FlyWeight

CellPropertyFactory.java

package FlyWeight;

import java.util.HashMap;
import java.util.Map;
import java.util.Objects;

public class CellPropertyFactory {
    Map<Integer, CellProperty> map;
    CellPropertyFactory(){
        map = new HashMap<>();
    }
    CellProperty getDefaultCellProperty(String fontFamily,int fontSize,boolean isBold){
        int hash = Objects.hash(fontFamily,fontSize,isBold);
        if(map.containsKey(hash)){
            System.out.println("Reusing cellProperty");
            return map.get(hash);
        }else{
            System.out.println("New cellProperty");
            CellProperty prop = new CellProperty(fontFamily,12,false);
            map.put(hash,prop);
            return prop;
        }
    }
}