java - Sorting RealmResults by relevance -

i trying create search engine show results containing different tags. results must sorted relevance.

lets have following models:

public class article extends realmobject{     @primarykey     private string aid = uuid.randomuuid().tostring();     private realmlist<tags> tags; }  public class tags extends realmobject{     @primarykey     private string tid = uuid.randomuuid().tostring();     private string tag;     private realmlist<articletagsrelation> articlestag; }  public class articletagsrelation extends realmobject{     private string tid;     private string aid;     private long timesarticleselectedbytag;  } 

so relation between realmobjects are: article (many-to-many) tags (many-to-many) articletagsrelation

when users search tag, app should return articles fill search:

realm.where(article.class).equalto("tags.tag", usersearch).findall(). 

however, sort results relevance. relevance in example number of times users have selected article when searching related tag (articletagsrelation.timesarticleselectedbytag).

i have been struggling while find direct way accomplish no result. there direct way it? if not, sorting results 1 one unique solution?

thanks

realm 3.5.0+:

public class article extends realmobject{     @primarykey     private string aid = uuid.randomuuid().tostring();     private realmlist<tags> tags;      @linkingobjects("article")     private final realmresults<articletagsrelation> articleofrelation = null; }  public class tags extends realmobject{     @primarykey     private string tid = uuid.randomuuid().tostring();     private string tag;      @linkingobjects("tag")     private final realmresults<articletagsrelation> tagofrelation = null; }  public class articletagsrelation extends realmobject{     private tags tag;     private article article;     private long timesarticleselectedbytag;  }  realm.where(article.class)      .equalto("tags.tag", usersearch)      .findallsorted("articleofrelation.timesarticleselectedbytag", sort.descending);