• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Jeanne Boyarsky
  • Ron McLeod
  • Paul Clapham
  • Liutauras Vilda
Sheriffs:
  • paul wheaton
  • Rob Spoor
  • Devaka Cooray
Saloon Keepers:
  • Stephan van Hulst
  • Tim Holloway
  • Carey Brown
  • Frits Walraven
  • Tim Moores
Bartenders:
  • Mikalai Zaikin

How can I get collection object of one object in another persistence object ?

 
Greenhorn
Posts: 4
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
explanation of question
--------------------------
Suppose I have two table like plant and modulo.
In one plant there are number of modules but the tables are not related,please have a look on table.
plant
-----
plant_id Name operator commissioning nominal_power contador installation_id report_id
modulo
--------
module_id power mac ip canid etotal mpp_id
Plant.java
-----------
public class Plant implements Serializable {
private static final long serialVersionUID = 1L;
// @Max(value=?) @Min(value=?)//if you know range of your decimal fields consider using these annotations to enforce field validation
@Id
@GeneratedValue(strategy=GenerationType.SEQUENCE, generator="SEQ2")
@Basic(optional = false)
@NotNull
@Column(name = "PLANT_ID")
private BigDecimal plantId;
@Size(max = 45)
@Column(name = "NAME")
private String name;
@Size(max = 30)
@Column(name = "OPERATOR")
private String operator;
@Column(name = "COMMISSIONING")
@Temporal(TemporalType.TIMESTAMP)
private Date commissioning;
@Basic(optional = false)
@NotNull
@Column(name = "NOMINAL_POWER")
private double nominalPower;
@Column(name = "CONTADOR")
private BigInteger contador;
@Column(name = "LONGITUDE")
private BigDecimal longitude;
@Column(name = "LATITUDE")
private BigDecimal latitude;
/* here I want something like this private Collection<Modulo> getCollection */
//setters and getters and constructors
}

comments: If it is possible how to do it? otherwise what modification we have to in database. Please help me it's urgent?
 
reply
    Bookmark Topic Watch Topic
  • New Topic