1 19 20 package org.polepos.teams.db4o; 21 22 import org.polepos.circuits.barcelona.*; 23 import org.polepos.framework.*; 24 25 import com.db4o.*; 26 import com.db4o.query.*; 27 28 29 public class BarcelonaDb4o extends Db4oDriver implements BarcelonaDriver{ 30 31 public void takeSeatIn(Car car, TurnSetup setup) throws CarMotorFailureException{ 32 Db4o.configure().objectClass( B2.class ).objectField( "b2" ).indexed( true ); 33 super.takeSeatIn(car, setup); 34 } 35 36 public void write(){ 37 int count = setup().getObjectCount(); 38 begin(); 39 for (int i = 1; i<= count; i++) { 40 B4 b4 = new B4(); 41 b4.setAll(i); 42 store(b4); 43 } 44 commit(); 45 } 46 47 public void read(){ 48 readExtent(B4.class); 49 } 50 51 public void query(){ 52 int count = setup().getSelectCount(); 53 for (int i = 1; i <= count; i++) { 54 Query q = db().query(); 55 q.constrain(B4.class); 56 q.descend("b2").constrain(i); 57 doQuery(q); 58 } 59 } 60 61 public void delete(){ 62 begin(); 63 Query q = db().query(); 64 q.constrain(B4.class); 65 ObjectSet deleteSet = q.execute(); 66 while(deleteSet.hasNext()){ 67 db().delete(deleteSet.next()); 68 addToCheckSum(5); 69 } 70 commit(); 71 } 72 73 } 74 | Popular Tags |