Generic Data Source
GenericDataSource Question I need to set the driver of a generic datasource the only method to configure the driver is setDriverClass(String driverCLass) I want a method like setDriver(java.sql.Driver driver) The only way to handle this is to extend the GenericDataSource class and add this method ... but now I need to redefine the GenericDataSource instantiation in order to instantiate my Implementation, have an idea ? (I imagine that this is done into the ActionServlet) ... -- Kevin Viet [EMAIL PROTECTED] ActiVia Networks -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
DAO or ... ?
My question is a web app design question.
What pattern you guys follow when you want to save a domain object in
the database ?:
- use the DAO pattern of java blueprint (persistence layer is called
into classes)
- call to persistence statements into action code :
// store example
try {
PeristenceLayer pl = getPerstitenceLayer();
pl.save(domainObject);
}
catch (Exception
--
Kevin Viet [EMAIL PROTECTED]
ActiVia Networks
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Re: DAO or ... ?
Le lun 14/10/2002 à 16:55, V. Cekvenich a écrit :
Avoid persistence in Action code as much as you can.
Yes.
And a way to do that is to say in action something like:
formBean.save()
where the formBean has something like this in save() {getDAO().update()}
and the DAo does the save for the bean.
But I'v read that the domain objects needn't know that are persitent,
if you implement a save method that means that ur object know it can be
persisted
.V
Lacerda, Wellington (AFIS) wrote:
Hi Kevin
Avoid persistence in Action code as much as you can.
This is the general recommendation.
Wellington Silva
Author of JSP and Tag Libraries for Web Development
FAO of the UN - Consultant
-Original Message-
From: Kevin Viet [mailto:[EMAIL PROTECTED]]
Sent: Monday, October 14, 2002 4:45 PM
To: struts-user
Subject: DAO or ... ?
My question is a web app design question.
What pattern you guys follow when you want to save a domain object in
the database ?:
- use the DAO pattern of java blueprint (persistence layer is called
into classes)
- call to persistence statements into action code :
// store example
try {
PeristenceLayer pl = getPerstitenceLayer();
pl.save(domainObject);
}
catch (Exception
--
To unsubscribe, e-mail: mailto:[EMAIL PROTECTED]
For additional commands, e-mail: mailto:[EMAIL PROTECTED]
--
Kevin Viet [EMAIL PROTECTED]
ActiVia Networks
--
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RE: DAO or ... ?
Le lun 14/10/2002 à 17:10, Wendy Smoak a écrit : PeristenceLayer pl = getPerstitenceLayer(); pl.save(domainObject); But I'v read that the domain objects needn't know that are persitent, if you implement a save method that means that ur object know it can be persisted In that example, the domainObject still doesn't have to know if/how it's being persisted. I've implemented the whole DAO pattern, excepting the last bit that makes it easy to switch databases since it's highly unlikely that will happen here. In 'EditContactAction' I have: DAOFactory udFactory = DAOFactory.getDAOFactory(); ContactDAO contactDAO = udFactory.getContactDAO(); Contact contact = contactDAO.createContact(); Later, in 'ProcessContactAction' there's: contactDAO.updateContact( contact ); So while the Actions know that persistence is happening, they have no idea how it occurs. so domainObject doesn't know about the DAO existence, and DAO's represent ur persistence layer that is called into the struts action. so if I can implement a generic DAO (that workd for all domain objects) i will have GenericDAO gd = // obtain a reference Contact contact = session.getAttribute(contact); gd.update(contact); -- Wendy Smoak http://sourceforge.net/projects/unidbtags -- Kevin Viet [EMAIL PROTECTED] ActiVia Networks -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Anybody knows or uses IntelliJIDEA?
I have tried it, it's really a great IDE, with a lot of functionnalities, pretty cool to use , and I think it's the sexiest IDE Le jeu 22/08/2002 à 12:53, Sutiwan Kariya a écrit : Hi, Anybody knows or uses IntelliJ to develop Java family? How is it ? Any comment about it? I've tried to browse www.intellij.com but the website seems have the problem, I could not go to that web site! Sutiwan W. This E-mail and any files transmitted with it are confidential and intended for the sole use of the individual or entity to whom they are addressed. If you have received this E-mail in error please notify the system manager. This E-mail message has been swept for the presence of computer viruses. -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
O/R mapping tool
Hello all, just a question : I want to know if some of you have some information about O/R mapping tools (like OJB, castor, ...), products comparison would be of great value -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: O/R mapping tool
yes I want a copy of your excel file, It would be of great help, can you send it to [EMAIL PROTECTED], thanx in advance !!! Le mar 13/08/2002 à 18:10, Dan Cancro a écrit : I have a set of notes from the mailing lists on O/R tools, frameworks, etc. in an Excel file. Let me know if you'd like a copy. The Cayenne developers made a nice comparison too (http://c2.com/cgi-bin/wiki?CayenneVsOther). Dan -Original Message- From: Kevin Viet [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 13, 2002 5:12 AM To: Struts Users Mailing List Subject: O/R mapping tool Hello all, just a question : I want to know if some of you have some information about O/R mapping tools (like OJB, castor, ...), products comparison would be of great value -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: Tiles
Le mar 23/07/2002 à 08:32, Adarsh a écrit : Hi all, Can any body guide me on what tiles is all about...where can it be used?and how can it be used with struts Adarsh Gupta Software Engineer Patni Computer Systems Limited SDF-7, 4th Floor, Unit 17, SEEPZ Tel : (022)-8290479/8291454 Extn : 5741 Mobile : 9820224341 www.patni.com World-Wide Partnerships.World-Class Solutions. Sorry I am not responding to your question but I just use your thread to ask an another question that could help you too: What is the difference between struts-template and tiles ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
