Hibernate Transformers.aliasToBean populate primary fields - sql-server

Question

I am trying to get list of Tbcompany table using Transformers.aliasToBean with 2 primary key fields.
I am using SQL SERVER and Hibernate 3.2.4.
My table has 2 primary fields.
Tbcompany.class
public class Tbcompany {
private TbcompanyId id;
private String hcompanycode;
public TbcompanyId getId() {
return id;
}
public void setId(TbcompanyId id) {
this.id = id;
}
public String getHcompanycode() {
return hcompanycode;
}
public void setHcompanycode(String hcompanycode) {
this.hcompanycode = hcompanycode;
}
}
And inside TbcompanyId.class :
public class TbcompanyId
implements Serializable
{
private String companycode;
private String companyname;
public boolean equals(Object o) {
if (o == this) {
return true;
}
if (!(o instanceof TbcompanyId)) {
return false;
}
TbcompanyId other = ((TbcompanyId) o);
if (this.companycode == null) {
if (other.companycode!= null) {
return false;
}
} else {
if (!this.companycode.equals(other.companycode)) {
return false;
}
}
if (this.companyname == null) {
if (other.companyname!= null) {
return false;
}
} else {
if (!this.companyname.equals(other.companyname)) {
return false;
}
}
return true;
}
public int hashCode() {
int rtn = 17;
rtn = (rtn* 37);
if (this.companycode!= null) {
rtn = (rtn + this.companycode.hashCode());
}
rtn = (rtn* 37);
if (this.companyname!= null) {
rtn = (rtn + this.companyname.hashCode());
}
return rtn;
}
public String getCompanycode() {
return companycode;
}
public void setCompanycode(String companycode) {
this.companycode = companycode;
}
public String getCompanyname() {
return companyname;
}
public void setCompanyname(String companyname) {
this.companyname = companyname;
}
I want to create a form and use Transformers.aliasToBean to populate the form .
This query :
Query q;
q = session.createQuery("SELECT a.id.companycode as companycode,a.id.companyname as companyname,a.hcompanycode as hcompanycode FROM Tbcompany a");
q.setResultTransformer(Transformers.aliasToBean(Tbcompany.class));
list = q.list();
gives me an error of :
org.hibernate.PropertyNotFoundException: Could not find setter for companycode on class com.loansdb.data.Tbcompany
While this query :
Query q;
q = session.createQuery("SELECT a.id.companycode,a.id.companyname,a.hcompanycode as hcompanycode FROM
Tbcompany a");
q.setResultTransformer(Transformers.aliasToBean(Tbcompany.class));
list = q.list();
gives me this error :
org.hibernate.PropertyNotFoundException: Could not find setter for 0 on class com.loansdb.data.Tbcompany
Does anyone know how to do this?

Answer 1

The aliasToBean transformer use the name of the SQL columns returned and try to find a field with the same name on the class target that have a set method created.
So, your query returns a a.id.companycode:
SELECT a.id.companycode as companycode,a.id.companyname as companyname,a.hcompanycode as hcompanycode FROM Tbcompany a
The error said:
org.hibernate.PropertyNotFoundException: Could not find setter for companycode on class com.loansdb.data.Tbcompany
And your Tbcompany class does not have a setter to companycode.
So, to correct your Tbcompany class and looking your query, seems to me that the class it's something like:
public class Tbcompany {
private String companycode;
private String companycode;
private String companyname;
public String setCompanycode(String companycode) {
this.companycode = companycode;
}
// create the constructor, getters and setters
}