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Posted to user@struts.apache.org by alex zaim <ic...@yahoo.com> on 2011/02/24 15:17:36 UTC
a field is not being initialized in my struts app
i have a Organization.java class that has a field named "name" and get and set methods.
Then i use a Project.java class that extends Organization. Organization.java also has an User.java class that also has a "name" field. I use the Project class as a bean that is populated after a form is being submitted. The problem is that ( Project) Organization.name is not being initialized when (Project) Organization.User.name IS being initialized. Can anyone help me telling me what i've done wrong? I've been checking my field and method names for a long tine now and i'm stuck, though everything seems to be in good shape.
My classes and various files follow:
// Organization.java
public class Organization {
private int id;
private User[] users;
private String name="no name yet";
private User president;
public String toString(){
return "ID:"+id+"; Users:<not yet>"+"; Name:"+name+"; President:"+president.getName();
}
public void setName(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setPresident(User president) {
this.president = president;
}
public User getPresident() {
return president;
}
}
// Project.java
public class Project extends Organization{
public Project(){
super();
}
}
// struts.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<constant name="struts.devMode" value="true" />
<package name="translators" extends="struts-default">
<action name="test" class="net.translators.actions.TestAction" method="execute">
<result name="success">/test.jsp</result>
</action>
<action name="createproject" class="net.translators.actions.CreateProjectAction" method="execute">
<result name="success">/tests/message.jsp</result>
<result name="input">/tests/createproject.jsp</result>
</action>
<action name="create-a-project" class="net.translators.actions.CreateProjectAction" method="dummy">
<result name ="success">/tests/createproject.jsp</result>
</action>
</package>
</struts>
// test.jsp has this line ("Point of entrance")
<a href="<s:url action="tests/create-a-project"/>">Create a Project</a>
// createproject.jsp has this form
<s:form action="createproject">
<s:textfield key="project.name"/>
<s:textfield key="project.president.name"/>
<s:submit label="Submiter"/>
</s:form>
// the resource file that is named after the Action class:
project.name=Projects name
project.users=Multiple Users
project.president.name=Presidents name
project.id=DB ID
// The action class
public class CreateProjectAction extends ActionSupport{
private Project project =null;
private String message = "NULL";
public void setProject(Project pr){
this.project = pr;
}
public String execute(){
if (project !=null ){
message = "Execute: "+project.toString();
}
return SUCCESS;
}
@SkipValidation
public String dummy(){
return SUCCESS;
}
public void validate(){
if(project ==null || project.getName().length()==0){
addFieldError( "project.name", "Name is required." );
}
message = "Validate";
}
public void setMessage(String message) {
this.message = message;
}
public String getMessage() {
return message;
}
}
Re: Forum Advice
Posted by findbestopensource <fi...@gmail.com>.
Here are few open source forum software.
http://www.findbestopensource.com/tagged/forum-software
Also, take a look at these products, If you want to build forum similar to
stackoverflow. (These are not Java products)
http://www.findbestopensource.com/tagged/stackoverflow-like
Regards
Aditya
www.findbestopensource.com
On Fri, Feb 25, 2011 at 9:17 AM, Jerson John <je...@cprvision.com> wrote:
> Hi all,
> Thanks for all of your comments.Really appreciate....now I got some idea
> to start this....
>
> Many Thanks and Regards,
>
> Jerson
>
> Many Thanks and Regards,
>
> Jerson
>
>
> -----Original Message-----
> From: Wendy Smoak [mailto:wsmoak@gmail.com]
> Sent: Friday, February 25, 2011 11:07 AM
> To: Struts Users Mailing List
> Subject: Re: Forum Advice
>
> On Thu, Feb 24, 2011 at 9:57 PM, Jerson John <je...@cprvision.com> wrote:
> > How can i do forum in Struts 2...Is it has to custom build or is there
> > any api or opensource application or thirdpart thing...Beacuse now I am
> > heading towards building the forum for my application....Please help me
>
> I can't imagine anyone needing to write forum software from scratch at
> this point. There are plenty of options out there -- I would
> evaluate several and see what fits your needs.
>
> --
> Wendy
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
RE: Forum Advice
Posted by Jerson John <je...@cprvision.com>.
Hi all,
Thanks for all of your comments.Really appreciate....now I got some idea
to start this....
Many Thanks and Regards,
Jerson
Many Thanks and Regards,
Jerson
-----Original Message-----
From: Wendy Smoak [mailto:wsmoak@gmail.com]
Sent: Friday, February 25, 2011 11:07 AM
To: Struts Users Mailing List
Subject: Re: Forum Advice
On Thu, Feb 24, 2011 at 9:57 PM, Jerson John <je...@cprvision.com> wrote:
> How can i do forum in Struts 2...Is it has to custom build or is there
> any api or opensource application or thirdpart thing...Beacuse now I am
> heading towards building the forum for my application....Please help me
I can't imagine anyone needing to write forum software from scratch at
this point. There are plenty of options out there -- I would
evaluate several and see what fits your needs.
--
Wendy
---------------------------------------------------------------------
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For additional commands, e-mail: user-help@struts.apache.org
---------------------------------------------------------------------
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Re: Forum Advice
Posted by Wendy Smoak <ws...@gmail.com>.
On Thu, Feb 24, 2011 at 9:57 PM, Jerson John <je...@cprvision.com> wrote:
> How can i do forum in Struts 2...Is it has to custom build or is there
> any api or opensource application or thirdpart thing...Beacuse now I am
> heading towards building the forum for my application....Please help me
I can't imagine anyone needing to write forum software from scratch at
this point. There are plenty of options out there -- I would
evaluate several and see what fits your needs.
--
Wendy
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: Forum Advice
Posted by Brian Thompson <el...@gmail.com>.
You'll probably have to build it from scratch. This Stackoverflow post [1]
might be of some help, but it's a bit more general than what you're looking
for (focused on Java rather than Struts-based forums).
-Brian
[1] -
http://stackoverflow.com/questions/235729/whats-the-best-java-based-forum-software
On Thu, Feb 24, 2011 at 8:57 PM, Jerson John <je...@cprvision.com> wrote:
> Hi,
> How can i do forum in Struts 2...Is it has to custom build or is there
> any api or opensource application or thirdpart thing...Beacuse now I am
> heading towards building the forum for my application....Please help me
>
> Many Thanks and Regards,
>
> Jerson
>
>
Forum Advice
Posted by Jerson John <je...@cprvision.com>.
Hi,
How can i do forum in Struts 2...Is it has to custom build or is there
any api or opensource application or thirdpart thing...Beacuse now I am
heading towards building the forum for my application....Please help me
Many Thanks and Regards,
Jerson
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: a field is not being initialized in my struts app
Posted by alex zaim <ic...@yahoo.com>.
I'm not sure too. :)
I've just discovered that the absence of getProject() was the cause of the problem. I still can't understand why it could populate project.user.name without it, but it couldn't poppulate project.name. Or why would it need it ANYWAY? anyway... i'm glad it's solved and i can continue with my project. Perhaps this mail can serve the developers as a bug description, instead. :)
Lesson to learn: Never make assumptions and act according to them, but, instead, research or do everything for "just in case". :) Though the later is not recommended.
--- On Thu, 2/24/11, Maurizio Cucchiara <ma...@gmail.com> wrote:
From: Maurizio Cucchiara <ma...@gmail.com>
Subject: Re: a field is not being initialized in my struts app
To: "Struts Users Mailing List" <us...@struts.apache.org>
Date: Thursday, February 24, 2011, 2:20 PM
I'm not sure it will work, try to make an instance of te project field
instead of setting null value
Maurizio Cucchiara
Il giorno 24/feb/2011 15.18, "alex zaim" <ic...@yahoo.com> ha scritto:
> i have a Organization.java class that has a field named "name" and get and
set methods.
> Then i use a Project.java class that extends Organization.
Organization.java also has an User.java class that also has a "name" field.
I use the Project class as a bean that is populated after a form is being
submitted. The problem is that ( Project) Organization.name is not being
initialized when (Project) Organization.User.name IS being initialized. Can
anyone help me telling me what i've done wrong? I've been checking my field
and method names for a long tine now and i'm stuck, though everything seems
to be in good shape.
> My classes and various files follow:
> // Organization.java
> public class Organization {
> private int id;
> private User[] users;
> private String name="no name yet";
> private User president;
>
> public String toString(){
> return "ID:"+id+"; Users:<not yet>"+"; Name:"+name+";
President:"+president.getName();
> }
> public void setName(String name) {
> this.name = name;
> }
> public String getName() {
> return name;
> }
> public void setPresident(User president) {
> this.president = president;
> }
> public User getPresident() {
> return president;
> }
> }
>
> // Project.java
> public class Project extends Organization{
> public Project(){
> super();
> }
> }
>
> // struts.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE struts PUBLIC
> "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
> "http://struts.apache.org/dtds/struts-2.0.dtd">
>
> <struts>
> <constant name="struts.devMode" value="true" />
> <package name="translators" extends="struts-default">
> <action name="test" class="net.translators.actions.TestAction"
method="execute">
> <result name="success">/test.jsp</result>
> </action>
>
> <action name="createproject"
class="net.translators.actions.CreateProjectAction" method="execute">
> <result name="success">/tests/message.jsp</result>
> <result name="input">/tests/createproject.jsp</result>
> </action>
> <action name="create-a-project"
class="net.translators.actions.CreateProjectAction" method="dummy">
> <result name ="success">/tests/createproject.jsp</result>
> </action>
> </package>
> </struts>
>
> // test.jsp has this line ("Point of entrance")
> <a href="<s:url action="tests/create-a-project"/>">Create a Project</a>
>
> // createproject.jsp has this form
> <s:form action="createproject">
> <s:textfield key="project.name"/>
> <s:textfield key="project.president.name"/>
> <s:submit label="Submiter"/>
> </s:form>
>
> // the resource file that is named after the Action class:
> project.name=Projects name
> project.users=Multiple Users
> project.president.name=Presidents name
> project.id=DB ID
>
> // The action class
> public class CreateProjectAction extends ActionSupport{
> private Project project =null;
> private String message = "NULL";
> public void setProject(Project pr){
> this.project = pr;
> }
>
> public String execute(){
>
> if (project !=null ){
> message = "Execute: "+project.toString();
> }
>
> return SUCCESS;
> }
>
> @SkipValidation
> public String dummy(){
> return SUCCESS;
> }
> public void validate(){
> if(project ==null || project.getName().length()==0){
> addFieldError( "project.name", "Name is required." );
> }
> message = "Validate";
> }
>
> public void setMessage(String message) {
> this.message = message;
> }
>
> public String getMessage() {
> return message;
> }
> }
>
>
>
>
Re: a field is not being initialized in my struts app
Posted by Maurizio Cucchiara <ma...@gmail.com>.
I'm not sure it will work, try to make an instance of te project field
instead of setting null value
Maurizio Cucchiara
Il giorno 24/feb/2011 15.18, "alex zaim" <ic...@yahoo.com> ha scritto:
> i have a Organization.java class that has a field named "name" and get and
set methods.
> Then i use a Project.java class that extends Organization.
Organization.java also has an User.java class that also has a "name" field.
I use the Project class as a bean that is populated after a form is being
submitted. The problem is that ( Project) Organization.name is not being
initialized when (Project) Organization.User.name IS being initialized. Can
anyone help me telling me what i've done wrong? I've been checking my field
and method names for a long tine now and i'm stuck, though everything seems
to be in good shape.
> My classes and various files follow:
> // Organization.java
> public class Organization {
> private int id;
> private User[] users;
> private String name="no name yet";
> private User president;
>
> public String toString(){
> return "ID:"+id+"; Users:<not yet>"+"; Name:"+name+";
President:"+president.getName();
> }
> public void setName(String name) {
> this.name = name;
> }
> public String getName() {
> return name;
> }
> public void setPresident(User president) {
> this.president = president;
> }
> public User getPresident() {
> return president;
> }
> }
>
> // Project.java
> public class Project extends Organization{
> public Project(){
> super();
> }
> }
>
> // struts.xml
> <?xml version="1.0" encoding="UTF-8"?>
> <!DOCTYPE struts PUBLIC
> "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
> "http://struts.apache.org/dtds/struts-2.0.dtd">
>
> <struts>
> <constant name="struts.devMode" value="true" />
> <package name="translators" extends="struts-default">
> <action name="test" class="net.translators.actions.TestAction"
method="execute">
> <result name="success">/test.jsp</result>
> </action>
>
> <action name="createproject"
class="net.translators.actions.CreateProjectAction" method="execute">
> <result name="success">/tests/message.jsp</result>
> <result name="input">/tests/createproject.jsp</result>
> </action>
> <action name="create-a-project"
class="net.translators.actions.CreateProjectAction" method="dummy">
> <result name ="success">/tests/createproject.jsp</result>
> </action>
> </package>
> </struts>
>
> // test.jsp has this line ("Point of entrance")
> <a href="<s:url action="tests/create-a-project"/>">Create a Project</a>
>
> // createproject.jsp has this form
> <s:form action="createproject">
> <s:textfield key="project.name"/>
> <s:textfield key="project.president.name"/>
> <s:submit label="Submiter"/>
> </s:form>
>
> // the resource file that is named after the Action class:
> project.name=Projects name
> project.users=Multiple Users
> project.president.name=Presidents name
> project.id=DB ID
>
> // The action class
> public class CreateProjectAction extends ActionSupport{
> private Project project =null;
> private String message = "NULL";
> public void setProject(Project pr){
> this.project = pr;
> }
>
> public String execute(){
>
> if (project !=null ){
> message = "Execute: "+project.toString();
> }
>
> return SUCCESS;
> }
>
> @SkipValidation
> public String dummy(){
> return SUCCESS;
> }
> public void validate(){
> if(project ==null || project.getName().length()==0){
> addFieldError( "project.name", "Name is required." );
> }
> message = "Validate";
> }
>
> public void setMessage(String message) {
> this.message = message;
> }
>
> public String getMessage() {
> return message;
> }
> }
>
>
>
>