Barrel_Helper.java

package ;


  // import configuration classes

import config.*;


public class Barrel_Helper {

  static public Barrel get(config.Configuration db, config.ConfigObject obj) {
    if(obj == null) { return null; }
    Barrel_Impl o = (Barrel_Impl)db.get("Barrel", obj);
    if(o == null) {
      o = new Barrel_Impl(db, obj);
      db.add("Barrel", obj.UID(), o);
    }
    return o;
  }


  static public Barrel get(config.Configuration db, String id) {
      // check the object is already in cache
    Barrel o = (Barrel)db.get("Barrel", id);
    if(o != null) return o;

      // check the object exists and get it from database
    config.ConfigObject obj = db.get_object("Barrel", id);
    return get(db, obj);
  }


  static public Barrel[] get(config.Configuration db, config.Query query) {
    ConfigObject[] objs = db.get_objects("Barrel", query);
    Barrel[] result = new Barrel[objs.length];
    for (int i = 0; i < objs.length; i++) {
      result[i] = get(db, objs[i]);
    }
    return result;
  }

  static public Barrel create(config.Configuration db, String file, String id) {
    return get(db, db.create(file, "Barrel", id));
  }

  static public Barrel create(config.Configuration db, config.DalObject at, String id) {
    return get(db, db.create(at.config_object(), "Barrel", id));
  }

}

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