Re: ScanQuery for List<...>

[Karun Chand]

Hey Andrew,

I think this is what you are looking for -

class Foo {
    int id;
}

class CustomIgniteBiPredicate implements IgniteBiPredicate<Integer, List<Foo>> {
    int searchKey;

    public CustomIgniteBiPredicate(int searchKey) {
        this.searchKey = searchKey;
    }

    public boolean apply(Integer key, List<Foo> list) {
        for (Foo item: list) {
            if (item.id == 2)
                return true;
        }
        return false;
    }
}

ScanQuery<Integer, List<Foo>> filter = new ScanQuery<Integer,
List<Foo>>(new CustomIgniteBiPredicate(9999));


ScanQuery is final in its declaration. So we can use a custom
IgniteBiPredicate

public final class ScanQuery<K, V> extends Query<Cache.Entry<K, V>> {


Regards,
RH
https://www.apacheignitetutorial.com

On Fri, Jan 25, 2019 at 8:36 AM AndrewV <q123en...@gmail.com> wrote:

> Hello.
>
> Is it possible to create a filter to find data inside typed List?
>
> *Example: *
>
> class Foo {
>     Integer id;
> }
>
> *Query: *
> ScanQuery<Integer, List&lt;Foo>> filter = new ScanQuery<>(
>      (IgniteBiPredicate<Integer, List&lt;Foo>>) (key, list) -> ...
> );
>
> So, is it possible to find inside List<Foo> just records where
> foo.getId().equals(some id)?
>
> Thanks.
>
>
>
>
>
> --
> Sent from: http://apache-ignite-users.70518.x6.nabble.com/
>