[Hibernate-JIRA] Created: (HHH-5792) Unable to JOIN embedded objects in Criteria API
by scLee (JIRA)
Unable to JOIN embedded objects in Criteria API
-----------------------------------------------
Key: HHH-5792
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5792
Project: Hibernate Core
Issue Type: Bug
Components: entity-manager, query-criteria
Affects Versions: 3.6.0
Reporter: scLee
Priority: Blocker
Attachments: Client.java, CriteriaApiTest.java, Name.java
Exception is thrown when trying to JOIN embedded attribute in Criteria API. E.g. having the following entity:
{quote}
@Entity
public class Client implements Serializable {
@Id
public int id;
@Embedded
public Name name;
}
@Embeddable
public class Name implements Serializable {
@Column
public String firstName;
@Column
public String lastName;
}
{quote}
The following code
{quote}
CriteriaQuery< Client > cq = cb.createQuery( Client.class );
Root< Client > root = cq.from( Client.class );
cq.where( cb.equal( root.*join*( "name" ).get( "firstName" ), "foo" ) );
{quote}
throws this exception:
{quote}
java.lang.ClassCastException: org.hibernate.ejb.metamodel.SingularAttributeImpl cannot be cast to javax.persistence.metamodel.ManagedType
at org.hibernate.ejb.criteria.path.AbstractFromImpl.locateManagedType(AbstractFromImpl.java:151)
at org.hibernate.ejb.criteria.path.AbstractFromImpl.locateAttributeInternal(AbstractFromImpl.java:145)
at org.hibernate.ejb.criteria.path.AbstractPathImpl.locateAttribute(AbstractPathImpl.java:216)
at org.hibernate.ejb.criteria.path.AbstractFromImpl.join(AbstractFromImpl.java:449)
at org.hibernate.ejb.criteria.path.AbstractFromImpl.join(AbstractFromImpl.java:433)
at foo.CriteriaApiTest.embeddableInPath(CriteriaApiTest.java:45)
{quote}
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12 years
[Hibernate-JIRA] Created: (HHH-2796) Generated version are incremented by Hibernate
by Heba Tawfik (JIRA)
Generated version are incremented by Hibernate
----------------------------------------------
Key: HHH-2796
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2796
Project: Hibernate3
Issue Type: Bug
Components: core
Affects Versions: 3.2.1
Environment: 3.2.1, Oracle 10g
Reporter: Heba Tawfik
Creating a new entity which it's version is set to generated="always" & saving it, then in the same session adding an object to any of its on-to-many relationships is throwing a StaleObjectStateException.
To regenerate the problem, consider the following code
1- departement.hbm.xml :
----------------------------------------
<hibernate-mapping package="com.myproject.domain">
<class name="Departement" table="Departement">
<id name="id">
<column name="dept_id" />
</id>
<version column="version" generated="always" name="version" type="integer" unsaved-value="null" />
<property name="name" column="name" />
<bag name="employees" inverse="true" cascade="all" lazy="true">
<key column="dept_id"></key>
<one-to-many class="Employee" />
</bag>
</class>
</hibernate-mapping>
2- employee.hbm.xml :
--------------------------------------
<hibernate-mapping package="com.myproject.domain">
<class name="Employee" table="Employee">
<id name="id">
<column name="employee_id" />
</id>
<property name="firstName" column="first_name" />
<property name="lastName" column="last_name" />
<property name="age" column="age" />
<property name="salary" column="salary" />
<many-to-one cascade="none"
class="com.myproject.domain.Departement"
column="dept_id" embed-xml="true" insert="false"
name="department" not-null="false"
unique="false" update="false" not-found="ignore">
</many-to-one>
</class>
</hibernate-mapping>
3- Departement.Java
---------------------------
package com.myproject.domain;
import java.util.ArrayList;
import java.util.List;
public class Departement extends BaseDepartement{
int id;
String name;
List employees;
Integer version;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getVersion() {
return version;
}
public void setVersion(Integer version) {
this.version = version;
}
public List getEmployees() {
return employees;
}
public void setEmployees(List employees) {
this.employees = employees;
}
public void addToEmployeeList(Employee emp)
{
if(employees==null)
{
setEmployees(new ArrayList());
}
employees.add(emp);
}
}
4- Employee.Java :
---------------------------
package com.myproject.domain;
public class Employee {
int id;
String firstName;
String lastName;
int age;
int salary;
BaseDepartement department;
public BaseDepartement getDepartment() {
return department;
}
public void setDepartment(BaseDepartement department) {
this.department = department;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public int getSalary() {
return salary;
}
public void setSalary(int salary) {
this.salary = salary;
}
}
4- Code To Test :
------------------------
public static void main(String args[]) throws Exception
{
SessionFactory factory = new Configuration().configure("com/myproject/config/hibernate.cfg.xml").buildSessionFactory();
Session session = factory.openSession();
Transaction transaction = session.beginTransaction();
Departement aDept =new Departement();
aDept.setId(10);
aDept.setName("Test");
session.save(aDept);
transaction.commit();
transaction = session.beginTransaction();
Employee emp=new Employee();
emp.setId(10);
emp.setFirstName("test");
emp.setLastName("test");
emp.setSalary(10);
emp.setAge(10);
emp.setDepartment(aDept);
aDept.addToEmployeeList(emp);
session.saveOrUpdate(aDept);
transaction.commit();
session.close();
}
On the database, the default value for version cloumn is set to "1" and a trigger is defined as follow on the Departement table:
create or replace
TRIGGER TRIGGER1
BEFORE UPDATE ON DEPARTEMENT
FOR EACH ROW
BEGIN
:new.version:= :old.version + 1;
END;
Upon executing the above code, the following is the hibernate logging :
automatically flushing session
/* insert com.eds.myproject.domain.Departement
*/ insert
into
Departement
(name, dept_id)
values
(?, ?)
binding 'Test' to parameter: 1
binding '10' to parameter: 2
/* get generated state com.eds.myproject.domain.Departement */ select
departemen_.version as version1_
from
Departement departemen_
where
departemen_.dept_id=?
binding '10' to parameter: 1
returning '1' as column: version1_
before transaction completion
after transaction completion
automatically flushing session
/* get current state com.eds.myproject.domain.Employee */ select
employee_.employee_id,
employee_.first_name as first2_0_,
employee_.last_name as last3_0_,
employee_.age as age0_,
employee_.salary as salary0_
from
Employee employee_
where
employee_.employee_id=?
binding '10' to parameter: 1
/* insert com.eds.myproject.domain.Employee
*/ insert
into
Employee
(first_name, last_name, age, salary, employee_id)
values
(?, ?, ?, ?, ?)
binding 'test' to parameter: 1
binding 'test' to parameter: 2
binding '10' to parameter: 3
binding '10' to parameter: 4
binding '10' to parameter: 5
/* update
com.eds.myproject.domain.Departement */ update
Departement
set
name=?
where
dept_id=?
and version=?
binding 'Test' to parameter: 1
binding '10' to parameter: 2
binding '2' to parameter: 3
Could not synchronize database state with session
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [com.eds.myproject.domain.Departement#10]
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1714)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2357)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2257)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2557)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at com.eds.myproject.test.Test.main(Test.java:43)
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [com.eds.myproject.domain.Departement#10]
at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1714)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2357)
at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2257)
at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2557)
at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
at com.eds.myproject.test.Test.main(Test.java:43)
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12 years
[Hibernate-JIRA] Created: (HSEARCH-726) Facetted search on embedded collections takes only first element from collection
by Elmer van Chastelet (JIRA)
Facetted search on embedded collections takes only first element from collection
--------------------------------------------------------------------------------
Key: HSEARCH-726
URL: http://opensource.atlassian.com/projects/hibernate/browse/HSEARCH-726
Project: Hibernate Search
Issue Type: Bug
Components: query
Affects Versions: 3.4.0.CR2, 3.4.0.CR1, 3.4.0.Beta1, 3.4.0.Alpha1
Environment: Any valid config I suppose, tested using Hibernate Core 3.6.3 + Search 3.4.0.CR2, mysql and in Hibernate Search test environment
Reporter: Elmer van Chastelet
Attachments: EmbeddedCollectionsFacetsTest.zip
>From [Hibernate Search Forum: Bug or not? Faceted search + embedded fields (*tomany)|https://forum.hibernate.org/viewtopic.php?f=9&t=1010472&start=0].
Faceted search won't work correctly when used on collections. For the cause I quote Hardy Ferentschik : ??The current faceting implementation utilizes the Lucene FieldCache which has a limitation that each document must have a single value for the specified field.??
I can think of many use cases in which faceted search on collections is really needed, some examples:
Facetting on authors when searching for publications
Facetting on ingredients when searching for recipes
Facetting on actors when searching for movies
...
Attached is a hibernate search test case. It fails on retrieving the right amount of matched authors.
Currently I don't have the needed insight to suggest an improvement on current implementation to make it compatible with collections. Hopefully it can be achieved with small changes. Good luck :)
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12 years
[Hibernate-JIRA] Created: (HHH-2776) Restrictons.in(..) generates invalid SQL if list of values is empty
by Adrian Smith (JIRA)
Restrictons.in(..) generates invalid SQL if list of values is empty
-------------------------------------------------------------------
Key: HHH-2776
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2776
Project: Hibernate3
Issue Type: Bug
Components: query-criteria
Affects Versions: 3.2.2
Environment: Hibernate 3.2.2.ga, MySQL 4.1.18, Windows XP
Reporter: Adrian Smith
I have classes called A and B. There is a 1:n relationship from A to B.
Class B has the following in its mapping file:
<many-to-one name="a" class="A" column="fk_a_id" not-null="true" />
If I write the following code:
List<B> foo() {
List<A> aList = ....
Session session = ....
Criteria query = session.createCriteria(B.class);
query.add(Restrictions.in("a", aList));
return query.list();
}
Then all works fine and the results I want are returned. However, if aList is empty (i.e. aList.size()==0) then the query.list function generates and executes invalid SQL for MySQL.
java.sql.SQLException: Syntax error or access violation message from server: "You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ')' at line 1"
I imagine that it is generating SQL like IN () which isn't valid.
I realize it's a bit ridiculous to want to find the rows where a field is IN the empty list. Nothing will ever be returned. However, in my opinion it should still be allowed, and return no rows, just as saying "WHERE 1=2" is allowed, just doesn't return any rows.
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12 years
[Hibernate-JIRA] Created: (HCANN-17) SecondaryTable JoinColumn cannot reference a non primary key
by Krashan Brahmanjara (JIRA)
SecondaryTable JoinColumn cannot reference a non primary key
------------------------------------------------------------
Key: HCANN-17
URL: http://opensource.atlassian.com/projects/hibernate/browse/HCANN-17
Project: Hibernate Commons Annotations
Issue Type: Bug
Affects Versions: 3.1.0.GA
Environment: Hibernate libraries added to jboss-6.0.0.20100216-M2(3.5) and jboss-5.1.0.GA(3.3.1) used with postgresql-8.3.7-1 database and jdbc driver postgresql-8.3-603.jdbc4.jar
Reporter: Krashan Brahmanjara
Hibertate annotations reject correct annotations with an error
Full exception
org.hibernate.AnnotationException: SecondaryTable JoinColumn cannot reference a non primary key
at org.hibernate.cfg.annotations.TableBinder.bindFk(TableBinder.java:243)
at org.hibernate.cfg.annotations.EntityBinder.bindJoinToPersistentClass(EntityBinder.java:520)
at org.hibernate.cfg.annotations.EntityBinder.createPrimaryColumnsToSecondaryTable(EntityBinder.java:510)
at org.hibernate.cfg.annotations.EntityBinder.finalSecondaryTableBinding(EntityBinder.java:441)
at org.hibernate.cfg.SecondaryTableSecondPass.doSecondPass(SecondaryTableSecondPass.java:25)
Example
Three entity, two connected to main 'dokument' by their id columns
@Entity
@Table(name = "dokument")
@SecondaryTables(value = {
@SecondaryTable(name = "dokument_status", pkJoinColumns = @PrimaryKeyJoinColumn(name = "id_status", referencedColumnName = "id_status")),
@SecondaryTable(name = "typ_dok", pkJoinColumns = @PrimaryKeyJoinColumn(name = "id_type", referencedColumnName = "id_type")) })
public class PosrDokument implements Serializable {
@Id
@Column(name="id_dokumentu", unique=true, nullable=false)
private int id_dokumentu;
@Column(name = "status", table = "dokument_status", nullable = false, insertable = false, updatable = false)
private String status;
@Column(name = "name", table = "typ_dok", nullable = false, insertable = false, updatable = false)
private String name;
(...)
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12 years, 1 month