Inheritance: Lucene.Net.Search.Function.ValueSource
 public FloatDocValues(ReciprocalFloatFunction enclosingInstance, DocValues vals)
 {
     _enclosingInstance = enclosingInstance;
     this.vals = vals;
 }
 public FloatDocValues(ReciprocalFloatFunction enclosingInstance, DocValues vals)
 {
     _enclosingInstance = enclosingInstance;
     this.vals          = vals;
 }