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Posted to user@struts.apache.org by Gabriel Sidler <si...@teamup.ch> on 2002/03/09 21:52:08 UTC
EBJ Alternatives?
A couple weeks ago there has been an intense discussion on
this list about the use of EJB. Many people were quite
critical or at least cautious about EJB. I'd appreciate if
some of you could share what alternative component
architectures/frameworks you are using.
I'm now starting on a new web project where distribution and
transactions, two of EJB's main feature, are no requirements.
The application is a web-based collaborative system with a
rather complex application logic but little database involvement.
There will be clients using HTML/HTTP and other using a SOAP-
like protocol. I am planning on using Struts for the Web-tier
and am looking for a component framework to implement the business
logic/data tier. If feel that EJBs wouldn't be the right technology
for this but am wondering what alternatives are. The things I
would like to see in such a component framework are:
- component life cycle support
- support for component relationships
- component naming and lookup
- authorization mechanism
- web request dispatching
- subscription/notification service
- logging
- configuration
- persistence
- some modularization concept
- some error handling concept
How are you implementing this? Any framework you can recommend?
Thanks for sharing!
Gabe
--
Gabriel Sidler
Software Engineer, Eivycom GmbH, Zurich, Switzerland
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RE: Problem handling arrays in an ActionForm
Posted by Javier Campoamor <jc...@lapize.com>.
I'm sorry. Again there has been a human failure.
This time the problem was that the form scope was linked to the request
instead of the session.
What confused to me is that the normal fields, (non array fields) were
populated and for that reason I've lost a few hours looking for the problem.
Best regards
Javier
> -----Mensaje original-----
> De: Javier Campoamor [mailto:jcampoamor@lapize.com]
> Enviado el: martes 12 de marzo de 2002 19:35
> Para: Struts Users Mailing List
> Asunto: Problem handling arrays in an ActionForm
>
>
> Hi,
>
> I'm having a problem handling arrays in an ActionForm. In the form I have
> the next getter & setter for an array:
> public Object[] getComponentsArray()
> {
> return _ComponentsList.toArray();
> }
> public void setComponentsArray(Object[] _componentsArray)
> {
> _ComponentsList = new ArrayList();
> for (int i = 0; i < _componentsArray.length; i++)
> {
> _ComponentsList.add(_componentsArray[i]);
> }
> }
>
> The information that I put here in the first action is handle without
> problems for the nested taglib. When I make the submit to the form, I find
> that before any instruction in the reset, the ArrayList size is null.
>
> Thisis the reset method:
> public void reset(ActionMapping _mapping, HttpServletRequest _request)
> {
> System.out.println("Reset del AuCompAdminForm: "
> + AuDescription + " : " + _ComponentsList.size());
> }
>
>
> When in the PropertyUtils, the getIndexedProperty invoke the read method
> Object value = readMethod.invoke(bean, new Object[0]);
>
> the value is an empty array. Any idea about what is happenig?
>
> Thanks in advance
>
> Javier
>
>
>
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> To unsubscribe, e-mail:
> <ma...@jakarta.apache.org>
> For additional commands, e-mail:
> <ma...@jakarta.apache.org>
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Problem handling arrays in an ActionForm
Posted by Javier Campoamor <jc...@lapize.com>.
Hi,
I'm having a problem handling arrays in an ActionForm. In the form I have
the next getter & setter for an array:
public Object[] getComponentsArray()
{
return _ComponentsList.toArray();
}
public void setComponentsArray(Object[] _componentsArray)
{
_ComponentsList = new ArrayList();
for (int i = 0; i < _componentsArray.length; i++)
{
_ComponentsList.add(_componentsArray[i]);
}
}
The information that I put here in the first action is handle without
problems for the nested taglib. When I make the submit to the form, I find
that before any instruction in the reset, the ArrayList size is null.
Thisis the reset method:
public void reset(ActionMapping _mapping, HttpServletRequest _request)
{
System.out.println("Reset del AuCompAdminForm: "
+ AuDescription + " : " + _ComponentsList.size());
}
When in the PropertyUtils, the getIndexedProperty invoke the read method
Object value = readMethod.invoke(bean, new Object[0]);
the value is an empty array. Any idea about what is happenig?
Thanks in advance
Javier
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RE: EBJ Alternatives?
Posted by Robert <rm...@bull-enterprises.com>.
Have you looked at the Apache Avalon project? It provides almost
everything you mentioned. It is a component/service management
framework, in a nutshell. It has nice configuration support, component
lifecycles (you can pick what life cycle interfaces you want to use),
lookups, etc. From the framework, they have some implementations, such
as Phoenix which is a micro-kernel server.
Check it out: http://jakarta.apache.org/avalon
- Robert
-----Original Message-----
From: Gabriel Sidler [mailto:sidler@teamup.ch]
Sent: Saturday, March 09, 2002 2:52 PM
To: struts-user@jakarta.apache.org
Subject: EBJ Alternatives?
A couple weeks ago there has been an intense discussion on
this list about the use of EJB. Many people were quite
critical or at least cautious about EJB. I'd appreciate if
some of you could share what alternative component
architectures/frameworks you are using.
I'm now starting on a new web project where distribution and
transactions, two of EJB's main feature, are no requirements.
The application is a web-based collaborative system with a
rather complex application logic but little database involvement.
There will be clients using HTML/HTTP and other using a SOAP-
like protocol. I am planning on using Struts for the Web-tier
and am looking for a component framework to implement the business
logic/data tier. If feel that EJBs wouldn't be the right technology
for this but am wondering what alternatives are. The things I
would like to see in such a component framework are:
- component life cycle support
- support for component relationships
- component naming and lookup
- authorization mechanism
- web request dispatching
- subscription/notification service
- logging
- configuration
- persistence
- some modularization concept
- some error handling concept
How are you implementing this? Any framework you can recommend?
Thanks for sharing!
Gabe
--
Gabriel Sidler
Software Engineer, Eivycom GmbH, Zurich, Switzerland
--
To unsubscribe, e-mail:
<ma...@jakarta.apache.org>
For additional commands, e-mail:
<ma...@jakarta.apache.org>
--
To unsubscribe, e-mail: <ma...@jakarta.apache.org>
For additional commands, e-mail: <ma...@jakarta.apache.org>