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Refreshing a data provider won't update items when the item instance is not the same

See original GitHub issue

When refreshing a Grid data provider, if the item instances change (e.g. when fetched from a database), rows are not updated if a column value has changed.

Demo: GridRefreshAll.java

Issue Analytics

State:
Created 5 years ago
Reactions:2
Comments:9 (8 by maintainers)

Top GitHub Comments

3reactions

Legiothcommented, Nov 21, 2018

As a workaround, you can do grid.setDataProvider(grid.getDataProvider());.

3reactions

heruancommented, Nov 7, 2018

I think it’s a bug then, since when overriding the DataProvider::getId it shouldn’t rely on equals/hashCode but on the ID. Certain frameworks (e.g. Spring Data with projections, or Blaze Persistence with entity views) might provide DTO instances created dynamically and you can’t really override their equals/hashCode methods.

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