android - Realm query for all entities that have a field with a certain value -

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sorry if title vague, didn't know how else describe it.

i making android application in users can browse list of events @ festival, click on them more detailed overview of event , it's performance times.

here's java model:

public class festivalentity extends realmobject {     @primarykey     public string code;     public string description;     public string title;     public int minimumage;     public string squareimage;     public string landscapeimage;     public realmlist<performanceentity> performances;     public date firstperformance; }  public class performanceentity extends realmobject {     public date start;     public date end;     public double price;     public boolean favorite; }

my question is: how make query finds festivalentitys have performanceentity favorite? can't select individual performanceentity because there no primary key performanceentity table.

what looking similar (invalid) query:

//should return list of festivalentity's contain @ least 1 performance favorite realmresults<festivalentity> results = realm.where(festivalentity.class).any("performances.favorite", true).findall();

actually, think use-case following query :

realmresults<festivalentity> results = realm.where(festivalentity.class)      .equalto("performances.favorite", true)      .findall();

please check if i'm right though, link queries confuse me.


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