calls of getSize() in impl of AbstractListModel significantly decrease performance

asked 2023-11-10 21:21:37 +0800

KlimDM gravatar image KlimDM

updated 2023-11-10 21:22:02 +0800

Here is my code for getSize() method:

    public int getSize(param1, param2) {
        return <database query result>;

Parameters in method call are filters, so when executing code in viewModel with implementation of AbstractListModel, this method is being called many times every time executing a query to a db. Thus, with ~26000 rows in table, it takes about 10 min for a page to render.

Is there any way to overcome this problem (maybe make zk not to call getSize() so often)?

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answered 2023-11-14 17:57:28 +0800

hawk gravatar image hawk
3205 1 5
http://hawkphoenix.blogsp... ZK Team

updated 2023-11-14 18:00:42 +0800

When you do the query initially to get data from a database, you can store the size of the query result in your custom ListModel. Then you can just return the size without re-query every time.

public int getSize() {
    return totalSize;
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Asked: 2023-11-10 21:21:37 +0800

Seen: 6 times

Last updated: Nov 14

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