Setters and Getters

Setters and Getters

Bio Object provides default set and casted get methods already. For example:

Car c = new Car() ;
c.set(Car.PRODUCER, "Ford") ;
c.set(Car.YEAR_OF_PRODUCTION, 2019) ;
c.set(Car.FUEL_EFFICIENCY, 17.8) ;
c.set("undefined_tag", "Hello world") ;

c.getString(Car.PRODUCER) ;
c.getInt(Car.YEAR_OF_PRODUCTION) ;
c.getDouble(Car.FUEL_EFFICIENCY) ;
c.get("undefined_tag") ;

or you can still write standard setter/getters as following:

@BioObj
public class Car extends BioObject {
  @BioTag(type="Integer")
  public static final String YEAR_OF_PRODUCTION = "year_of_production" ;
  @BioTag(type="String")
  public static final String PRODUCER = "producer" ;
  @BioTag(type="Integer")
  public static final String ENGINE = "engine" ;
  @BioTag(type="Integer")
  public static final String CYLINDERS = "cylinders" ;
  @BioTag(type="Double")
  public static final String FUEL_EFFICIENCY = "fuel_efficiency" ;
  
  public void setProducer(String producer) {
    set(PRODUCER, producer) ;
  }

  public String getProducer() {
    return getString(Vehicle.PRODUCER) ;
  }

  public void setYearOfProduction(int yearOfProduction) {
    set(YEAR_OF_PRODUCTION, yearOfProduction) ;
  }
  
  public in getYearOfProduction() {
    return getInt(Vehicle.YEAR_OF_PRODUCTION) ;
  }
}

Removals

You can use remove() for removing tags from a Bio Object.

c.remove(Car.PRODUCER) ;
c.remove(Car.YEAR_OF_PRODUCTION) ;
c.remove("undefined_tag", "Hello world") ;

Or you can call clear() or empty()

c.clear() ;
c.empty().set(Car.PRODUCER, "Ford") ;

The only difference is empty() returns current Bio Object instance or this.