tf2897980.html#a8096615 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Re: Performance Issue
We have a memory constraint here, is there any one has done application successfully with large pool of concurrent users? We use statestate extensively, and we save the whole bean usually, i doubt this is the problem for us. It doesn't scale very well. Dennis Byrne wrote: one question: when the beans declared in faces-config are created? upon request? When will the app server destroy beans inside server, only after session expired according to application config? The beans declared in faces-config are created and destroyed according to scope (none, request, session and application ) and access. For example, a request scope bean is created upon first access and marked for garbage completion (provided no other references to it) at the end of the request. Scope is configured in you faces-config file. any other way to improve it? I am considering switching to client state, and add a compression on the state. Anyone has already done it? Server side state saving is almost always faster than client side state saving, although it uses more memory. Dennis Byrne -- View this message in context: http://www.nabble.com/Performance-Issue-tf2884773.html#a8070705 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Performance Issue
We are using Myfaces 1.1.5 SNAPSHOT + tomahawk-1.1.5-SNAPSHOT + tomahawk-sandbox-1.1.5-SNAPSHOT + facelets in websphere environment. We have big performance issue, not only the response is slow, avg 6 seconds, but also our application consumes lots of memory. The max heap size for us is 512M, although it is slow, another application with more users resided in the same app server doesn't have performance issue, it's also using 512M max heap size. That application is using struts. Right now we usually save state the whole bean, and using server side. I follow http://wiki.apache.org/myfaces/Performance quite closely. Is there any other way to improve it? I am considering switching to client state, and add a compression on the state. Anyone has already done it? -- View this message in context: http://www.nabble.com/Performance-Issue-tf2884773.html#a8059829 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Re: Performance Issue
one question: when the beans declared in faces-config are created? upon request? When will the app server destroy beans inside server, only after session expired according to application config? stormspire wrote: We are using Myfaces 1.1.5 SNAPSHOT + tomahawk-1.1.5-SNAPSHOT + tomahawk-sandbox-1.1.5-SNAPSHOT + facelets in websphere environment. We have big performance issue, not only the response is slow, avg 6 seconds, but also our application consumes lots of memory. The max heap size for us is 512M, although it is slow, another application with more users resided in the same app server doesn't have performance issue, it's also using 512M max heap size. That application is using struts. Right now we usually save state the whole bean, and using server side. I follow http://wiki.apache.org/myfaces/Performance quite closely. Is there any other way to improve it? I am considering switching to client state, and add a compression on the state. Anyone has already done it? -- View this message in context: http://www.nabble.com/Performance-Issue-tf2884773.html#a8059842 Sent from the MyFaces - Users mailing list archive at Nabble.com.
Re: Questions about tree2 and Facelet
I have faced the similar problem using tree2 facelets.
the version I used is 1.1.5, I think the solution post in
http://wiki.apache.org/myfaces/Use_Facelets_with_Tomahawk is for 1.1.3 and
prior verion.
i have your method below, however it doesn't work for me still, I can only
see the root level, and can't expand the + sign.
Could you post your simple workable version with facelets? reall
appreciated your help!
Andrew Robinson-5 wrote:
There is no such thing as a nested facet in JSF at all. A facet is a
map of string-UIComponent in a component. Therefore, it is only 1
level deep. When you put a panelGroup in a facet and put facets in
that panelGroup you are simply creating this structure:
Tree2 - [Facet] - PanelGroup - [Facet] - SomeComponent
The second facet is a facet of the panel group and is totally
unrelated to the tree2 component. PanelGroups never render their
facets with the default renderer, so the SomeComponent will never be
rendered.
If you want to have different behavior for expanded or collapsed
nodes, you will have to (1) use EL in your node facet or (2) create
separate nodes for expanded/collapsed.
From your example, I recommend (1)
t:tree2 id=clientTree value=#{csc_CSCTreeBean.treeData}
var=node varNodeToggler=t
f:facet name=person
h:panelGroup
t:graphicImage value=#{t.nodeExpanded ?
'images/yellow-folder-open.png' :
'images/yellow-folder-closed.png'}
border=0/
h:outputText value=#{node.description} styleClass=nodeFolder/
/h:panelGroup
/f:facet
...
On 9/19/06, davy.mailing [EMAIL PROTECTED] wrote:
Thank you very much
I am still a little puzzled
The code that i copied is from tomahawk sample code. And it really works
.
Maybe you mean we can't use nested facets in facelet?
Thanks again for your help
davy.mailing
2006-09-20
发件人： Andrew Robinson
发送时间： 2006-09-19 23:51:45
收件人： MyFaces Discussion
抄送：
主题： Re: Questions about tree2 and Facelet
Why do you have nested facets? There should only be
one facet per
node type. Nested is not supported. Have a look at
the example apps
to see how to create the facets. The use of
expand and collapse
facets is not supported, especially when you
have added these facets
to a panel group. The panel group component does
not render facets
On 9/19/06, davy.mailing [EMAIL PROTECTED] wrote:
Thanks for Andrew Robinson
I wrote tree2.xhtml like this
html xmlns=http://www.w3.org/1999/xhtml;
xmlns:ui=http://java.sun.com/jsf/facelets;
xmlns:h=http://java.sun.com/jsf/html;
xmlns:f=http://java.sun.com/jsf/core;
xmlns:t=http://myfaces.apache.org/tomahawk;
h:inputText value=test jsf/
f:view
h:form id=tree
t:tree2 id=clientTree
value=#{csc_CSCTreeBean.treeData} var=node
varNodeToggler=t
f:facet name=person
h:panelGroup
f:facet name=expand
t:graphicImage
value=images/yellow-folder-open.png
rendered=#{t.nodeExpanded} border=0/
/f:facet
f:facet name=collapse
t:graphicImage
value=images/yellow-folder-closed.png
rendered=#{!t.nodeExpanded} border=0/
/f:facet
h:outputText value=#{node.description}
styleClass=nodeFolder/
/h:panelGroup
/f:facet
f:facet name=foo-folder
h:panelGroup
f:facet name=expand
t:graphicImage
value=images/yellow-folder-open.png
rendered=#{t.nodeExpanded} border=0/
/f:facet
f:facet name=collapse
t:graphicImage
value=images/yellow-folder-closed.png
rendered=#{!t.nodeExpanded} border=0/
/f:facet
h:outputText value=#{node.description}
styleClass=nodeFolder/
h:outputText value= (#{node.childCount})
styleClass=childCount rendered=#{!empty
node.children}/
/h:panelGroup
/f:facet
f:facet name=bar-folder
h:panelGroup
f:facet name=expand
t:graphicImage
value=images/blue-folder-open.gif
rendered=#{t.nodeExpanded} border=0/
/f:facet
f:facet name=collapse
t:graphicImage
value=images/blue-folder-closed.png
rendered=#{!t.nodeExpanded} border=0/
/f:facet
h:outputText value=#{node.description}
styleClass=nodeFolder/
h:outputText value= (#{node.childCount})
styleClass=childCount rendered=#{!empty
node.children}/
/h:panelGroup
/f:facet
f:facet name=document
h:panelGroup
h:commandLink immediate=true
