Hi Volker,
just one more question. I would like to call a method in a
person-object to add an empty person in the children-list like this:
MethodBinding MBactionListenerAddPerson = app.createMethodBinding("#{"
+ var + ".addEmptyChild}", new Class[]{ActionEvent.class});
The problem is, that the person-object, on which this method gets
called is not the same as the person which is displayed in the view.
The two person-object have different object-ids. I assume that this is
because the object gets serialized and restored with a new object-id.
Do you have an idea for this problem? If this is the wrong way to add
an empty child, I would store the personId of the parent-person in the
backing bean and travel over the person-tree and add the child on the
right person.
Best regards,
Rudi
On 4/23/07, Rudi Steiner <[EMAIL PROTECTED]> wrote:
Hi Volker,
this is exactly what i wanted, and it works. Wonderful!
Thank you,
Rudi
On 4/18/07, Volker Weber <[EMAIL PROTECTED]> wrote:
> Hi Rudi,
>
> now i understand what you want.
> your _getPersonTable() is recursive invoked, this must be considered
> at component creation.
>
> are you realy sure you want this?
>
> if so you need at least the following:
>
> a managedBean with a getter to fetch the outher list of person,
> each person object has a same named getter to fetch the sublist.
>
> following is your code a bit modifyed, something like this may work.
>
>
> Regards,
> Volker
>
>
> <h:form>
> <h:dataTable binding="#{TableBean.personTable}" />
> </h:form>
>
> // The TableBean:
>
>
> public HtmlDataTable getPersonTable() {
>
> return _getPersonTable("TableBean.persons", "person");
> }
>
> private HtmlDataTable _getPersonTable(String value, String var) {
>
> FacesContext context = FacesContext.getCurrentInstance();
> Application app = context.getApplication();
>
> HtmlDataTable result = new HtmlDataTable();
> result.setVar(var);
> result.setValueBinding("value", app.createValueBinding("#{" + value +
"}"));
> result.setValueBinding("rendered",
> app.createValueBinding("#{!empty " + value + "}"));
>
> ValueBinding VBfirstName = app.createValueBinding("#{" + var +
> ".firstname}");
> ValueBinding VBsurName = app.createValueBinding("#{" + var + ".surname}");
> ValueBinding VBbirthDate = app.createValueBinding("#{" + var +
> ".birthdate}");
> ValueBinding VBtmpId = app.createValueBinding("#{" + var + ".tmpId}");
> ValueBinding VBchildren = app.createValueBinding("#{" + var +
".children}");
>
>
> ValueBinding VBpropTmpIdToDelete =
> app.createValueBinding("#{TableBean.tmpIdToDelete}");
>
>
> //MethodBinding MBdeleteListener =
> app.createMethodBinding("#{TableBean.deleteListener}", new
> Class[]{ActionEvent.class});
> //MethodBinding MBdeleteListener =
> app.createMethodBinding("#{" + var + ".delete}", new
> Class[]{ActionEvent.class});
> MethodBinding MBdeleteListener =
> app.createMethodBinding("#{TableBean.delete}", new
> Class[]{ActionEvent.class});
> MethodBinding MBaction =
> app.createMethodBinding("#{TableBean.action}", null);
>
> UIOutput headerFirstName = new UIOutput();
> headerFirstName.setValue("Vorname");
>
> UIOutput headerSurName = new UIOutput();
> headerSurName.setValue("Nachname");
>
> UIOutput headerBirthDate = new UIOutput();
> headerSurName.setValue("Geburtsdatum");
>
> UIOutput outputFirstname = new UIOutput();
> outputFirstname.setValueBinding("value", VBfirstName);
>
> UIOutput outputSurname = new UIOutput();
> outputSurname.setValueBinding("value", VBsurName);
>
> UIOutput outputBirthDate = new UIOutput();
> outputBirthDate.setValueBinding("value", VBbirthDate);
>
> UIColumn columnFirstName = new UIColumn();
> UIColumn columnSurName = new UIColumn();
> UIColumn columnBirthDate = new UIColumn();
> UIColumn columnDeleteButton = new UIColumn();
> UIColumn columnChildren = new UIColumn();
>
> columnFirstName.setHeader(headerFirstName);
> columnFirstName.getChildren().add(outputFirstname);
>
> columnSurName.setHeader(headerSurName);
> columnSurName.getChildren().add(outputSurname);
>
> columnBirthDate.setHeader(headerBirthDate);
> columnBirthDate.getChildren().add(outputBirthDate);
>
>
> //HtmlCommandButton deleteButton = new HtmlCommandButton();
> HtmlCommandButton deleteButton = (HtmlCommandButton)
> app.createComponent(HtmlCommandButton.COMPONENT_TYPE);
>
>
> deleteButton.setImage("images/img_delete.gif");
> deleteButton.setActionListener(MBdeleteListener);
>
> UpdateActionListener ual = new UpdateActionListener();
> ual.setPropertyBinding(VBpropTmpIdToDelete);
> ual.setValueBinding(VBtmpId);
> deleteButton.addActionListener(ual);
> deleteButton.setAction(MBaction);
>
> columnDeleteButton.getChildren().add(deleteButton);
>
> // enable only one recursion
> if (var.indexOf("_next") == -1) {
> columnChildren.getChildren().add(_getPersonTable(var +
> ".persons", var + "_next"));
> }
>
>
> result.getChildren().add(columnFirstName);
> result.getChildren().add(columnSurName);
> result.getChildren().add(columnBirthDate);
> result.getChildren().add(columnDeleteButton);
> result.getChildren().add(columnChildren);
>
> return result;
> }
>
