Re: passing a session to a wizard
Thanks Mike you were right, I managed to figure it out, I had not initalised
the object within a seession before bring it into the wizard.
Thanks
Stephen
--- On Mon, 20/7/09, Michael Sparer michael.spa...@gmx.at wrote:
From: Michael Sparer michael.spa...@gmx.at
Subject: Re: passing a session to a wizard
To: users@wicket.apache.org
Date: Monday, 20 July, 2009, 6:59 PM
sounds like a detached object. the interesting part would be where you got
the object from. if you're using OpensessionInViewFilter (and therefore a
session is during the whole request), it's likely that the object stays in
the session between requests - you should use LoadableDetachableModels then
...
Steve Olara wrote:
Hello All,
I have been trying to design functionality of a webapp using wizard.
I need to pass a object (Questionnaire) to the wizard page, the object
contains a set of questions.
on passing the object, when I try to pick the set of questions using
q.getqn() where q is the object, a null set is returned and I get a error
saying: LazyInitializationException:19 - failed to lazily initialize a
collection of role: questionnaire.model.Questionnaire.qn, no session or
session was closed
I have searched and found lots of articles about this error but I guess my
programming is still imature cause I seem not to get this to work yet.
Below is my code is there a way of passing the previous session to this
class.
public final class AnswerWizard extends Wizard {
public AnswerWizard(String id, Questionnaire q) {
super(id);
// create a model with a couple of custom panels
// still not that spectacular, but at least it
// will give you a hint of how nice it is to
// be able to work with custom panels
WizardModel model = new WizardModel();
Set questions = q.getQn();
Iterator iter = questions.iterator();
System.out.println(Testing55: );
for (;iter.hasNext();) {
Question qn = (Question) iter.next();
if (qn instanceof QuestionShortAns) {
model.add(new StepQSA((QuestionShortAns) qn));
} else if (qn instanceof QuestionSingleSelect) {
model.add(new StepQSS((QuestionSingleSelect) qn));
} else if (qn instanceof QuestionMatch) {
model.add(new StepQm((QuestionMatch) qn));
}
}
// initialize the wizard
init(model);
}
private static final class StepQSS extends WizardStep {
/**
* Construct.
*/
public StepQSS(QuestionSingleSelect qn) {
super(One, The first step);
}
}
private static final class StepQSA extends WizardStep {
/**
* Construct.
*/
public StepQSA(QuestionShortAns qn) {
super(Two, The second step);
}
}
private static final class StepQm extends WizardStep {
/**
* Construct.
*/
public StepQm(QuestionMatch qn) {
super(Three, The third step);
}
}
public void onCancel() {
//setResponsePage(Index.class);
}
/**
* @see org.apache.wicket.extensions.wizard.Wizard#onFinish()
*/
public void onFinish() {
// setResponsePage(Index.class);
}
}
Any Help will be highly appreciated
-
Michael Sparer
http://techblog.molindo.at
--
View this message in context:
http://www.nabble.com/Re%3A-passing-a-session-to-a-wizard-tp24569201p24572534.html
Sent from the Wicket - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
Re: passing a session to a wizard
Hello All,
I have been trying to design functionality of a webapp using wizard.
I need to pass a object (Questionnaire) to the wizard page, the object contains
a set of questions.
on passing the object, when I try to pick the set of questions using q.getqn()
where q is the object, a null set is returned and I get a error saying:
LazyInitializationException:19 - failed to lazily initialize a collection of
role: questionnaire.model.Questionnaire.qn, no session or session was closed
I have searched and found lots of articles about this error but I guess my
programming is still imature cause I seem not to get this to work yet.
Below is my code is there a way of passing the previous session to this class.
public final class AnswerWizard extends Wizard {
public AnswerWizard(String id, Questionnaire q) {
super(id);
// create a model with a couple of custom panels
// still not that spectacular, but at least it
// will give you a hint of how nice it is to
// be able to work with custom panels
WizardModel model = new WizardModel();
Set questions = q.getQn();
Iterator iter = questions.iterator();
System.out.println(Testing55: );
for (;iter.hasNext();) {
Question qn = (Question) iter.next();
if (qn instanceof QuestionShortAns) {
model.add(new StepQSA((QuestionShortAns) qn));
} else if (qn instanceof QuestionSingleSelect) {
model.add(new StepQSS((QuestionSingleSelect) qn));
} else if (qn instanceof QuestionMatch) {
model.add(new StepQm((QuestionMatch) qn));
}
}
// initialize the wizard
init(model);
}
private static final class StepQSS extends WizardStep {
/**
* Construct.
*/
public StepQSS(QuestionSingleSelect qn) {
super(One, The first step);
}
}
private static final class StepQSA extends WizardStep {
/**
* Construct.
*/
public StepQSA(QuestionShortAns qn) {
super(Two, The second step);
}
}
private static final class StepQm extends WizardStep {
/**
* Construct.
*/
public StepQm(QuestionMatch qn) {
super(Three, The third step);
}
}
public void onCancel() {
//setResponsePage(Index.class);
}
/**
* @see org.apache.wicket.extensions.wizard.Wizard#onFinish()
*/
public void onFinish() {
// setResponsePage(Index.class);
}
}
Any Help will be highly appreciated
Re: passing a session to a wizard
sounds like a detached object. the interesting part would be where you got
the object from. if you're using OpensessionInViewFilter (and therefore a
session is during the whole request), it's likely that the object stays in
the session between requests - you should use LoadableDetachableModels then
...
Steve Olara wrote:
Hello All,
I have been trying to design functionality of a webapp using wizard.
I need to pass a object (Questionnaire) to the wizard page, the object
contains a set of questions.
on passing the object, when I try to pick the set of questions using
q.getqn() where q is the object, a null set is returned and I get a error
saying: LazyInitializationException:19 - failed to lazily initialize a
collection of role: questionnaire.model.Questionnaire.qn, no session or
session was closed
I have searched and found lots of articles about this error but I guess my
programming is still imature cause I seem not to get this to work yet.
Below is my code is there a way of passing the previous session to this
class.
public final class AnswerWizard extends Wizard {
public AnswerWizard(String id, Questionnaire q) {
super(id);
// create a model with a couple of custom panels
// still not that spectacular, but at least it
// will give you a hint of how nice it is to
// be able to work with custom panels
WizardModel model = new WizardModel();
Set questions = q.getQn();
Iterator iter = questions.iterator();
System.out.println(Testing55: );
for (;iter.hasNext();) {
Question qn = (Question) iter.next();
if (qn instanceof QuestionShortAns) {
model.add(new StepQSA((QuestionShortAns) qn));
} else if (qn instanceof QuestionSingleSelect) {
model.add(new StepQSS((QuestionSingleSelect) qn));
} else if (qn instanceof QuestionMatch) {
model.add(new StepQm((QuestionMatch) qn));
}
}
// initialize the wizard
init(model);
}
private static final class StepQSS extends WizardStep {
/**
* Construct.
*/
public StepQSS(QuestionSingleSelect qn) {
super(One, The first step);
}
}
private static final class StepQSA extends WizardStep {
/**
* Construct.
*/
public StepQSA(QuestionShortAns qn) {
super(Two, The second step);
}
}
private static final class StepQm extends WizardStep {
/**
* Construct.
*/
public StepQm(QuestionMatch qn) {
super(Three, The third step);
}
}
public void onCancel() {
//setResponsePage(Index.class);
}
/**
* @see org.apache.wicket.extensions.wizard.Wizard#onFinish()
*/
public void onFinish() {
// setResponsePage(Index.class);
}
}
Any Help will be highly appreciated
-
Michael Sparer
http://techblog.molindo.at
--
View this message in context:
http://www.nabble.com/Re%3A-passing-a-session-to-a-wizard-tp24569201p24572534.html
Sent from the Wicket - User mailing list archive at Nabble.com.
-
To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
For additional commands, e-mail: users-h...@wicket.apache.org
