Hi,
I need some help, I did not found examples or forums discussions about
these subjects.
I want to try to do a GWT application using MVP pattern. But I have some
difficulties.
In MVP, Presenter have to contain Display interface that specifie what the
View must implements and return.
*I have two problems when I apply this pattern:*
1 - The View must not have to manipulate Model. Or, how it is possible for
a collections of objects?
For example, I have model object Person as follows:
*public class Person{*
* private String firstname;*
* private String lastname;*
* private Integer age;*
*......
*
*}*
The View must display a collection of Person in Table (Flextable for
example) whithout manipulating Model. How it is possible ?
This is my presenter, and what I do now:
*public class PersonListPresenter extends
WidgetPresenter<PersonListPresenter .Display> {
*
* public interface Display extends WidgetDisplay{*
* public void setData(List<Person> data);*
* }*
* *
* protected void onBind() {*
* display.setData(data);*
* }*
*}*
This is my view, and what I do now:
*public class SongsView implements PersonListPresenter .Display {*
*......*
*public void setData(List<Person> data) {
*
* if(data!=null && data.size() > 0){*
* for (Person person: data) {*
* // I display all information about each Person in one row of
table *
* *
* }*
* }*
*}*
*.....*
*}*
*How can I do in MVP for this case ?*
2 - My second problem, is each row of this table must be clickable ? How I
can do ?
How can I get from display click event for each row ?
*public class PersonListPresenter extends
WidgetPresenter<PersonListPresenter .Display> {
*
* public interface Display extends WidgetDisplay{*
* public void setData(List<Person> data);*
* }*
* *
* protected void onBind() {*
* display.setData(data);*
* // I have to implement the same information for each row but
the source information is different.*
* // I have to fire an Event containing the Person information
that is clicked*
* display.get ????? *
*
*
* .addClickHandler(new ClickHandler() {*
* public void onClick(ClickEvent event) {*
*
*
* }*
* }*
* }*
*}*
Thanks in advance.
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