Re: Passing an (Dyna)ActionForm to the business object
They actually come from commons Beanutils. http://jakarta.apache.org/commons/beanutils.html API http://jakarta.apache.org/commons/beanutils/api/index.html [EMAIL PROTECTED] wrote: Chris - Where are these classes? I can't find them in the api? (1.1-b2) Thanks, Kevin Hooke Quoting Chris Schneider: Almost forgot about PropertyUtils.copyProperties and BeanUtils.copyProperties (I think the difference is that BeanUtils handles type conversion). If the property names of your model match the property names of your form, you should be able to use one of those methods to populate your model with a single method call. This email message and all attachments transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Please DO NOT forward this email outside of the recipient's Company unless expressly authorized to do so herein. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. Any views expressed in this email message are those of the individual sender except where the sender specifically states them to be the views of Indus International, Inc. -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- Vincent Stoessel Linux Systems Developer vincent xaymaca.com -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
Re: Passing an (Dyna)ActionForm to the business object
Yup, and they're distributed with Struts 1.1 in commons-beanutils.jar. Quoting Vincent Stoessel [EMAIL PROTECTED]: They actually come from commons Beanutils. http://jakarta.apache.org/commons/beanutils.html API http://jakarta.apache.org/commons/beanutils/api/index.html [EMAIL PROTECTED] wrote: Chris - Where are these classes? I can't find them in the api? (1.1-b2) Thanks, Kevin Hooke Quoting Chris Schneider: Almost forgot about PropertyUtils.copyProperties and BeanUtils.copyProperties (I think the difference is that BeanUtils handles type conversion). If the property names of your model match the property names of your form, you should be able to use one of those methods to populate your model with a single method call. This email message and all attachments transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Please DO NOT forward this email outside of the recipient's Company unless expressly authorized to do so herein. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. Any views expressed in this email message are those of the individual sender except where the sender specifically states them to be the views of Indus International, Inc. -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- Vincent Stoessel Linux Systems Developer vincent xaymaca.com -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- Kris Schneider mailto:kris;dotech.com D.O.Tech http://www.dotech.com/ -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: Passing an (Dyna)ActionForm to the business object
They were deprecated in 1.0.2 and removed in 1.1. Edgar -Original Message- From: [EMAIL PROTECTED] [mailto:Kevin.Hooke;indus.com] Sent: Wednesday, November 06, 2002 12:20 PM To: '[EMAIL PROTECTED]' Subject: Passing an (Dyna)ActionForm to the business object Chris - Where are these classes? I can't find them in the api? (1.1-b2) Thanks, Kevin Hooke Quoting Chris Schneider: Almost forgot about PropertyUtils.copyProperties and BeanUtils.copyProperties (I think the difference is that BeanUtils handles type conversion). If the property names of your model match the property names of your form, you should be able to use one of those methods to populate your model with a single method call. This email message and all attachments transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Please DO NOT forward this email outside of the recipient's Company unless expressly authorized to do so herein. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. Any views expressed in this email message are those of the individual sender except where the sender specifically states them to be the views of Indus International, Inc. -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: Passing an (Dyna)ActionForm to the business object
Only the classes that were *bundled* in 1.0.2 have been deprecated (org.apache.struts.util package). The classes now live in Commons BeanUtils (org.apache.commons.beanutils package), as previously answered. Quoting edgar [EMAIL PROTECTED]: They were deprecated in 1.0.2 and removed in 1.1. Edgar -Original Message- From: [EMAIL PROTECTED] [mailto:Kevin.Hooke;indus.com] Sent: Wednesday, November 06, 2002 12:20 PM To: '[EMAIL PROTECTED]' Subject: Passing an (Dyna)ActionForm to the business object Chris - Where are these classes? I can't find them in the api? (1.1-b2) Thanks, Kevin Hooke Quoting Chris Schneider: Almost forgot about PropertyUtils.copyProperties and BeanUtils.copyProperties (I think the difference is that BeanUtils handles type conversion). If the property names of your model match the property names of your form, you should be able to use one of those methods to populate your model with a single method call. This email message and all attachments transmitted with it are for the sole use of the intended recipient(s) and may contain confidential and privileged information. Please DO NOT forward this email outside of the recipient's Company unless expressly authorized to do so herein. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. Any views expressed in this email message are those of the individual sender except where the sender specifically states them to be the views of Indus International, Inc. -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- Kris Schneider mailto:kris;dotech.com D.O.Tech http://www.dotech.com/ -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: Passing an (Dyna)ActionForm to the business object
I would say you wouldn't necessarily violate MVC if you pass the DynaActionForm as a DynaBean into your model. Your model doesn't need an Form functionality, it only needs to access the data which is supported by the DynaBean contract. DynaBean is not bound to any presentation layer and therefore does not couple your business tier to your web tier. When passing data from my web tier to the business tier, I tend to convert the data contained in the form into data structures native to the business tier; Data Transport Objects (DTO) sometimes refered to as ValueObjects. I then pass around these DTOs. There has been plenty of discussion on this list and depending on which engineer you speak with you may get a different answer. For more information on this, search the archives. HTH, robert -Original Message- From: Vincent Stoessel [mailto:vincent;xaymaca.com] Sent: Tuesday, November 05, 2002 2:34 PM To: Struts Users Subject: Passing an (Dyna)ActionForm to the business object I know I have probably violated MVC by doing this but while trying to find an elegant solution to passing field values between my Action classes and my Model Classes I went ahead and passed the whole darn DyaActionForm (daf) to my Model class: Why did I got to the dark side? It was so convenient to only have to add/remove fields in one class (and in struts-config.xml). I am working with a massive form that is in flux and editing 2 classes all the time was slowing me down: // The Old way: the force in myAction: DynaActionForm daf = (DynaActionForm) acForm ; myModel mym = new myModel(); String firstname = (String) daf.get(fname); String lastname = (String) daf.get(lname) ; String street = (String)daf.get(street) ; String city = (String)daf.get(city) ; String state = (String)daf.get(state) ; myModel.doBusiness(firstname, lastname,street,city,state); then in myModel: PreparedStatement pstmt = con.prepareStatement(qstr); pstmt.setString(1,(String)daf.get(firstname)); pstmt.setString(2,(String)daf.get(lastname)); pstmt.setString(3,(String)daf.get(street)); pstmt.setString(4, (String)daf.get(city)); pstmt.setString(5, (String)daf.get(state)); // the New Way: the dark side now I can just do: myModel mym = new myModel(); myModel.doBusiness(daf); Yes, in myModel class I still have to break out daf.getXXX but at least now all thefields can be managed from one place and less prone to mismached case/spelling (for me anyway) than it was before. Of course I really do not want to violate the Struts MVC model, is there a better way than the first method? Thanks All -- Vincent Stoessel Linux Systems Developer vincent xaymaca.com -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: Passing an (Dyna)ActionForm to the business object
+1
Although it may seem like splitting hairs because (in your case) the same
object instance is passed to the doBusiness method, there's a huge
architectural/design difference between:
public class myModel {
public void doBusiness(DynaActionForm data) {
...
}
}
and:
public class myModel {
public void doBusiness(DynaBean data) {
...
}
}
I suppose another possibility would be to use BeanUtils.describe or
PropertyUtils.describe (not sure which is preferred) to generate a Map to pass
to the doBusiness method. Either describe method can deal with a DynaBean.
Quoting Robert Taylor [EMAIL PROTECTED]:
I would say you wouldn't necessarily violate MVC if you pass the
DynaActionForm as a DynaBean into your model. Your model doesn't need
an Form functionality, it only needs to access the data which is
supported
by the DynaBean contract. DynaBean is not bound to any presentation layer
and
therefore does not couple your business tier to your web tier.
When passing data from my web tier to the business tier, I tend to convert
the data contained in the form into data structures native to the business
tier;
Data Transport Objects (DTO) sometimes refered to as ValueObjects. I then
pass
around these DTOs.
There has been plenty of discussion on this list and depending on which
engineer
you speak with you may get a different answer. For more information on
this,
search
the archives.
HTH,
robert
-Original Message-
From: Vincent Stoessel [mailto:vincent;xaymaca.com]
Sent: Tuesday, November 05, 2002 2:34 PM
To: Struts Users
Subject: Passing an (Dyna)ActionForm to the business object
I know I have probably violated MVC by doing this but
while trying to find an elegant solution to passing
field values between my Action classes and my Model Classes
I went ahead and passed the whole darn DyaActionForm (daf)
to my Model class:
Why did I got to the dark side? It was so convenient to
only have to add/remove fields in one class (and in struts-config.xml).
I am working with a massive form that is in flux and editing 2 classes
all the time was slowing me down:
// The Old way: the force
in myAction:
DynaActionForm daf = (DynaActionForm) acForm ;
myModel mym = new myModel();
String firstname = (String) daf.get(fname);
String lastname = (String) daf.get(lname) ;
String street = (String)daf.get(street) ;
String city = (String)daf.get(city) ;
String state = (String)daf.get(state) ;
myModel.doBusiness(firstname, lastname,street,city,state);
then in myModel:
PreparedStatement pstmt = con.prepareStatement(qstr);
pstmt.setString(1,(String)daf.get(firstname));
pstmt.setString(2,(String)daf.get(lastname));
pstmt.setString(3,(String)daf.get(street));
pstmt.setString(4, (String)daf.get(city));
pstmt.setString(5, (String)daf.get(state));
// the New Way: the dark side
now I can just do:
myModel mym = new myModel();
myModel.doBusiness(daf);
Yes, in myModel class I still have to break out daf.getXXX but at least
now all thefields can be managed from one place and less prone to
mismached case/spelling (for me anyway) than it was before.
Of course I really do not want to violate the Struts MVC model, is there
a better way than the first method?
Thanks All
--
Vincent Stoessel
Linux Systems Developer
vincent xaymaca.com
--
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mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail:
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--
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For additional commands, e-mail:
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--
Kris Schneider mailto:kris;dotech.com
D.O.Tech http://www.dotech.com/
--
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For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
Re: Passing an (Dyna)ActionForm to the business object
Kris Schneider wrote:
+1
Although it may seem like splitting hairs because (in your case) the same
object instance is passed to the doBusiness method, there's a huge
architectural/design difference between:
public class myModel {
public void doBusiness(DynaActionForm data) {
...
}
}
and:
public class myModel {
public void doBusiness(DynaBean data) {
...
}
}
I suppose another possibility would be to use BeanUtils.describe or
PropertyUtils.describe (not sure which is preferred) to generate a Map to pass
to the doBusiness method. Either describe method can deal with a DynaBean.
This is cool. I will give it a whirl.
Thanks.
--
Vincent Stoessel
Linux Systems Developer
vincent xaymaca.com
--
To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: Passing an (Dyna)ActionForm to the business object
Almost forgot about PropertyUtils.copyProperties and BeanUtils.copyProperties
(I think the difference is that BeanUtils handles type conversion). If the
property names of your model match the property names of your form, you should
be able to use one of those methods to populate your model with a single method
call.
Quoting Kris Schneider [EMAIL PROTECTED]:
+1
Although it may seem like splitting hairs because (in your case) the same
object instance is passed to the doBusiness method, there's a huge
architectural/design difference between:
public class myModel {
public void doBusiness(DynaActionForm data) {
...
}
}
and:
public class myModel {
public void doBusiness(DynaBean data) {
...
}
}
I suppose another possibility would be to use BeanUtils.describe or
PropertyUtils.describe (not sure which is preferred) to generate a Map to
pass
to the doBusiness method. Either describe method can deal with a DynaBean.
Quoting Robert Taylor [EMAIL PROTECTED]:
I would say you wouldn't necessarily violate MVC if you pass the
DynaActionForm as a DynaBean into your model. Your model doesn't need
an Form functionality, it only needs to access the data which is
supported
by the DynaBean contract. DynaBean is not bound to any presentation layer
and
therefore does not couple your business tier to your web tier.
When passing data from my web tier to the business tier, I tend to
convert
the data contained in the form into data structures native to the
business
tier;
Data Transport Objects (DTO) sometimes refered to as ValueObjects. I then
pass
around these DTOs.
There has been plenty of discussion on this list and depending on which
engineer
you speak with you may get a different answer. For more information on
this,
search
the archives.
HTH,
robert
-Original Message-
From: Vincent Stoessel [mailto:vincent;xaymaca.com]
Sent: Tuesday, November 05, 2002 2:34 PM
To: Struts Users
Subject: Passing an (Dyna)ActionForm to the business object
I know I have probably violated MVC by doing this but
while trying to find an elegant solution to passing
field values between my Action classes and my Model Classes
I went ahead and passed the whole darn DyaActionForm (daf)
to my Model class:
Why did I got to the dark side? It was so convenient to
only have to add/remove fields in one class (and in struts-config.xml).
I am working with a massive form that is in flux and editing 2 classes
all the time was slowing me down:
// The Old way: the force
in myAction:
DynaActionForm daf = (DynaActionForm) acForm ;
myModel mym = new myModel();
String firstname = (String) daf.get(fname);
String lastname = (String) daf.get(lname) ;
String street = (String)daf.get(street) ;
String city = (String)daf.get(city) ;
String state = (String)daf.get(state) ;
myModel.doBusiness(firstname, lastname,street,city,state);
then in myModel:
PreparedStatement pstmt = con.prepareStatement(qstr);
pstmt.setString(1,(String)daf.get(firstname));
pstmt.setString(2,(String)daf.get(lastname));
pstmt.setString(3,(String)daf.get(street));
pstmt.setString(4, (String)daf.get(city));
pstmt.setString(5, (String)daf.get(state));
// the New Way: the dark side
now I can just do:
myModel mym = new myModel();
myModel.doBusiness(daf);
Yes, in myModel class I still have to break out daf.getXXX but at
least
now all thefields can be managed from one place and less prone to
mismached case/spelling (for me anyway) than it was before.
Of course I really do not want to violate the Struts MVC model, is
there
a better way than the first method?
Thanks All
--
Vincent Stoessel
Linux Systems Developer
vincent xaymaca.com
--
To unsubscribe, e-mail:
mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail:
mailto:struts-user-help;jakarta.apache.org
--
To unsubscribe, e-mail:
mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail:
mailto:struts-user-help;jakarta.apache.org
--
Kris Schneider mailto:kris;dotech.com
D.O.Tech http://www.dotech.com/
--
To unsubscribe, e-mail:
mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail:
mailto:struts-user-help;jakarta.apache.org
--
Kris Schneider mailto:kris;dotech.com
D.O.Tech http://www.dotech.com/
--
To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org
For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
