Just a wild guess: try to remove the type="" on your ui:with. Maybe the
generator is confused and thinks it has to instantiate a Person object
(what would normally be done with UiBinder), in which case it's no surprise
that the Person's properties are all 'null'.
BTW, to debug generated code, pass the "-gen someFolder" to the DevMode or
Compiler so that it's output to disk, and then add the "someFolder" folder
to the "sources" of your Eclipse launcher (or whatever the equivalent in
your IDE if not using Eclipse). You'll then be able to step into the
generated code.
On Wednesday, July 18, 2012 6:44:07 AM UTC+2, Vasu wrote:
>
> I tried to create a sample by using UiRenderer. But Showing null values as
> result. And as the UiRenderer code implementation is generated I am not
> even able to debug it. Following is the sample I tried.
>
> Person.java
>
> --------------------------------------------------------------------------------------------------------------------------
> public class Person {
>
> private String fname;
> private String lname;
> private String emailid;
> private int age;
>
> /**
> * @return the fname
> */
> public String getFname() {
> return fname;
> }
>
> /**
> * @param fname
> * the fname to set
> */
> public void setFname(String fname) {
> this.fname = fname;
> }
>
> /**
> * @return the lname
> */
> public String getLname() {
> return lname;
> }
>
> /**
> * @param lname
> * the lname to set
> */
> public void setLname(String lname) {
> this.lname = lname;
> }
>
> /**
> * @return the emailid
> */
> public String getEmailid() {
> return emailid;
> }
>
> /**
> * @param emailid
> * the emailid to set
> */
> public void setEmailid(String emailid) {
> this.emailid = emailid;
> }
>
> /**
> * @return the age
> */
> public int getAge() {
> return age;
> }
>
> /**
> * @param age
> * the age to set
> */
> public void setAge(int age) {
> this.age = age;
> }
>
> }
>
> --------------------------------------------------------------------------------------------------------------------------
>
>
> PersonCell.ui.xml
>
> --------------------------------------------------------------------------------------------------------------------------
> <ui:UiBinder xmlns:ui='urn:ui:com.google.gwt.uibinder'>
> <ui:with field='person' type='com.sample.renderer.Person' />
>
> <div>
> First Name :
> <span>
> <ui:text from='{person.getFname}' />
> </span>
> <p>
> Last Name :
> <span>
> <ui:text from='{person.getLname}' />
> </span>
> </p>
> <p>
> Email :
> <span>
> <ui:text from='{person.getEmailid}' />
> </span>
> </p>
> </div>
> </ui:UiBinder>
>
> --------------------------------------------------------------------------------------------------------------------------
>
> PersonCell.java
>
> --------------------------------------------------------------------------------------------------------------------------
> public class PersonCell extends AbstractCell<Person> {
>
> interface MyUiRenderer extends UiRenderer {
> void render(SafeHtmlBuilder sb, Person person);
> }
>
> private static MyUiRenderer renderer =
> GWT.create(MyUiRenderer.class);
>
> @Override
> public void render(com.google.gwt.cell.client.Cell.Context context,
> Person value, SafeHtmlBuilder sb) {
> renderer.render(sb, value);
> }
>
> }
>
> --------------------------------------------------------------------------------------------------------------------------
>
> onModuleLoad implementation
>
>
> --------------------------------------------------------------------------------------------------------------------------
> PersonCell cell = new PersonCell();
> CellList<Person> cellList = new CellList<Person>(cell);
> List<Person> list = new ArrayList<Person>();
> Person p = new Person();
> p.setFname("Pranoti");
> p.setLname("Patil");
> p.setEmailid("[email protected]");
> p.setAge(30);
> list.add(p);
>
> p = new Person();
> p.setFname("Pandurang");
> p.setLname("Patil");
> p.setEmailid("[email protected]");
> p.setAge(30);
> list.add(p);
>
> p = new Person();
> p.setFname("Ravi");
> p.setLname("Kumar");
> p.setEmailid("[email protected]");
> p.setAge(30);
> list.add(p);
>
> cellList.setRowCount(list.size(), true);
> cellList.setRowData(list);
>
> RootPanel.get().add(cellList);
>
>
> --------------------------------------------------------------------------------------------------------------------------
>
>
> output:
>
>
> --------------------------------------------------------------------------------------------------------------------------
>
> First Name : null
>
> Last Name : null
>
> Email : null
> First Name : null
>
> Last Name : null
>
> Email : null
> First Name : null
>
> Last Name : null
>
> Email : null
>
> --------------------------------------------------------------------------------------------------------------------------
>
>
> Any help would be much appriciated. I am not getting if I am
> missing something. Even I tried the sample given on GWT documenntation
> located at
> refer<https://developers.google.com/web-toolkit/doc/latest/DevGuideUiBinder#Rendering_HTML_for_Cells>,
>
> getting similar results.
>
> When I tried to debug above code by applying break points
> inside redner() method of PersonCell, to check if I get required object
> over there, while it renders every cell. And I am able to see proper object
> is getting passed over there. But When apply break point in any of the
> getter of Person class, and try to see what value person object has. Then
> it is surprising to see it has all null values. Need to understand if its
> bug in GWT library or I am missing anything while using it.
>
>
> Thanks,
> -Pandurang Patil.
>
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