In appfuse example, UserForm instantiate static abstract inner class ?

2007-12-19 Thread bryan0101 

I have googled this question in many forms without much success. The problem
is I'm trying to understand the appfuse wicket example. And the only thing
I'm not getting is the use of private static abstract class inner member
class.

code
public class UserForm extends BasePage {
@SpringBean
private UserManager userManager;
private final Page backPage;

public UserForm(Page backPage) {
this(backPage, new User());
}

public UserForm(final Page backPage, User user) {
this.backPage = backPage;

// Create and add the form
EditForm form = new EditForm(user-form, user) {
protected void onSave(User user) {
onSaveUser(user);
}

protected void onCancel() {
onCancelEditing();
}

protected void onDelete(User user) {
onDeleteUser(user);
}
};
add(form);
}
   ...
   ...
   private void onCancelEditing() {
setResponsePage(backPage);
}
private static abstract class EditForm extends Form {
 private void add(FormComponent fc, IModel label) {
 .
/code

Now I understand inner class, static etc etc... But what is the use of
abstract in this instant, (all the while instantiating it in enclosing
class's constructor. Would it work with just private static class? 
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Re: In appfuse example, UserForm instantiate static abstract inner class ?

2007-12-19 Thread Gwyn Evans 
The point is that in the constructor, you're actually instantiating an
anonymous class that *extends* EditForm.  It won't work without the
abstract, because the onXXX methods are abstract and need
implementing.

/Gwyn

On 19/12/2007, bryan0101 [EMAIL PROTECTED] wrote:

 I have googled this question in many forms without much success. The problem
 is I'm trying to understand the appfuse wicket example. And the only thing
 I'm not getting is the use of private static abstract class inner member
 class.

 code
 public class UserForm extends BasePage {
 @SpringBean
 private UserManager userManager;
 private final Page backPage;

 public UserForm(Page backPage) {
 this(backPage, new User());
 }

 public UserForm(final Page backPage, User user) {
 this.backPage = backPage;

 // Create and add the form
 EditForm form = new EditForm(user-form, user) {
 protected void onSave(User user) {
 onSaveUser(user);
 }

 protected void onCancel() {
 onCancelEditing();
 }

 protected void onDelete(User user) {
 onDeleteUser(user);
 }
 };
 add(form);
 }
...
...
private void onCancelEditing() {
 setResponsePage(backPage);
 }
 private static abstract class EditForm extends Form {
  private void add(FormComponent fc, IModel label) {
  .
 /code

 Now I understand inner class, static etc etc... But what is the use of
 abstract in this instant, (all the while instantiating it in enclosing
 class's constructor. Would it work with just private static class?
 --
 View this message in context: 
 http://www.nabble.com/In-appfuse-example%2C-UserForm-instantiate-static-abstract-inner-class---tp14425471p14425471.html
 Sent from the Wicket - User mailing list archive at Nabble.com.

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Re: In appfuse example, UserForm instantiate static abstract inner class ?

2007-12-19 Thread bryan0101 

Absolutely... thank you.



Gwyn wrote:
 
 The point is that in the constructor, you're actually instantiating an
 anonymous class that *extends* EditForm.  It won't work without the
 abstract, because the onXXX methods are abstract and need
 implementing.
 
 /Gwyn
 
 On 19/12/2007, bryan0101 [EMAIL PROTECTED] wrote:

 I have googled this question in many forms without much success. The
 problem
 is I'm trying to understand the appfuse wicket example. And the only
 thing
 I'm not getting is the use of private static abstract class inner member
 class.

 code
 public class UserForm extends BasePage {
 @SpringBean
 private UserManager userManager;
 private final Page backPage;

 public UserForm(Page backPage) {
 this(backPage, new User());
 }

 public UserForm(final Page backPage, User user) {
 this.backPage = backPage;

 // Create and add the form
 EditForm form = new EditForm(user-form, user) {
 protected void onSave(User user) {
 onSaveUser(user);
 }

 protected void onCancel() {
 onCancelEditing();
 }

 protected void onDelete(User user) {
 onDeleteUser(user);
 }
 };
 add(form);
 }
...
...
private void onCancelEditing() {
 setResponsePage(backPage);
 }
 private static abstract class EditForm extends Form {
  private void add(FormComponent fc, IModel label) {
  .
 /code

 Now I understand inner class, static etc etc... But what is the use of
 abstract in this instant, (all the while instantiating it in enclosing
 class's constructor. Would it work with just private static class?
 --
 View this message in context:
 http://www.nabble.com/In-appfuse-example%2C-UserForm-instantiate-static-abstract-inner-class---tp14425471p14425471.html
 Sent from the Wicket - User mailing list archive at Nabble.com.
 
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 To unsubscribe, e-mail: [EMAIL PROTECTED]
 For additional commands, e-mail: [EMAIL PROTECTED]
 
 
 

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