public override HashSet <Document> GetResults(IInvertedIndex index)
{
var results = new HashSet <Document>();
if (Tokens.Any())
{
results.UnionWith(index.GetDocumentsOfToken(Tokens[0]));
Tokens.ForEach(t => results.IntersectWith(index.GetDocumentsOfToken(t)));
}
return(results);
}
public override HashSet <Document> GetResults(IInvertedIndex index)
{
var results = new HashSet <Document>();
Tokens.ForEach(t => results.UnionWith(index.GetDocumentsOfToken(t)));
return(results);
}
public override HashSet <Document> GetResults(IInvertedIndex index)
{
return(new HashSet <Document>(Tokens.SelectMany(token => index.GetDocumentsOfToken(token))));
}