@Entity
public class Employee implements Serializable {
@Id
@GeneratedValue
private Long id;
@Embedded
private EmployeeName employeeName;
// accessor omitted
Using JPQL IN clause with composite key
TweetPosted on Sunday Oct 25, 2015 at 08:16PM in JPA
Assume we have an entity named Employee:
And EmployeeName:
@Embeddable
public class EmployeeName implements Serializable {
private String firstName;
private String lastName;
// accessor omitted
Using preceding entity, We want to execute following JPQL:
SELECT e FROM Employee e WHERE e.employeeName IN :employeeNames
Will it work? It works for Hibernate 4.3.11.Final but unfortunately not for EclipseLink 2.6.1.
Hibernate generates following SQL for the JPQL and the parameter of a List contains two elements:
Hibernate: select employee0_.id as id1_0_, employee0_.firstName as firstNam2_0_, employee0_.lastName as lastName3_0_ from Employee employee0_ where employee0_.firstName=? and employee0_.lastName=? or employee0_.firstName=? and employee0_.lastName=?
[Employee{id=1, employeeName=EmployeeName{firstName='Scott', lastName='Vogel'}}, Employee{id=2, employeeName=EmployeeName{firstName='Nick', lastName='Jett'}}]
EclipseLink failed to generate correct SQL for the JPQL. In such case, you need to create a JPQL by hand or Criteria API that uses each column separately (lastName and firstName). EclipseLink produces following Exception:
Exception in thread "main" javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.1.v20150916-55dc7c3): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLDataException: An attempt was made to get a data value of type 'BIGINT' from a data value of type 'entity.EmployeeName'.
Error Code: 20000
Call: SELECT ID, FIRSTNAME, LASTNAME FROM EMPLOYEE WHERE (ID IN (?,?))
bind => [EmployeeName{firstName='Scott', lastName='Vogel'}, EmployeeName{firstName='Nick', lastName='Jett'}]
Query: ReadAllQuery(referenceClass=Employee sql="SELECT ID, FIRSTNAME, LASTNAME FROM EMPLOYEE WHERE (ID IN ?)")
at org.eclipse.persistence.internal.jpa.QueryImpl.getDetailedException(QueryImpl.java:382)
at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:260)
at org.eclipse.persistence.internal.jpa.QueryImpl.getResultList(QueryImpl.java:473)
at main.Main.main(Main.java:45)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)
Caused by: Exception [EclipseLink-4002] (Eclipse Persistence Services - 2.6.1.v20150916-55dc7c3): org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLDataException: An attempt was made to get a data value of type 'BIGINT' from a data value of type 'entity.EmployeeName'.
Error Code: 20000
Call: SELECT ID, FIRSTNAME, LASTNAME FROM EMPLOYEE WHERE (ID IN (?,?))
bind => [EmployeeName{firstName='Scott', lastName='Vogel'}, EmployeeName{firstName='Nick', lastName='Jett'}]
Query: ReadAllQuery(referenceClass=Employee sql="SELECT ID, FIRSTNAME, LASTNAME FROM EMPLOYEE WHERE (ID IN ?)")
at org.eclipse.persistence.exceptions.DatabaseException.sqlException(DatabaseException.java:340)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.basicExecuteCall(DatabaseAccessor.java:684)
at org.eclipse.persistence.internal.databaseaccess.DatabaseAccessor.executeCall(DatabaseAccessor.java:560)
at org.eclipse.persistence.internal.sessions.AbstractSession.basicExecuteCall(AbstractSession.java:2055)
at org.eclipse.persistence.sessions.server.ServerSession.executeCall(ServerSession.java:570)
at org.eclipse.persistence.sessions.server.ClientSession.executeCall(ClientSession.java:258)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:242)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeCall(DatasourceCallQueryMechanism.java:228)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.executeSelectCall(DatasourceCallQueryMechanism.java:299)
at org.eclipse.persistence.internal.queries.DatasourceCallQueryMechanism.selectAllRows(DatasourceCallQueryMechanism.java:694)
at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRowsFromTable(ExpressionQueryMechanism.java:2740)
at org.eclipse.persistence.internal.queries.ExpressionQueryMechanism.selectAllRows(ExpressionQueryMechanism.java:2693)
at org.eclipse.persistence.queries.ReadAllQuery.executeObjectLevelReadQuery(ReadAllQuery.java:559)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeDatabaseQuery(ObjectLevelReadQuery.java:1175)
at org.eclipse.persistence.queries.DatabaseQuery.execute(DatabaseQuery.java:904)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.execute(ObjectLevelReadQuery.java:1134)
at org.eclipse.persistence.queries.ReadAllQuery.execute(ReadAllQuery.java:460)
at org.eclipse.persistence.queries.ObjectLevelReadQuery.executeInUnitOfWork(ObjectLevelReadQuery.java:1222)
at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.internalExecuteQuery(UnitOfWorkImpl.java:2896)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1857)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1839)
at org.eclipse.persistence.internal.sessions.AbstractSession.executeQuery(AbstractSession.java:1804)
at org.eclipse.persistence.internal.jpa.QueryImpl.executeReadQuery(QueryImpl.java:258)
... 7 more
Complete source code that has been used in the test can be obtained from https://github.com/lbtc-xxx/jpa-composite-in
Tags: eclipselink hibernate jpa jpql
