I've recently noticed that the autocompleter runs the getValues method
twice for every search string. Therefore you can improve performance by
almost 50% by adding some simple caching, especially if your search is
driven externally (ie DB).
For example:
public class MyAutocompleteModel implements IAutocompleteModel
{
private String lastFilter;
private List<MyClass> lastResult;
...
public List<MyClass> getValues(String filter)
{
if (EqualsUtils.equals(filter, lastFilter))
return lastResult;
List<MyClass> result = ......; // perform search
lastFilter = filter;
lastResult = result;
return result;
}
...
}
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