CODEWITHSUNDEEP
javavaadin7
Sirojiddin Komolov
Sirojiddin Komolov

Reputation: 791

Vaadin grid save edited item issue

I'm having some problems when I use Vaadin's Grid with BeanItemContainer. It displays a row OK, but when I try to save edited row it throws:

java.lang.IllegalArgumentException: Given item id (uz.sample.backend.entity.MyBean@4d949367) does not exist in the container
    at com.vaadin.ui.Grid$AbstractSelectionModel.checkItemIdExists(Grid.java:1367)
    at com.vaadin.ui.Grid$SingleSelectionModel.select(Grid.java:1457)
    at com.vaadin.ui.Grid$SingleSelectionModel$1.select(Grid.java:1442)

Then if I click again save button it throws:

com.vaadin.data.fieldgroup.FieldGroup$CommitException: Property "organConductedCourse" not bound to datasource.
    at com.vaadin.data.fieldgroup.FieldGroup.startTransactions(FieldGroup.java:557)
    at com.vaadin.data.fieldgroup.FieldGroup.commit(FieldGroup.java:476)
    at com.vaadin.ui.Grid.saveEditor(Grid.java:6817)
    at com.vaadin.ui.Grid$4.save(Grid.java:4782)

My code something like this:

Grid grid = new Grid();
grid.setSizeFull();
grid.setEditorEnabled(true);
BeanItemContainer<MyBean> container = new BeanItemContainer<>(MyBean.class);
container.addBean(new MyBean());
grid.setContainerDataSource(container);

I don't know where I'm doing wrong. Maybe you have any idea. Thanks for any advise!

Upvotes: 1

Views: 1028

Answers (1)

Sirojiddin Komolov
Sirojiddin Komolov

Reputation: 791

I found an answer after some searching again. I had to use BeanContainer instead of BeanItemContainer. It turns out that BeanItemContainer uses the hashCode of each Item to identify the item. So, MyBean's hashCode() is based on a field that is changed after edited. Then item was not found and "item id does not exist in the container" error was thrown.(as nobody answered to this question, I took my comment that is a solution as the answer, I hope it will help others)

Upvotes: 1

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