Grid / TreeGrind get and manipulate data best way

General
1

Hi,

i have a Treegrid like

 private TreeGrid<Item> treeGrid = new TreeGrid<>();
    private TreeData<Item> data = new TreeData<>();
    TreeDataProvider<Item> dataProvider = new TreeDataProvider<>(data);

once the data are loaded and displayed i have some inputfield, slider etc wich has influence to the shown data. For example when i slide a slider, the prices in the grid needs to be changed.

Which would be the best way to change the data in the best way? Currently i am iterating over the items in the grid and setting them the new value. Is that the correct way or do i need to manipulate the dataprovider data?

2

Without any further details regarding your application architecture, its usage / scope or sample code, I would say, yes, it sounds like the correct way, when you want to work with in memory data. The in memory data provider uses your objects as a base, so manipulating these and then calling a refreshItem/refreshAll on the data provider should work.

Disadvantage of that approach is of course the scalability: using an in memory data provider has always the downside, that it may hit your server, when the data or the parallel users grow.

3

ok thanks. what would will be your suggestion? Saving the data in a database, manipulating it and refresh it?

We talk about a product table with less then 50 “products” and 5 columns. So not that huge thing

4

With that kind of dataset, in-memory is easily the most optimal solution.

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