Re: Feedback: Creating JavaServer Faces CRUD Application from a Database

[Imen Jbebli]

Hi,

I'm a software engineer, and in our enterprise we opt for using this architecture in order to develop an important application.
It’s the first time I work with netbeans.

I have done the tutorial posted in "http://www.netbeans.org/kb/docs/web/jsf-jpa-crud-wizard.html"
and I have sent a message to the person how published the tutorial (you can see her response above) and she adived me to sent the problem to you.

I hope you can help me, I'll be thankfull.

I'm an expert with eclipse. I have done with it many web projects (using the frameworks STRUTS, HIBERNATE, SPRING and APACHE as web container).

Now we choose Netbeans, because as shown in this sample, NETBEANS generates all in some clicks and in a short time.

So, I applied this tutorial with a database containing a lot of data (in some tables 2 millions of registrations), and the response time is too long and in the end a have a message (java heap space).

In fact, I encountered this problem with a project done with eclipse (web application with frameworks STRUTS, HIBERNATE and STRUTS) and I resolved it by adding “lazy="true"” for each tag “set” in the *.hbm.xml files, also I added the DLL “tcnative-1.dll” in order to perform APACHE TOMCAT, and so I no longer have the problems.

So, in this case, I tried to do the same think. So, I have deleted under the package “jpa.entities”, all the annotation “// @OneToMany(mappedBy = "idAbonnement")” and of corse the related attribute and the methods getter and setter, then I generated the JSF Pagesfiles from Entities Classes, but I always have the same problem ???????????????

I focused in your FAQ, I found you speaking about modifying /
*** netbeans_default_options="-J-Xms512m -J-Xmx512m -J-XX:PermSize=32m -J-XX:MaxPermSize=128m -J-Xverify:none
*** <java-config suffix="...">
<jvm-options>-Xmx512m</jvm-options>
<jvm-options>-XX:NewRatio=2</jvm-options>
<jvm-options>-XX:MaxPermSize=128m</jvm-options>
...
</java-config>
But no result.

My database is created under the SGBD PostgreSQL.
RAM: 1G
Procesess: 3.20 GHZ and P IV
Space in disque / 25 GO

I hope that you can help and advise me.

Thanks in advance

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----- Mail Original -----
De: "Kenneth Ganfield" <address-removed>
À: "i jbebli" <address-removed>
Cc: "nbdocs feedback" <address-removed>
Envoyé: Mardi 5 Mai 2009 13h51:34 GMT +01:00 Amsterdam / Berlin / Berne / Rome / Stockholm / Vienne
Objet: Re: Feedback: Creating JavaServer Faces CRUD Application from a Database

Hi,
I think that for your question regarding configuration and optimization
it would be better to repost your question to the j2ee list.

address-removed

I would definitely recommend submitting your question there. There are
people on that mailing list who would be better qualified to answer your
question, and probably have even encountered and resolved it.


ken

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address-removed wrote: