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From Sebastien <seb...@gmail.com>
Subject Re: Wicket-jquery-ui autocomplete running slow
Date Sat, 09 Mar 2019 01:16:53 GMT
Hi, in your browser devtool / network, that the timing says while calling
getchoice ?

On Sat, Mar 9, 2019, 06:59 Entropy <blmulholland@gmail.com> wrote:

> My project is using the wicket-jquery-ui AutoCompleteTextField.  We're
> returning a list that was prefetched and all we do in the getChoices is
> create a sublist.  the entire getChoices runs in milliseconds...usually
> 20-30, which I know because I put a rudimentary timer in it.  Yet, the
> autocomplete feels very sluggish as we're testing it.  So I put a timer in
> a
> filter that wraps our wicket calls and timed that.  The filter timer shows
> the entire event is running 2-4 seconds.
>
> 2-4 seconds per keystroke when the fattest part of the call, the data
> retrieval, is only taking 20-30ms seems like something is wrong.  The
> list's
> max size is being limited to 100 rows, but even when I pared it down to 10
> rows the improvement was only marginal.
>
> I pasted the code below, but that mostly just shows the getChoices() which,
> as I said above, is just filtering over a list in memory.  Any ideas?
>
>                 AutoCompleteTextField<String> fld = new
> AutoCompleteTextField<String>(fldId)
>                 {
>                         protected List<String> getChoices(String input) {
>                                 long start = System.currentTimeMillis();
>                                 if (minInputLen > 0) {
>                                         if (input == null ||
> input.trim().length() < minInputLen) {
>                                                 return
> Collections.EMPTY_LIST;  // empty list
>                                         }
>                                 }
>
>                                 List<String> curMatchingList =
> getFilterList(valList, input,
> maxFilterListSize);     // filters the in memory list valList by the input
>
>                                 if (curMatchingList == null) {
>                                         curMatchingList = new
> ArrayList<String>();
>                                 }
>
>                                 if (curMatchingList.size() == 0) {
>                                         if (noResultsVal != null) {
>
> curMatchingList.add(noResultsVal);      // no-results option
>                                         }
>                                 }
>                                 System.out.println("GETCHOICES: " +
> (System.currentTimeMillis() -
> start));
>                                 return curMatchingList; // data list
>                         }
>                 };
>
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