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Posted to users@isis.apache.org by Shan Wijesinghe <sh...@gmail.com> on 2016/03/02 08:03:29 UTC
Use of Mixins
Hi all,
I have a JAXB annotated view model. I want to change "title" and
"iconName" using a Mixin to my original java class without adding title
and iconName methods to original class. How can I do this. Please make
suggestions. Thanks in advance.
--regards
Dilshan.
Re: Use of Mixins
Posted by Shan Wijesinghe <sh...@gmail.com>.
Hi Dan,
I initially thought I need to apply the titleUiEvent to the
Mixin but when I changed it to the original view model it worked. I haven't
tried using the custom facet factory still. I will follow the documentation
on that. Thank you.
Best Regards,
Dilshan.
On Sun, Mar 20, 2016 at 8:09 PM, Dan Haywood <da...@haywood-associates.co.uk>
wrote:
> Hi Dilshan,
>
> You don't quite have this right.
>
> It's still necessary to annotate the view model with @DomainObjectLayout,
> and optionally to specify a titleUiEvent, eg [1]
>
> The event subscriber then checks for the event on the JAXB view model, eg
> [2]
>
> If you didn't want to annotate the JAXB view model with
> @DomainObjectLayout, then you could instead write a custom facet factory
> that looked for the JAXB @XmlRootElement and did the same job; details in
> [3]. I've raised ISIS-1337 for this idea [4]
>
> HTH
> Dan
>
>
> [1]
>
> https://github.com/isisaddons/isis-app-todoapp/blob/master/dom/src/main/java/todoapp/app/viewmodels/todoitem/v1/ToDoItemV1_1.java#L43
> [2]
>
> https://github.com/isisaddons/isis-app-todoapp/blob/master/app/src/main/java/todoapp/app/services/titlesubscriber/UiEventSubscriber.java#L41
> [3] http://isis.apache.org/guides/ugbtb.html#_modifying_the_prog_model
> [4] https://issues.apache.org/jira/browse/ISIS-1337
>
>
>
> On 2 March 2016 at 09:55, Shan Wijesinghe <sh...@gmail.com>
> wrote:
>
> > * Please ignore the mismatch between the Myclass_viewmodel and it's
> > constructor named as TrsItem_ViewModelTrs
> >
> > On Wed, Mar 2, 2016 at 3:18 PM, Shan Wijesinghe <
> shandwijesinghe@gmail.com
> > >
> > wrote:
> >
> > > Thank you for the information Dan.
> > >
> > > I did the following. But it seems title is not set still. What is the
> > > problem.
> > >
> > > // Mixin
> > >
> > > @DomainObject(nature = Nature.MIXIN)
> > > @DomainObjectLayout(titleUiEvent =
> Myclass_viewmodel.TitleUiEvent.class)
> > > public class Myclass_viewmodel {
> > >
> > > private final Myclass myclass;
> > >
> > > public TrsItem_ViewModelTrs(Myclass myclass) {
> > >
> > > this.myclass = myclass ;
> > > }
> > > ...
> > >
> > >
> > >
> > > public static class TitleUiEvent extends
> > >
> org.apache.isis.applib.services.eventbus.TitleUiEvent<Myclass_viewmodel>
> > {
> > >
> > > protected String title ;
> > > public String getTitle() {
> > > return title ;
> > > }
> > >
> > > public void setTitle(String title) {
> > > this.title = title ;
> > > }
> > > public TitleUiEvent() {
> > >
> > > }
> > > }
> > >
> > > }
> > >
> > >
> > > // Subscriber
> > >
> > >
> > > @DomainService(nature=NatureOfService.DOMAIN)
> > > public class MyclassTitle extends AbstractSubscriber{
> > > @com.google.common.eventbus.Subscribe
> > > public void on(TitleUiEvent ev) {
> > > if(ev.getSource() instanceof Myclass_viewmodel) {
> > >
> > > ev.setTitle("MY TITLE");
> > >
> > > }
> > > }
> > >
> > > }
> > >
> > >
> > > On Wed, Mar 2, 2016 at 12:53 PM, Dan Haywood <
> > dan@haywood-associates.co.uk
> > > > wrote:
> > >
> > >> The easiest approach is probably to use the UiEvent classes defined in
> > >> @DomainObjectLayout, and then set up a subscriber of these events.
> > >>
> > >> HTH, Dan
> > >> On 2 Mar 2016 07:03, "Shan Wijesinghe" <sh...@gmail.com>
> > wrote:
> > >>
> > >> > Hi all,
> > >> >
> > >> > I have a JAXB annotated view model. I want to change "title" and
> > >> > "iconName" using a Mixin to my original java class without adding
> > title
> > >> > and iconName methods to original class. How can I do this. Please
> make
> > >> > suggestions. Thanks in advance.
> > >> >
> > >> > --regards
> > >> > Dilshan.
> > >> >
> > >>
> > >
> > >
> >
>
Re: Use of Mixins
Posted by Dan Haywood <da...@haywood-associates.co.uk>.
Hi Dilshan,
You don't quite have this right.
It's still necessary to annotate the view model with @DomainObjectLayout,
and optionally to specify a titleUiEvent, eg [1]
The event subscriber then checks for the event on the JAXB view model, eg
[2]
If you didn't want to annotate the JAXB view model with
@DomainObjectLayout, then you could instead write a custom facet factory
that looked for the JAXB @XmlRootElement and did the same job; details in
[3]. I've raised ISIS-1337 for this idea [4]
HTH
Dan
[1]
https://github.com/isisaddons/isis-app-todoapp/blob/master/dom/src/main/java/todoapp/app/viewmodels/todoitem/v1/ToDoItemV1_1.java#L43
[2]
https://github.com/isisaddons/isis-app-todoapp/blob/master/app/src/main/java/todoapp/app/services/titlesubscriber/UiEventSubscriber.java#L41
[3] http://isis.apache.org/guides/ugbtb.html#_modifying_the_prog_model
[4] https://issues.apache.org/jira/browse/ISIS-1337
On 2 March 2016 at 09:55, Shan Wijesinghe <sh...@gmail.com> wrote:
> * Please ignore the mismatch between the Myclass_viewmodel and it's
> constructor named as TrsItem_ViewModelTrs
>
> On Wed, Mar 2, 2016 at 3:18 PM, Shan Wijesinghe <shandwijesinghe@gmail.com
> >
> wrote:
>
> > Thank you for the information Dan.
> >
> > I did the following. But it seems title is not set still. What is the
> > problem.
> >
> > // Mixin
> >
> > @DomainObject(nature = Nature.MIXIN)
> > @DomainObjectLayout(titleUiEvent = Myclass_viewmodel.TitleUiEvent.class)
> > public class Myclass_viewmodel {
> >
> > private final Myclass myclass;
> >
> > public TrsItem_ViewModelTrs(Myclass myclass) {
> >
> > this.myclass = myclass ;
> > }
> > ...
> >
> >
> >
> > public static class TitleUiEvent extends
> > org.apache.isis.applib.services.eventbus.TitleUiEvent<Myclass_viewmodel>
> {
> >
> > protected String title ;
> > public String getTitle() {
> > return title ;
> > }
> >
> > public void setTitle(String title) {
> > this.title = title ;
> > }
> > public TitleUiEvent() {
> >
> > }
> > }
> >
> > }
> >
> >
> > // Subscriber
> >
> >
> > @DomainService(nature=NatureOfService.DOMAIN)
> > public class MyclassTitle extends AbstractSubscriber{
> > @com.google.common.eventbus.Subscribe
> > public void on(TitleUiEvent ev) {
> > if(ev.getSource() instanceof Myclass_viewmodel) {
> >
> > ev.setTitle("MY TITLE");
> >
> > }
> > }
> >
> > }
> >
> >
> > On Wed, Mar 2, 2016 at 12:53 PM, Dan Haywood <
> dan@haywood-associates.co.uk
> > > wrote:
> >
> >> The easiest approach is probably to use the UiEvent classes defined in
> >> @DomainObjectLayout, and then set up a subscriber of these events.
> >>
> >> HTH, Dan
> >> On 2 Mar 2016 07:03, "Shan Wijesinghe" <sh...@gmail.com>
> wrote:
> >>
> >> > Hi all,
> >> >
> >> > I have a JAXB annotated view model. I want to change "title" and
> >> > "iconName" using a Mixin to my original java class without adding
> title
> >> > and iconName methods to original class. How can I do this. Please make
> >> > suggestions. Thanks in advance.
> >> >
> >> > --regards
> >> > Dilshan.
> >> >
> >>
> >
> >
>
Re: Use of Mixins
Posted by Shan Wijesinghe <sh...@gmail.com>.
* Please ignore the mismatch between the Myclass_viewmodel and it's
constructor named as TrsItem_ViewModelTrs
On Wed, Mar 2, 2016 at 3:18 PM, Shan Wijesinghe <sh...@gmail.com>
wrote:
> Thank you for the information Dan.
>
> I did the following. But it seems title is not set still. What is the
> problem.
>
> // Mixin
>
> @DomainObject(nature = Nature.MIXIN)
> @DomainObjectLayout(titleUiEvent = Myclass_viewmodel.TitleUiEvent.class)
> public class Myclass_viewmodel {
>
> private final Myclass myclass;
>
> public TrsItem_ViewModelTrs(Myclass myclass) {
>
> this.myclass = myclass ;
> }
> ...
>
>
>
> public static class TitleUiEvent extends
> org.apache.isis.applib.services.eventbus.TitleUiEvent<Myclass_viewmodel> {
>
> protected String title ;
> public String getTitle() {
> return title ;
> }
>
> public void setTitle(String title) {
> this.title = title ;
> }
> public TitleUiEvent() {
>
> }
> }
>
> }
>
>
> // Subscriber
>
>
> @DomainService(nature=NatureOfService.DOMAIN)
> public class MyclassTitle extends AbstractSubscriber{
> @com.google.common.eventbus.Subscribe
> public void on(TitleUiEvent ev) {
> if(ev.getSource() instanceof Myclass_viewmodel) {
>
> ev.setTitle("MY TITLE");
>
> }
> }
>
> }
>
>
> On Wed, Mar 2, 2016 at 12:53 PM, Dan Haywood <dan@haywood-associates.co.uk
> > wrote:
>
>> The easiest approach is probably to use the UiEvent classes defined in
>> @DomainObjectLayout, and then set up a subscriber of these events.
>>
>> HTH, Dan
>> On 2 Mar 2016 07:03, "Shan Wijesinghe" <sh...@gmail.com> wrote:
>>
>> > Hi all,
>> >
>> > I have a JAXB annotated view model. I want to change "title" and
>> > "iconName" using a Mixin to my original java class without adding title
>> > and iconName methods to original class. How can I do this. Please make
>> > suggestions. Thanks in advance.
>> >
>> > --regards
>> > Dilshan.
>> >
>>
>
>
Re: Use of Mixins
Posted by Shan Wijesinghe <sh...@gmail.com>.
Thank you for the information Dan.
I did the following. But it seems title is not set still. What is the
problem.
// Mixin
@DomainObject(nature = Nature.MIXIN)
@DomainObjectLayout(titleUiEvent = Myclass_viewmodel.TitleUiEvent.class)
public class Myclass_viewmodel {
private final Myclass myclass;
public TrsItem_ViewModelTrs(Myclass myclass) {
this.myclass = myclass ;
}
...
public static class TitleUiEvent extends
org.apache.isis.applib.services.eventbus.TitleUiEvent<Myclass_viewmodel> {
protected String title ;
public String getTitle() {
return title ;
}
public void setTitle(String title) {
this.title = title ;
}
public TitleUiEvent() {
}
}
}
// Subscriber
@DomainService(nature=NatureOfService.DOMAIN)
public class MyclassTitle extends AbstractSubscriber{
@com.google.common.eventbus.Subscribe
public void on(TitleUiEvent ev) {
if(ev.getSource() instanceof Myclass_viewmodel) {
ev.setTitle("MY TITLE");
}
}
}
On Wed, Mar 2, 2016 at 12:53 PM, Dan Haywood <da...@haywood-associates.co.uk>
wrote:
> The easiest approach is probably to use the UiEvent classes defined in
> @DomainObjectLayout, and then set up a subscriber of these events.
>
> HTH, Dan
> On 2 Mar 2016 07:03, "Shan Wijesinghe" <sh...@gmail.com> wrote:
>
> > Hi all,
> >
> > I have a JAXB annotated view model. I want to change "title" and
> > "iconName" using a Mixin to my original java class without adding title
> > and iconName methods to original class. How can I do this. Please make
> > suggestions. Thanks in advance.
> >
> > --regards
> > Dilshan.
> >
>
Re: Use of Mixins
Posted by Dan Haywood <da...@haywood-associates.co.uk>.
The easiest approach is probably to use the UiEvent classes defined in
@DomainObjectLayout, and then set up a subscriber of these events.
HTH, Dan
On 2 Mar 2016 07:03, "Shan Wijesinghe" <sh...@gmail.com> wrote:
> Hi all,
>
> I have a JAXB annotated view model. I want to change "title" and
> "iconName" using a Mixin to my original java class without adding title
> and iconName methods to original class. How can I do this. Please make
> suggestions. Thanks in advance.
>
> --regards
> Dilshan.
>