Hibernate design to speed up querying of large dataset
- by paddydub
I currently have the below tables representing a bus network mapped in hibernate, accessed from a Spring MVC based bus route planner
I'm trying to make my route planner application perform faster, I load all the above tables into Lists to perform the route planner logic.
I would appreciate if anyone has any ideas of how to speed my performace
Or any suggestions of another method to approach this problem of handling a large set of data
Coordinate Connections Table (INT,INT,INT, DOUBLE)( Containing 50,000 Coordinate Connections)
ID, FROMCOORDID, TOCOORDID, DISTANCE
1 1 2 0.383657
2 1 17 0.173201
3 1 63 0.258781
4 1 64 0.013726
5 1 65 0.459829
6 1 95 0.458769
Coordinate Table (INT,DECIMAL, DECIMAL) (Containing 4700 Coordinates)
ID , LAT, LNG
0 59.352669 -7.264341
1 59.352669 -7.264341
2 59.350012 -7.260653
3 59.337585 -7.189798
4 59.339221 -7.193582
5 59.341408 -7.205888
Bus Stop Table (INT, INT, INT)(Containing 15000 Stops)
StopID RouteID COORDINATEID
1000100001 100 17
1000100002 100 18
1000100003 100 19
1000100004 100 20
1000100005 100 21
1000100006 100 22
1000100007 100 23
This is how long it takes to load all the data from each table:
stop.findAll = 148ms, stops.size: 15670
Hibernate: select coordinate0_.COORDINATEID as COORDINA1_2_, coordinate0_.LAT as LAT2_, coordinate0_.LNG as LNG2_ from COORDINATES coordinate0_
coord.findAll = 51ms , coordinates.size: 4704
Hibernate: select coordconne0_.COORDCONNECTIONID as COORDCON1_3_, coordconne0_.DISTANCE as DISTANCE3_, coordconne0_.FROMCOORDID as FROMCOOR3_3_, coordconne0_.TOCOORDID as TOCOORDID3_ from COORDCONNECTIONS coordconne0_
coordinateConnectionDao.findAll = 238ms ; coordConnectioninates.size:48132
Hibernate Annotations
@Entity
@Table(name = "STOPS")
public class Stop implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
@Column(name = "STOPID")
private int stopID;
@Column(name = "ROUTEID", nullable = false)
private int routeID;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "COORDINATEID", nullable = false)
private Coordinate coordinate;
}
@Table(name = "COORDINATES")
public class Coordinate {
@Id
@GeneratedValue
@Column(name = "COORDINATEID")
private int CoordinateID;
@Column(name = "LAT")
private double latitude;
@Column(name = "LNG")
private double longitude;
}
@Entity
@Table(name = "COORDCONNECTIONS")
public class CoordConnection {
@Id
@GeneratedValue
@Column(name = "COORDCONNECTIONID")
private int CoordinateID;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "FROMCOORDID", nullable = false)
private Coordinate fromCoordID;
@ManyToOne(fetch = FetchType.LAZY)
@JoinColumn(name = "TOCOORDID", nullable = false)
private Coordinate toCoordID;
@Column(name = "DISTANCE", nullable = false)
private double distance;
}
