public Query whereContains(Contact.Field field,Object value){
  addNewConstraint(field,Where.contains(field.getColumn(),value));
  return this;
}

public Query whereContains ( Contact . Field field , Object value ) { addNewConstraint ( field , Where . contains ( field . getColumn ( ) , value ) ) ; return this ; }
add a constraint to the query for finding string values that contain the provided string .
