SpringData JPA - No Dialect mapping for JDBC type: 2003 - spring-boot

Question

Am getting the below error
No Dialect mapping for JDBC type: 2003; nested exception is org.hibernate.MappingException: No Dialect mapping for JDBC type: 2
Repo Code is as follows
String chrPackageId = "select\n" +
"\tcombination_hr_id as \"chRuleId\",\n" +
"\tcombination_hr_name as \"chRuleName\", \n" +
"\tholdingrule_list as \"selectedRules\"\n" +
"from\n" +
"\tcombination_holding_rule chr\n" +
"where\n" +
"\tpackage_id =:packageId";
#Query(value=chrPackageId,nativeQuery = true)
List<CHRfromPackageIdDTO> repoCHRFromPackageId(int packageId);
DTO object is as below
public interface CHRfromPackageIdDTO {
int getChRuleId();
String getChRuleName();
Integer[] getSelectedRules();
}
We use Postgres DB, there is some issue in getting the Integer[] value actually.
The other answers in Stackoverflow are Hibernate specific. but we use spring-data-jpa.

Answer 1

Entity Class
import com.vladmihalcea.hibernate.type.array.IntArrayType;
import com.vladmihalcea.hibernate.type.array.StringArrayType;
import com.vladmihalcea.hibernate.type.json.JsonBinaryType;
import com.vladmihalcea.hibernate.type.json.JsonStringType;
import lombok.*;
import org.hibernate.annotations.Type;
import org.hibernate.annotations.TypeDef;
import org.hibernate.annotations.TypeDefs;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;
#AllArgsConstructor
#NoArgsConstructor
#Getter
#Setter
#TypeDefs({
#TypeDef(
name = "string-array",
typeClass = StringArrayType.class
),
#TypeDef(
name = "int-array",
typeClass = IntArrayType.class
),
#TypeDef(name = "json", typeClass = JsonStringType.class),
#TypeDef(name = "jsonb", typeClass = JsonBinaryType.class)
})
#Entity
#Table(name="combination_holding_rule")
public class CombHoldingRule {
#Id
#Column(name="combination_hr_id")//Checked
private Integer combHoldingRuleId;
#Column(name="combination_hr_name")//Checked
private String combHoldingRuleName;
#Column(name="jurisdiction_id")//Checked
private Integer jurisdictionId;
#Column(name="function_group_id")//Checked
private Integer functionGroupId;
#Column(name="overall_netting_type")//Checked
private String overallNettingType;
#Column(name="package_id")//Checked
private Integer packageId;
#Type(type = "int-array")
#Column(
name = "holdingrule_list",
columnDefinition = "integer[]"
)
private int[] holdingRuleList;
}
In Repository
#Query(value="from CombHoldingRule where packageId=:packageId")
List<CombHoldingRule> repoCHRFromPackageId(#Param("packageId") int packageId);
I took the result from JPAQuery into the Entity , then did the below in the Service Layer
public List<CHRfromPackageIdDTO> getCHRFromPackageIdService(int packageId) {
List<CombHoldingRule> combHoldingRuleList = combinationHRrepo.
repoCHRFromPackageId(packageId);
List<CHRfromPackageIdDTO> combDTO = new ArrayList<>();
for ( CombHoldingRule combHoldingRule : combHoldingRuleList) {
CHRfromPackageIdDTO temp = new CHRfromPackageIdDTO(combHoldingRule.getCombHoldingRuleId(),
combHoldingRule.getCombHoldingRuleName(),
combHoldingRule.getHoldingRuleList());
combDTO.add(temp);
}
return combDTO;
}
Also pls check HERE
Note: This is kind of work around I believe, really not sure , how to directly take value from a native query into a custom Pojo instead of an entity class. I really appreciate if anyone post the answer for that. I would accept that as the Answer.