PropertyUtils.copyProperties and DynaValidatorForm
Hi All, Trying to do a PropertyUtils.copyProperties(DynaValidatorForm,mybean) to copy the current values of my bean into my DynaValidatorForm and I hit a java.lang.NullPointerException when it tries to do this. Problem seems to be when I check for the form parameter (ActionForm - Execute), and try to create one if it doesnt exist: form = new DynaValidatorForm(); this fails to instanciate a new instance, leaving form==null. How *should* I be passing values to DynaValidatorForm?! Thanks J _ Get Hotmail on your mobile phone http://www.msn.co.uk/msnmobile - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and DynaValidatorForm
Hi Adam, From: Adam Hardy [EMAIL PROTECTED] Yes that's the way to populate the DVForm. If you need a form the easiest way to instantiate it is to make sure it is set in the struts-config.xml form = new DynaValidatorForm(); Any idea why this leaves form=null? The form I'm going to populate is defined in the struts config file. Could you provide a small code snippet that would go in the execute method? Thanks J. _ Tired of 56k? Get a FREE BT Broadband connection http://www.msn.co.uk/specials/btbroadband - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and DynaValidatorForm
Sure. This is what I do in my action (where form is passed into execute()) DynaValidatorActionForm sectionForm = (DynaValidatorActionForm) form; Long sectionId = new Long((String) sectionForm.get(id)); if (sectionId == null) throw new Exception(Section ID cannot be null!); //now we try to get the data object SectionFactory sectionFactory = new SectionFactory(); Section section = sectionFactory.getByPrimaryKey(conn, sectionId); BeanUtils.copyProperties(sectionForm, section); Once struts is configured OK then you will always get a form - that's why I don't check to see if it's null. This is the stuff in struts-config: form-beans form-bean name=sectionForm type=org.apache.struts.validator.DynaValidatorActionForm form-property name=id type=java.lang.String/ form-property name=index type=java.lang.String/ form-property name=title type=java.lang.String/ form-property name=dateCreated type=java.lang.String/ form-property name=dateDeleted type=java.lang.String/ /form-bean and actionpath=/secure/startSectionUpdate type=org.blacksail.linklib.section.SectionAction name=sectionForm scope=request validate=false parameter=display roles=user set-property property=secure value=false/ forward name=finished path=.section/ /action Perhaps you've not matched the form name in the form def. and the mapping. Or perhaps you've configured the types in the form def wrong which could cause an exception. Just guessing. Maybe you should check your logs. Good luck, Adam jack beany wrote: Hi Adam, From: Adam Hardy [EMAIL PROTECTED] Yes that's the way to populate the DVForm. If you need a form the easiest way to instantiate it is to make sure it is set in the struts-config.xml form = new DynaValidatorForm(); Any idea why this leaves form=null? The form I'm going to populate is defined in the struts config file. Could you provide a small code snippet that would go in the execute method? Thanks J. _ Tired of 56k? Get a FREE BT Broadband connection http://www.msn.co.uk/specials/btbroadband - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- struts 1.1 + tomcat 4.1.27 + java 1.4.2 Linux 2.4.20 RH9 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and DynaValidatorForm
Yes that's the way to populate the DVForm. If you need a form the easiest way to instantiate it is to make sure it is set in the struts-config.xml Adam jack beany wrote: Hi All, Trying to do a PropertyUtils.copyProperties(DynaValidatorForm,mybean) to copy the current values of my bean into my DynaValidatorForm and I hit a java.lang.NullPointerException when it tries to do this. Problem seems to be when I check for the form parameter (ActionForm - Execute), and try to create one if it doesnt exist: form = new DynaValidatorForm(); this fails to instanciate a new instance, leaving form==null. How *should* I be passing values to DynaValidatorForm?! Thanks J _ Get Hotmail on your mobile phone http://www.msn.co.uk/msnmobile - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] -- struts 1.1 + tomcat 4.1.27 + java 1.4.2 Linux 2.4.20 RH9 - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and DynaActionForm concepts
What about BeanUtils.copyProperties? AFAIK, PropertyUtils.copyProperties assumes the source and destination properties are the same datatype and no conversion is done, but BeanUtils.copyProperties handles conversions to a different datatype using the help of ConvertUtils. Maybe this is the problem...? Joe - Original Message - From: Joao Araujo [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Friday, March 07, 2003 10:46 PM Subject: PropertyUtils.copyProperties and DynaActionForm concepts Hi, Nowadays I use PropertyUtils.copyProperties to make the copy of property from the form to the database Bean easier. But, I realized that I cant use it the same way with DynaActionForm. What have you guys been using in this situation. Ex. of using propertyUtils. PropertyUtils.copyProperties(device, deviceForm); Thanks in advance. Joao, - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
PropertyUtils.copyProperties and DynaActionForm concepts
Hi, Nowadays I use PropertyUtils.copyProperties to make the copy of property from the form to the database Bean easier. But, I realized that I cant use it the same way with DynaActionForm. What have you guys been using in this situation. Ex. of using propertyUtils. PropertyUtils.copyProperties(device, deviceForm); Thanks in advance. Joao, - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and DynaActionForm concepts
On Fri, 2003-03-07 at 22:46, Joao Araujo wrote: Nowadays I use PropertyUtils.copyProperties to make the copy of property from the form to the database Bean easier. But, I realized that I cant use it the same way with DynaActionForm. What have you guys been using in this situation. Ex. of using propertyUtils. PropertyUtils.copyProperties(device, deviceForm); Um... I'm using DynaValidatorActionForms with that no problem. Dave - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: PropertyUtils.copyProperties() usage in 1.1-b2
Craig, Rana,
thanks for your responses, hoping you guys can provide some input:
From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]]
Subject: Re: PropertyUtils.copyProperties() usage in 1.1-b2
I'm trying to figure out what I am doing wrong with
PropertyUtils.copyProperties(). From within my Action, I have:
User user = bean;
DynaActionForm regForm = (DynaActionForm) form;
PropertyUtils.copyProperties(regForm, user);
When I look at what copyProperties is doing, it's getting a
PropertyDescriptor array from getPropertyDescriptors() with the user
bean correctly, then it iteratively tries to see if the
regForm has any
of the properties found in the user bean. But calling
getPropertyDescriptor(regForm, fieldname) seems to be
comparing the
(correct) field names from the bean against the *structure* of the
DynaActionForm component (i.e. the multipartRequestHandler,
dynaClass,
servlet, etc), instead of the DynaFields that I set up in my
form-bean/.
Which CVS version number of PropertyUtils are you looking at
(second line
of the sources? The version I'm looking at, 1.32 (i.e. the current
nightly builds), does not call getPropertyDescriptors() on a DynaBean.
K, here's what I'm seeing under PropertyUtils 1.32:
in copyProperties:
orig is neither Map nor DynaBean, so line 283 calls
getPropertyDescriptors(orig). Then, for each readMethod in the result, line
296 has:
String name = origDescriptors[i].getName();
if (getPropertyDescriptor(dest, name) != null) {
But getting into getPropertyDescriptor(), line 869 calls
getPropertyDescriptors(bean). If the dest is a DynaBean, I'm not seeing
where the instanceof DynaBean is -- it simply calls
Introspector.getBeanInfo().getPropertyDescriptors(), but the result of
getBeanInfo doesn't know anything about DynaBeans.
What am I missing here? Rana says this is working and appreciate his input,
especially with the release notes reference (thanks!) But tracing through
the code and triple-checking at the beans (they both have a name property),
I still can't see how this is going to work, and in practice, the destination
DynaBean is untouched.
Thanks again,
-b
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PropertyUtils.copyProperties() usage in 1.1-b2
Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Thanks a bunch, Brian -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
PropertyUtils.copyProperties() usage in 1.1-b2
Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Thanks a bunch, Brian -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
PropertyUtils.copyProperties() usage in 1.1-b2
Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Thanks a bunch, Brian -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
Re: PropertyUtils.copyProperties() usage in 1.1-b2
On Fri, 15 Nov 2002, Brian Topping wrote: Date: Fri, 15 Nov 2002 12:10:53 -0800 (PST) From: Brian Topping [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: PropertyUtils.copyProperties() usage in 1.1-b2 Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. Which CVS version number of PropertyUtils are you looking at (second line of the sources? The version I'm looking at, 1.32 (i.e. the current nightly builds), does not call getPropertyDescriptors() on a DynaBean. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Please try a recent nightly build. Besides bugfixes in Struts, there have been bugfixes in the Commons packages as well. Thanks a bunch, Brian Craig -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: PropertyUtils.copyProperties() usage in 1.1-b2
try getting the latest version of commons-beanutils.jar from commons project version(1.5), if u dont want to upgrade to nightly build of struts, but use struts 1.1b2. In version 1.5 of commons package, PropertyUtils works in both directions. release notes for version 1.5 montions about this fix. You may also want to look at BeanUtils.copyProperties(bean, bean) -Rana -Original Message- From: Brian Topping [mailto:topping;spies.com] Sent: Friday, November 15, 2002 3:11 PM To: [EMAIL PROTECTED] Subject: PropertyUtils.copyProperties() usage in 1.1-b2 Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Thanks a bunch, Brian -- 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: PropertyUtils.copyProperties() usage in 1.1-b2
On Fri, 15 Nov 2002, Brian Topping wrote: Date: Fri, 15 Nov 2002 12:10:53 -0800 (PST) From: Brian Topping [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: PropertyUtils.copyProperties() usage in 1.1-b2 Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. Which CVS version number of PropertyUtils are you looking at (second line of the sources? The version I'm looking at, 1.32 (i.e. the current nightly builds), does not call getPropertyDescriptors() on a DynaBean. I was using 1.30, but the code I was looking at seems to be the same on both 1.32 and 1.30. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Please try a recent nightly build. Besides bugfixes in Struts, there have been bugfixes in the Commons packages as well. Yes, trying that now, no luck. I guess it sounds like a local issue, since you probably would have recognized if I had been doing something silly :) I'll keep looking, it just doesn't seem to be doing an instanceof on the dest bean anywhere in the call chain to see if it should treat the DynaBean differently. Thanks a bunch, Brian Craig thanks again, -b -- To unsubscribe, e-mail: mailto:struts-user-unsubscribe;jakarta.apache.org For additional commands, e-mail: mailto:struts-user-help;jakarta.apache.org
RE: PropertyUtils.copyProperties() usage in 1.1-b2 ; problem using validation with LookupDispatchAction
I am able to get copyProperties to work with BeanUtils and PropertyUtils using version 1.5 of commons beanutils. 1. i am using DynaValidatorForm. 2. i have a BeanInfoClass for my bean providing the PropertyDescriptors. try replacing the commons-beanutils.jar with the latest version(1.5) of commons beanutils. i have one more issue, has anybody succesfully combined Validator Framework, Dynamic Forms and LookupDispatchAction . I am using DynaValidatorForm, but my form us not validated even if have validate=true in my action mapping. validation of DynaValidatorForm worked fine before using LookupDispatchAction. -rana. -Original Message- From: Brian Topping [mailto:[EMAIL PROTECTED]] Sent: Friday, November 15, 2002 8:16 PM To: [EMAIL PROTECTED] Subject: Re: PropertyUtils.copyProperties() usage in 1.1-b2 On Fri, 15 Nov 2002, Brian Topping wrote: Date: Fri, 15 Nov 2002 12:10:53 -0800 (PST) From: Brian Topping [EMAIL PROTECTED] Reply-To: Struts Users Mailing List [EMAIL PROTECTED] To: [EMAIL PROTECTED] Subject: PropertyUtils.copyProperties() usage in 1.1-b2 Hi all, happy friday (again... :) I'm trying to figure out what I am doing wrong with PropertyUtils.copyProperties(). From within my Action, I have: User user = bean; DynaActionForm regForm = (DynaActionForm) form; PropertyUtils.copyProperties(regForm, user); When I look at what copyProperties is doing, it's getting a PropertyDescriptor array from getPropertyDescriptors() with the user bean correctly, then it iteratively tries to see if the regForm has any of the properties found in the user bean. But calling getPropertyDescriptor(regForm, fieldname) seems to be comparing the (correct) field names from the bean against the *structure* of the DynaActionForm component (i.e. the multipartRequestHandler, dynaClass, servlet, etc), instead of the DynaFields that I set up in my form-bean/. Which CVS version number of PropertyUtils are you looking at (second line of the sources? The version I'm looking at, 1.32 (i.e. the current nightly builds), does not call getPropertyDescriptors() on a DynaBean. I was using 1.30, but the code I was looking at seems to be the same on both 1.32 and 1.30. I don't think nested properties are the answer, and copyProperties() is supposed to work with DynaBean in the source, destination, both or neither. Any ideas? The code seems to work fine when the source and destination are reversed. I'm using 1.1-b2. Please try a recent nightly build. Besides bugfixes in Struts, there have been bugfixes in the Commons packages as well. Yes, trying that now, no luck. I guess it sounds like a local issue, since you probably would have recognized if I had been doing something silly :) I'll keep looking, it just doesn't seem to be doing an instanceof on the dest bean anywhere in the call chain to see if it should treat the DynaBean differently. Thanks a bunch, Brian Craig thanks again, -b -- 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: PropertyUtils.copyProperties
Help. Can't get this to work. I've got a 'view' object Company ... trying to populate a DynaForm? Is that possible? CompanyView view = service.getCompany(Integer.valueOf(1)); DynaActionForm dynaForm = (DynaActionForm) form; System.err.println(view.getName()); --- Gives me CIBC PropertyUtils.copyProperties(dynaForm, view); System.err.println(dynaForm.getName()); Gives me null; Actually, I'd love to be able to do this straight from an EJB. Ideas? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
PropertyUtils.copyProperties
Help. Can't get this to work. I've got a 'view' object Company ... trying to populate a DynaForm? Is that possible? CompanyView view = service.getCompany(Integer.valueOf(1)); DynaActionForm dynaForm = (DynaActionForm) form; System.err.println(view.getName()); --- Gives me CIBC PropertyUtils.copyProperties(dynaForm, view); System.err.println(dynaForm.getName()); Gives me null; Ideas? -Original Message- From: Zahid Rahman [mailto:[EMAIL PROTECTED]] Sent: September 23, 2002 3:37 PM To: Struts Users Mailing List Subject: Re: logging in struts Oh look! Mention Academia and these people get up tight. I will correct your grammar for you. I 'am' highly suspicion 'who' this character is, in fact, a bot. He got lucky on a . I was never on the JSP-INTEREST list , yesterday or today. That is your friends doing the impersonations. I am convinced that you people who are on the user mailing, stay on it to impress. Do you want to know how impressed I am .. Calling me names in an email list just tells me that you are not only academically challenge but when challenged because your are academically challenged, you stoop to making quite cowardly remarks. The best posting I have read so far was the one written by Galbreath, Mark. He wrote we wrote our own login form. Would you like to have the .java Chapter 21 shows you how to write a login form using the struts framework. If you point your browser at this link www.objectworlds.com in the near future. You will see a complete web application using the struts framework. I very strongly suggest that you read the philosophy behind Model2. It says that Craig Mclaughlan is heading the Model2 framework, So that anyone wishing to use it can simply use it and not have to write your own. - - Original Message - From: Eddie Bush [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Monday, September 23, 2002 8:10 PM Subject: Re: logging in struts I highly suspicion this character is, in fact, a bot. He got lucky on a soundex match that came close to approximating the topic of interest. That's what I discount it to - nothing more. If I'm incorrect, I apologize in advance. It will take some serious convincing to make me believe he isn't though ... Hajratwala, Nayan (N.) wrote: Agreed that some previous posts have been pretty sketchy, but it seems to me that in this case he may have just misunderstood the question logging in struts to mean logging in IN struts... in which case his suggestion is probably valid. --- - Nayan Hajratwala - Chikli Consulting LLC - http://www.chikli.com -- Eddie Bush -- 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]
Problem with PropertyUtils.copyProperties(...
I am using a DynaActionForm:
form-bean name=userForm
dynamic=true
type=org.apache.struts.validator.DynaValidatorForm
form-property name=id type=java.lang.String/
form-property name=firstName type=java.lang.String/
form-property name=lastName type=java.lang.String/
form-property name=dispatch type=java.lang.String/
/form-bean
I want to perform the following in my action:
DynaActionForm f = (DynaActionForm)form;
User user = new User();
try{
PropertyUtils.copyProperties(user, f);
}
catch(Exception e){...}
My user object is composed as follows:
package ob.users;
public class UserDTO {
private String firstName;
private String lastName;
private Integer id;
public java.lang.String getFirstName() {
return firstName;
}
public Integer getId() {
return id;
}
public java.lang.String getLastName() {
return lastName;
}
public void setFirstName(java.lang.String value) {
firstName = value;
}
public void setId(Integer value) {
id = value;
}
public void setLastName(java.lang.String value) {
lastName = value;
}
}
And I keep on getting Error creating DTO -- java.lang.NoSuchMethodException:
Unknown property 'class'
I am relatively new using the bean utils package and I didn't find anything
in the archives. Can anyone tell me what I'm doing wrong.
Thanks in advance
**
Juan Alvarado
Internet Developer -- Manduca Management
(786)552-0504
[EMAIL PROTECTED]
AOL Instant Messenger: [EMAIL PROTECTED]
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Re: Problem with PropertyUtils.copyProperties(...
Juan,
I think I made a mistake (sort of) when I shared some of this code. I
didn't realize you don't need the dispatch field (or whatever you want
to name it) in the actual DynaActionForm or an ActionForm. I notice
that the UserDTO doesn't have the dispatch member in it, so maybe the
PropertyUtils is looking for to convert that field from the
DynaActionForm? (Not sure though just a guess since I haven't used
PropertyUtils ). Try just removing the
form-property name=dispatch type=java.lang.String/
from the DyanActionForm and see what happens.
Rick
On Wednesday, June 12, 2002, 11:15:40 AM, Juan wrote:
JASL I am using a DynaActionForm: form-bean name=userForm
JASL dynamic=true
JASL type=org.apache.struts.validator.DynaValidatorForm
JASL form-property name=id type=java.lang.String/
JASL form-property name=firstName type=java.lang.String/
JASL form-property name=lastName type=java.lang.String/
JASL form-property name=dispatch type=java.lang.String/
JASL /form-bean
JASL I want to perform the following in my action:
JASL DynaActionForm f = (DynaActionForm)form;
JASLUser user = new User();
JASL try{
JASL PropertyUtils.copyProperties(user, f);
JASL }
JASL catch(Exception e){...}
JASL My user object is composed as follows:
JASL package ob.users;
JASL public class UserDTO {
JASL private String firstName;
JASL private String lastName;
JASL private Integer id;
JASL public java.lang.String getFirstName() {
JASL return firstName;
JASL }
JASL public Integer getId() {
JASL return id;
JASL }
JASL public java.lang.String getLastName() {
JASL return lastName;
JASL }
JASL public void setFirstName(java.lang.String value) {
JASL firstName = value;
JASL }
JASL public void setId(Integer value) {
JASL id = value;
JASL }
JASL public void setLastName(java.lang.String value) {
JASL lastName = value;
JASL }
JASL }
JASL And I keep on getting Error creating DTO -- java.lang.NoSuchMethodException:
JASL Unknown property 'class'
JASL I am relatively new using the bean utils package and I didn't find anything
JASL in the archives. Can anyone tell me what I'm doing wrong.
JASL Thanks in advance
JASL **
JASL Juan Alvarado
JASL Internet Developer -- Manduca Management
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Rick
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I wish I had a dollar for every time I spent a dollar, because then,
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-Jack Handey
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Re: PropertyUtils.copyProperties question...
Corneliu Rachieru wrote: I have a bean called adminMap(a java.util.HashMap) defined that contains the keys id, username, password. I also have a DynaActionForm named form defined in the struts-config.xml as form-bean name=adminForm dynamic=true type=org.apache.struts.action.DynaActionForm form-property name=actiontype=java.lang.String/ form-property name=id type=java.lang.String/ form-property name=username type=java.lang.String/ form-property name=password type=java.lang.String/ /form-bean I've been trying to copy the contents of the my hashmap to the form using: PropertyUtils.copyProperties(form, adminMap); but that doesn't work (or at least it doesn't work in that form). However, if i copy the properties like this it works fine. ((DynaActionForm) form).set(id, adminMap.get(id)); ((DynaActionForm) form).set(username, (String) adminMap.get(username)); ((DynaActionForm) form).set(password, (String) adminMap.get(password)); I would really like to use PropertyUtils.copyProperties since that way i can keep my application truly dynamic and i don't have to access any properties in the actual code (except for struts-config but that's ok). Am I trying to do something crazy here (it was my understanding that PropertyUtils.copyProperties supports this, but i could be wrong) ? Also, did anyone dynamically copy a hashmap to a DynaActionForm in any dynamic way ? To copy from a map to a dynabean you need to use BeanUtils.populate. I've used it and it works. Looking through the source code for BeanUtils is a good idea because a lot of DynaBeans functionality is not implemented yet... greets, Klaasjan -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: PropertyUtils.copyProperties question...
Thanks for the suggestion. BeanUtils.populate works like one my initial custom solution, but the problem is that if my HashMap contains extra attributes that were not defined in the DynaActionForm, attempting to set those attributes causes an exception ( i would like them to be either ignored or added to the form). Any suggestions as to how this can be achieved ? (basically, i would need to get a list/map/collection of DynaActionForm's properties (which i though i could do with BeanUtils.describe(((DynaActionForm) form).getDynaClass())); but that doesn't work ), and set each property from the hashmap individually by checking if the key exists in the property list of the DynaActionForm. Is it me, or is there no way of doing this ? Thank you, Cornelius To copy from a map to a dynabean you need to use BeanUtils.populate. I've used it and it works. Looking through the source code for BeanUtils is a good idea because a lot of DynaBeans functionality is not implemented yet... greets, Klaasjan -Original Message- From: Klaasjan Brand [mailto:[EMAIL PROTECTED]] Sent: Friday, April 12, 2002 3:00 AM To: Struts Users Mailing List Subject: Re: PropertyUtils.copyProperties question... Importance: High Corneliu Rachieru wrote: I have a bean called adminMap(a java.util.HashMap) defined that contains the keys id, username, password. I also have a DynaActionForm named form defined in the struts-config.xml as form-bean name=adminForm dynamic=true type=org.apache.struts.action.DynaActionForm form-property name=action type=java.lang.String/ form-property name=id type=java.lang.String/ form-property name=username type=java.lang.String/ form-property name=password type=java.lang.String/ /form-bean I've been trying to copy the contents of the my hashmap to the form using: PropertyUtils.copyProperties(form, adminMap); but that doesn't work (or at least it doesn't work in that form). However, if i copy the properties like this it works fine. ((DynaActionForm) form).set(id, adminMap.get(id)); ((DynaActionForm) form).set(username, (String) adminMap.get(username)); ((DynaActionForm) form).set(password, (String) adminMap.get(password)); I would really like to use PropertyUtils.copyProperties since that way i can keep my application truly dynamic and i don't have to access any properties in the actual code (except for struts-config but that's ok). Am I trying to do something crazy here (it was my understanding that PropertyUtils.copyProperties supports this, but i could be wrong) ? Also, did anyone dynamically copy a hashmap to a DynaActionForm in any dynamic way ? -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
PropertyUtils.copyProperties question...
I have a bean called adminMap(a java.util.HashMap) defined that contains the keys id, username, password. I also have a DynaActionForm named form defined in the struts-config.xml as form-bean name=adminForm dynamic=true type=org.apache.struts.action.DynaActionForm form-property name=actiontype=java.lang.String/ form-property name=id type=java.lang.String/ form-property name=username type=java.lang.String/ form-property name=password type=java.lang.String/ /form-bean I've been trying to copy the contents of the my hashmap to the form using: PropertyUtils.copyProperties(form, adminMap); but that doesn't work (or at least it doesn't work in that form). However, if i copy the properties like this it works fine. ((DynaActionForm) form).set(id, adminMap.get(id)); ((DynaActionForm) form).set(username, (String) adminMap.get(username)); ((DynaActionForm) form).set(password, (String) adminMap.get(password)); I would really like to use PropertyUtils.copyProperties since that way i can keep my application truly dynamic and i don't have to access any properties in the actual code (except for struts-config but that's ok). Am I trying to do something crazy here (it was my understanding that PropertyUtils.copyProperties supports this, but i could be wrong) ? Also, did anyone dynamically copy a hashmap to a DynaActionForm in any dynamic way ? Thank you, Corneliu
PropertyUtils.copyProperties function
It seems to me that PropertyUtils.copyProperties doesn't work properly.
Could anyone show me how it works? The following is my code and output:
//
RegForm theRegForm = (RegForm)form;
Student stdt = (Student)session.getAttribute(student);
Address addr = (Address)session.getAttribute(address);
if (stdt == null) {
System.out.println(\tStudent null!!!);
}
try {
System.out.println(\tid=+theRegForm.getId());
System.out.println(\tcity=+theRegForm.getCity());
PropertyUtils.copyProperties(theRegForm, stdt);
PropertyUtils.copyProperties(theRegForm, addr);
System.out.println(\tid=+stdt.getId());
System.out.println(\tcity=+addr.getCity());
} catch (Exception e) {
System.out.println(\t+e.toString());
}
/
output:
id=123
city=Ann Arbor
id=null
city=null
---
Henry Lu
MCITphone: (734) 936-2063
University of Michigan Medical Center fax: (734) 763-4372
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using PropertyUtils.copyProperties on an entity bean
Hi all, I am running into some trouble mapping between form beans and entity beans. Looking through the mailarchives I found out that the best way to use ejbs with stuts is to load and unload ejbs in the struts actions. So that's exactly what I did. However when trying to map the contents of the formbean to an container managed entitybean using the propertyutils form the apache commons project 1.1 The bean stops being persistent. eg. In the following example : profile.setUsername(before); PropertyUtils.copyProperties(profile, regform); profile.setUsername (after); the first setUsername is stored to the database the propertyUtils copy the properties correctly however they are not stored to the underlying database any subsequent setter calls don't get stored eighter. So the username is never set to after. I am running resin cmp 1.03 on linux with a mysql backend. To me this seems like a bug in the resin ejb 2 implementation. But I could be missing something as I don't have a lot of experience using ejb's. So I'd like to make sure before taking this to the folks at caucho Does someone have an idea what could be causing this. -- Jelmer -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Re: PropertyUtils.copyProperties and session forms
On Thu, 19 Jul 2001, Matt Raible wrote: If I configure a form to be stored in the session for both an EditAction and SaveAction, should I have to do the following? PropertyUtils.copyProperties(sessionForm, editForm); You can do this. Or, if the data is literally the same, you might just consider using the same form bean for both actions. Thanks, Matt Craig
PropertyUtils.copyProperties and session forms
If I configure a form to be stored in the session for both an EditAction and SaveAction, should I have to do the following? PropertyUtils.copyProperties(sessionForm,editForm); Thanks, Matt
PropertyUtils.copyProperties
We have the following architecture/flow: components: List.jsp EditAction.java EntityForm.java (contains get/set for action, get/set for EntityDO) EntityDO.java Detail.jsp SaveAction.java A user clicks on a link in List.jsp to view the details of an item. The EditAction servlet creates an EntityDO and puts it into the session and the EntityForm. PropertyUtils.setNestedProperty(form, "DO", createdDO); The Detail.jsp displays the form elements from the DO just fine. The SaveAction servlet is called when the user submits changes from the form. The SaveAction servlet grabs the DO from the session and uses the following line to copy elements from the form into the DO from the session PropertyUtils.copyProperties(sessionDO,PropertyUtils.getNestedProperty(form,"DO")); The problem I am having is that I want ONLY the elements from the form that are displayed on the screen to be copied into the sessionDO - HOWEVER, it is copying ALL DO attributes - and many of them are getting set to their default values. What I would like is that the sessionDO retains all values that are not displayed in the form. The weird thing is that some values are retained from the session, but some are not - and the form seems to be resetting some values. I hope I am doing something wrong and this can be fixed. My workaround in the meantime is to put all DO attributes as hidden fields in the form, but this seems like a real pain. Thanks, Matt
PropertyUtils.copyProperties
Hi all, I just wonder if anyone have a utility class that is perform something to PropertyUtils.copyProperties() but with type conversion? The reason is that I am coding all my ActionForm with string (for validation concern) but the underlying objects are in their respective type, so there is some tedious coding that copy the properties from the form/object back and forth. Any help will be appreciated. Fred _ Get your FREE download of MSN Explorer at http://explorer.msn.com
RE: PropertyUtils.copyProperties
Hi Fred, In its current form, its not locale-sensitive on date conversion (that could be fixed), but it served my needs for converting previously validated strings. It also supports going the other direction, ie., converting a Date object to a formatted String. Support for other types could be easily added too. private StringConverter sc = new StringConverter(); // snippet from populating my Form this.setBirthDate(null == contact.getBirthDate() ? null : sc.formatDate(contact.getBirthDate())); // snippet from getting my domain object from the form contact.setBirthDate(null == getBirthDate() ? null : sc.toDate(getBirthDate())); Hope its useful, Levi -Original Message- From: Fred Lo [mailto:[EMAIL PROTECTED]] Sent: Thursday, April 12, 2001 5:25 AM To: [EMAIL PROTECTED] Subject: PropertyUtils.copyProperties Hi all, I just wonder if anyone have a utility class that is perform something to PropertyUtils.copyProperties() but with type conversion? The reason is that I am coding all my ActionForm with string (for validation concern) but the underlying objects are in their respective type, so there is some tedious coding that copy the properties from the form/object back and forth. Any help will be appreciated. Fred _ Get your FREE download of MSN Explorer at http://explorer.msn.com StringConverter.java StringValidator.java
PropertyUtils.copyProperties usage
Hi All, Is it necessary that all the attributes of Form Beans should be strings? Should I represent my dates also as strings?? If I use non string data types for the dates in my Model objects then how can I use the PropertyUtils.copyProperties(formBean, Object) method to copy the data from my model obejct to the Form Bean?? Can any one comment on this? Ur feed back is really appreciated. Thanks, Uday.
PropertyUtils.copyProperties ?
Hi, If I am using PropertyUtils.copyProperties(user, info) then original bean info must to have all properties that user bean has? If info has only 3 properties, and user has 18, copy will not work? I need to use this way, because, for example, logon form needs only 3 properties, but user form (full user info) has 18 properties. And only user bean has a method (function) to check if a user is legal. Thanks in advance. Maya
Re: PropertyUtils.copyProperties ?
Thank you, Craig. You were right. I had removed (and forgot) a hidden property, because I cannot figure out how to replace "nested tags". Can somebody help me to replace html:hidden property="B" value='bean:message key ="A"/'/ Do I need to use jsp:useBean ...jsp:getProperty... and bean class is org.apache.struts.BEAN ... Thanks, Maya "Craig R. McClanahan" wrote: On Tue, 20 Mar 2001, Maya Muchnik wrote: Hi, If I am using PropertyUtils.copyProperties(user, info) then original bean info must to have all properties that user bean has? If info has only 3 properties, and user has 18, copy will not work? I need to use this way, because, for example, logon form needs only 3 properties, but user form (full user info) has 18 properties. And only user bean has a method (function) to check if a user is legal. The copyProperties() method will only copy when the property names match. It will ignore any unmatching properties in the origin or destination beans. Thanks in advance. Maya Craig
Re: PropertyUtils.copyProperties ?
On Tue, 20 Mar 2001, Maya Muchnik wrote: Hi, If I am using PropertyUtils.copyProperties(user, info) then original bean info must to have all properties that user bean has? If info has only 3 properties, and user has 18, copy will not work? I need to use this way, because, for example, logon form needs only 3 properties, but user form (full user info) has 18 properties. And only user bean has a method (function) to check if a user is legal. The copyProperties() method will only copy when the property names match. It will ignore any unmatching properties in the origin or destination beans. Thanks in advance. Maya Craig
PropertyUtils.copyProperties and EJB beans
I am trying to use copyProperties() to copy everything FROM a standard bean, TO an enterprise javabean (entity bean). When I do so, I get the following exception: Name: java.lang.IllegalArgumentExceptionMessage: object is not an instance of declaring class Stack: java.lang.IllegalArgumentException: object is not an instance of declaring class at java.lang.reflect.Method.invoke(Native Method) at org.apache.struts.util.PropertyUtils.getSimpleProperty(PropertyUtils.java:591) at org.apache.struts.util.PropertyUtils.copyProperties(PropertyUtils.java:207) at com.reachmydoctor.ejb.patientSessionBean.createAccount(patientSessionBean.java:109) I suspect this may have something to do with the fact that my destination, being a remote interface, is a funky jBoss proxy class and not a standard bean at all. Nevertheless is there any way I can get this to work? I was really counting on this working... Otherwise I have about 65 properties to copy by hand! Thanks, Bryan
