Composite key query in JPQL not generated correctly - postgresql

Question

I use spring data jpa and I use composite key
#Entity
#IdClass(SamplesPK.class)
public class Samples extends BaseEntity {
#Id
private String sampleLetter;
#Embedded
private TestSamples testSamples;
#Id
#ManyToOne(optional=false)
#JoinColumns({
#JoinColumn(name = "sampling_id", referencedColumnName = "id"),
#JoinColumn(name = "sampling_year", referencedColumnName = "year")})
private Samplings sampling;
//get set
}
public class SamplesPK implements Serializable {
private SamplingsPK sampling;
private String sampleLetter;
public SamplesPK(SamplingsPK sampling, String sampleLetter) {
this.sampling = sampling;
this.sampleLetter = sampleLetter;
}
//get set
}
#Entity
#IdClass(SamplingsPK.class)
#Inheritance(strategy = InheritanceType.SINGLE_TABLE)
public class Samplings {
#Id
private Integer year;
#Id
#GeneratedValue
private Integer id;
#OneToMany(mappedBy = "sampling", cascade = CascadeType.ALL, orphanRemoval = true)
private List<Samples> samples = new ArrayList<>();
//get set
}
public class SamplingsPK implements Serializable {
private int year;
private Integer id;
public SamplingsPK(int year, Integer id) {
this.id = id;
this.year = year;
}
}
I try to do search sample with composite key
#Query(value = "select s from Samples s Join fetch s.sampling sp Join fetch sp.product p Join fetch p.productType Join Fetch s.testSamples.compressionTest where s.id=:id and s.year=:year and s.sampleLetter=:sampleLetter and sp.id=:id and sp.year=:year")
public Samples findSamplesWithFullProductAndTest(#Param("id") Integer id, #Param("year") Integer year, #Param("sampleLetter") String sampleLetter);
I get this error
java.lang.IllegalArgumentException: Parameter value [2] did not match
expected type [com.lcm.model.SamplesPK (n/a)]
Edit,
I modified query to
select s from Samples s Join fetch s.sampling sp Join fetch sp.product p Join fetch p.productType Join Fetch s.testSamples.compressionTest where s.sampling.id=:id and s.sampling.year=:year and s.sampleLetter=:sampleLetter and sp.id=:id and sp.year=:year
but I get this error
org.postgresql.util.PSQLException: ERROR: operator does not exist:
record = integer Indice : No operator matches the given name and
argument type(s). You might need to add explicit type casts.
Generated query is
select
samples0_.sample_letter as sample_l1_20_0_,
samples0_.sampling_id as sampling0_20_0_,
samplings1_.id as id2_21_1_,
samplings1_.year as year3_21_1_,
products2_.id as id2_15_2_,
producttyp3_.id as id1_16_3_,
compressio4_.id as id1_3_4_,
samples0_.sampling_id as samplin27_20_0_,
samples0_.sampling_year as samplin28_20_0_,
samples0_.compression as compres18_20_0_,
samples0_.compression_number as compres19_20_0_,
samples0_.compression_test_id as compres29_20_0_,
samplings1_.available_for_test as availabl4_21_1_,
samplings1_.dtype as dtype1_21_1_,
products2_.created_at as created_3_15_2_,
products2_.updated_at as updated_4_15_2_,
products2_.name_en as name_en5_15_2_,
products2_.dtype as dtype1_15_2_,
producttyp3_.created_at as created_2_16_3_,
producttyp3_.updated_at as updated_3_16_3_,
producttyp3_.name_en as name_en4_16_3_,
compressio4_.created_at as created_2_3_4_,
compressio4_.updated_at as updated_3_3_4_
from
permacon.samples samples0_
inner join
permacon.samplings samplings1_
on samples0_.sampling_id=samplings1_.id
and samples0_.sampling_year=samplings1_.year
inner join
permacon.products products2_
on samplings1_.product_id=products2_.id
inner join
permacon.product_types producttyp3_
on products2_.product_type_id=producttyp3_.id
inner join
permacon.compressions compressio4_
on samples0_.compression_test_id=compressio4_.id
where
(
samples0_.sampling_id, samples0_.sampling_year
)=?
and samplings1_.year=?
and samples0_.sample_letter=?
and samplings1_.id=?
and samplings1_.year=?
Edit 2
#MappedSuperclass
public abstract class BaseEntity {
private LocalDateTime createdAt;
private LocalDateTime updatedAt;
//get set...
}
Inheritance is used because I have two table who extends Samplings

Answer 1

you year field is a int put int instead of Integer in your
findSamplesWithFullProductAndTest
method