One to many? problems
Hi.
I,m trying to combine two tables into one. Table 1 is persons. Table two is movies. Table to insert in is, lets say per_mov_table
I'm building a form that will get values from both tables 1 and 2 and insert into a new one.
In that form I can select a person from a dropdown list. And select movies from a select list. Its
possible to select multiple movies per person.
I,m trying with the ADDT behaviors. but I get some strange results.
Lets say I select person nr 2 and movies 2,3 and 4 in the form. Then I would expect results in new table to be something like: (id_fk_pers id_fk_mov are the foregin keys)
id_per_mov_table id_fk_pers id_fk_mov
1 2 2
2 2 3
3 2 4
instead the output is:
id_per_mov_table id_fk_pers id_fk_mov
1 2 1
2 77 2
3 77 3
4 77 4
First it inserts a new row with som bogus value that I dont know where it comes from
Then it seemes that the id_fk_pers have som sort of autoincrement because if I do the same insert again I get
id_per_mov_table id_fk_pers id_fk_mov
1 2 1
2 80 2
3 80 3
4 80 4
So id_fk_pers is not getting the person id from the persons table. it is linked together with pers_id and id_fk_pers.
So what am I to do? I'm desperate to get this working.
I dont care how to do it but the goal is to show a detail page with one person and many movies with a ?pers_id link from another page.
Regards
Olle
ps. sorry for the long post
Hi.
I,m trying to combine two tables into one. Table 1 is persons. Table two is movies. Table to insert in is, lets say per_mov_table
I'm building a form that will get values from both tables 1 and 2 and insert into a new one.
In that form I can select a person from a dropdown list. And select movies from a select list. Its
possible to select multiple movies per person.
I,m trying with the ADDT behaviors. but I get some strange results.
Lets say I select person nr 2 and movies 2,3 and 4 in the form. Then I would expect results in new table to be something like: (id_fk_pers id_fk_mov are the foregin keys)
id_per_mov_table id_fk_pers id_fk_mov
1 2 2
2 2 3
3 2 4
instead the output is:
id_per_mov_table id_fk_pers id_fk_mov
1 2 1
2 77 2
3 77 3
4 77 4
First it inserts a new row with som bogus value that I dont know where it comes from
Then it seemes that the id_fk_pers have som sort of autoincrement because if I do the same insert again I get
id_per_mov_table id_fk_pers id_fk_mov
1 2 1
2 80 2
3 80 3
4 80 4
So id_fk_pers is not getting the person id from the persons table. it is linked together with pers_id and id_fk_pers.
So what am I to do? I'm desperate to get this working.
I dont care how to do it but the goal is to show a detail page with one person and many movies with a ?pers_id link from another page.
Regards
Olle
ps. sorry for the long post
Similar Messages
-
One to many problem onan existing shema
I'm trying to do an insert in a database using one-to-many mapping.
I have two tables on an existing schema.
The two tables are:
ANAG
| ID_ANAG | RAG_SOC |
|-------------------------|
| 1 | a name |
|-------------------------|
| ... | ..... |
|-------------------------|
INDI
| ID_INDI | ID_ENTITA | INDIRIZZO|
|-------------------------------------------
| 101 | 1 | address 1|
|------------------------------------------|
| 102 | 1 | address 2|
|------------------------------------------|
| 103 | .... | .... |
|------------------------------------------|
One ANAG can have m INDI. Given an ANAG I can find the related INDI(s)
with the relation
ANAG.ID_ANAG=INDI.ID_ENTITA
My two java classes are:
package domain;
import java.util.*;
public class Anagrafica
private int idAnag; //ID_ANAG
private String ragSoc;
private HashSet indis;
// default constructor
//get and set methods
package domain;
public class Indi
private int idIndi; //ID_INDI
private long idAnag; //ID_ENTITA
private String indirizzo; //INDIRIZZO
private Anagrafica anagrafica;
// default constructor
//get and set methods
Anagrafica.jdo:
<?xml version="1.0"?>
<!-- This JDO Metadata file was auto-generated on 08/10/02 17.44.
See http://www.solarmetric.com for Kodo JDO Documentation and examples. -->
<jdo>
<package name="domain">
<class name="Anagrafica"
identity-type="application"
objectid-class="domain.AnagraficaPK">
<extension key="table" value="ANAG" vendor-name="kodo"/>
<extension key="class-column" value="none" vendor-name="kodo"/>
<extension key="lock-column" value="none" vendor-name="kodo"/>
<field name="idAnag" primary-key="true">
<extension key="data-column" value="ID_ANAG"
vendor-name="kodo"/>
</field>
<field name="ragSoc">
<extension key="data-column" value="RAG_SOC"
vendor-name="kodo"/>
</field>
<field name="indis">
<collection element-type="domain.Indi"/>
<extension vendor-name="kodo" key="inverse"
value="anagrafica"/>
</field>
</class>
</package>
</jdo>
Indi.jdo
<?xml version="1.0"?>
<!-- This JDO Metadata file was auto-generated on 08/10/02 17.21.
See http://www.solarmetric.com for Kodo JDO Documentation and examples. -->
<jdo>
<package name="domain">
<class name="Indi"
identity-type="application" objectid-class="domain.IndiPK">
<extension key="table" value="INDI" vendor-name="kodo"/>
<extension key="class-column" value="none" vendor-name="kodo"/>
<extension key="lock-column" value="none" vendor-name="kodo"/>
<field name="idIndi" primary-key="true">
<extension key="data-column" value="ID_INDI"
vendor-name="kodo"/>
</field>
<field name="idAnag">
<extension key="data-column" value="ID_ENTITA"
vendor-name="kodo"/>
</field>
<field name="indirizzo">
<extension key="data-column" value="INDIRIZZO"
vendor-name="kodo"/>
</field>
<field name="anagrafica"/>
</class>
</package>
</jdo>
When I run the test program and I try to insert a new Anagrafica object I
get the exception:
[ C:3974641; S:1673361; T:3317565; D:09/10/02 16.03 ] INSERT INTO
ANAG(ID_ANAG, RAG_SOC) VALUES
(-914917554, 'A NEW RAGSOC')[ C:3974641; S:7389395; T:3317565; D:09/10/02
16.03 ] INSERT INTO
INDI(INDIRIZZO, IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25
dicembre', NULL,
-914917554,0)javax.jdo.JDOFatalDataStoreException:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=INSERT INTO
INDI(INDIRIZZO,
IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25 dicembre', NULL,
-914917554,0)] ORA-00904:
invalid column name
[code=904;state=42000]
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=INSERT INTO
INDI(INDIRIZZO,
IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25 dicembre', NULL,
-914917554, 0)] ORA-00904:
invalid column name
[ C:3974641; T:3317565; D:09/10/02 16.03 ] roll back data store
transaction at
com.solarmetric.kodo.impl.jdbc.runtime.SQLExceptions.throwFatal(SQLExceptions.java:17) at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.insert(JDBCStoreManager.java:421) at
com.solarmetric.kodo.runtime.StateManagerImpl.insert(StateManagerImpl.java:1783) at
com.solarmetric.kodo.runtime.PNewState.flush(PNewState.java:31) at
com.solarmetric.kodo.runtime.StateManagerImpl.flush(StateManagerImpl.java:372) at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:426) at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:295) at
test.AnagraficaJdo.main(AnagraficaJdo.java:49)NestedThrowablesStackTrace:java.sql.SQLException:
ORA-00904: invalid column name
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168) at
oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208) at
oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543) at
oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405) at
oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:822) at
oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1446) at
oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1371) at
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1900) at
oracle.jdbc.driver.OracleStatement.doScrollStmtExecuteQuery(OracleStatement.java:5290) at
oracle.jdbc.driver.OracleStatement.executeUpdate(OracleStatement.java:697) at
com.solarmetric.kodo.impl.jdbc.datasource.StatementImpl.executeUpdate(StatementImpl.java:78) at
com.solarmetric.kodo.impl.jdbc.sql.NonSelectingSQL.execute(NonSelectingSQL.java:40) at
com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.insert(ClassMapping.java:391) at
com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.insert(JDBCStoreManager.java:416) at
com.solarmetric.kodo.runtime.StateManagerImpl.insert(StateManagerImpl.java:1783) at
com.solarmetric.kodo.runtime.PNewState.flush(PNewState.java:31) at
com.solarmetric.kodo.runtime.StateManagerImpl.flush(StateManagerImpl.java:372) at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:426) at
com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:295) at
test.AnagraficaJdo.main(AnagraficaJdo.java:49)
How can I resolve the problem of the presence of IDANAG_ANAGRAFICAX and
have the 1-m relation?
Thank you in advance.
MirkoI've changed the Indi class and the metadata but I still get an exception:
javax.jdo.JDOFatalDataStoreException:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper:
[SQL=INSERT INTO INDI
(INDIRIZZO, IDANAG_ANAGRAFICAX, ID_INDI, IDANAGX) VALUES
('via 25 dicembre', NULL, -847766554, 0)]
ORA-00904: invalid column name
I know I'm missing something but I don't know what.
I can't find any simple example of a one-to-many mapping of two tables on
an existing schema.
The final SQL should be: INSERT INTO INDI(INDIRIZZO, ID_ENTITA, ID_INDI)
VALUES ('via 25 dicembre', -847766554, -847766554)
thank you in advance for help
Fred Lucas wrote:
You should not have both primitive fields for the data in the tables and
relations to other persistence-capable objects. So, your Indi class and
metadata should probably look something like this:
package domain;
public class Indi
private int idIndi; //ID_INDI
private String indirizzo; //INDIRIZZO
private Anagrafica anagrafica;
// default constructor
//get and set methods
Indi.jdo
<?xml version="1.0"?>
<!-- This JDO Metadata file was auto-generated on 08/10/02 17.21.
See http://www.solarmetric.com for Kodo JDO Documentation and examples. -->
<jdo>
<package name="domain">
<class name="Indi"
identity-type="application" objectid-class="domain.IndiPK">
<extension key="table" value="INDI" vendor-name="kodo"/>
<extension key="class-column" value="none" vendor-name="kodo"/>
<extension key="lock-column" value="none" vendor-name="kodo"/>
<field name="idIndi" primary-key="true">
<extension key="data-column" value="ID_INDI"
vendor-name="kodo"/>
</field>
<field name="indirizzo">
<extension key="data-column" value="INDIRIZZO"
vendor-name="kodo"/>
</field>
<field name="anagrafica">
<extension key="data-column" value="ID_ENTITA"
vendor-name="kodo"/>
</field>
</class>
</package>
</jdo>
-Fred
In article <[email protected]>, Mirko wrote:
I'm trying to do an insert in a database using one-to-many mapping.
I have two tables on an existing schema.
The two tables are:
ANAG
| ID_ANAG | RAG_SOC |
|-------------------------|
| 1 | a name |
|-------------------------|
| ... | ..... |
|-------------------------|
INDI
| ID_INDI | ID_ENTITA | INDIRIZZO|
|-------------------------------------------
| 101 | 1 | address 1|
|------------------------------------------|
| 102 | 1 | address 2|
|------------------------------------------|
| 103 | .... | .... |
|------------------------------------------|
One ANAG can have m INDI. Given an ANAG I can find the related INDI(s)
with the relation
ANAG.ID_ANAG=INDI.ID_ENTITA
My two java classes are:
package domain;
import java.util.*;
public class Anagrafica
private int idAnag; //ID_ANAG
private String ragSoc;
private HashSet indis;
// default constructor
//get and set methods
package domain;
public class Indi
private int idIndi; //ID_INDI
private long idAnag; //ID_ENTITA
private String indirizzo; //INDIRIZZO
private Anagrafica anagrafica;
// default constructor
//get and set methods
Anagrafica.jdo:
<?xml version="1.0"?>
<!-- This JDO Metadata file was auto-generated on 08/10/02 17.44.
See http://www.solarmetric.com for Kodo JDO Documentation and examples. -->
<jdo>
<package name="domain">
<class name="Anagrafica"
identity-type="application"
objectid-class="domain.AnagraficaPK">
<extension key="table" value="ANAG" vendor-name="kodo"/>
<extension key="class-column" value="none" vendor-name="kodo"/>
<extension key="lock-column" value="none" vendor-name="kodo"/>
<field name="idAnag" primary-key="true">
<extension key="data-column" value="ID_ANAG"
vendor-name="kodo"/>
</field>
<field name="ragSoc">
<extension key="data-column" value="RAG_SOC"
vendor-name="kodo"/>
</field>
<field name="indis">
<collection element-type="domain.Indi"/>
<extension vendor-name="kodo" key="inverse"
value="anagrafica"/>
</field>
</class>
</package>
</jdo>
Indi.jdo
<?xml version="1.0"?>
<!-- This JDO Metadata file was auto-generated on 08/10/02 17.21.
See http://www.solarmetric.com for Kodo JDO Documentation and examples. -->
<jdo>
<package name="domain">
<class name="Indi"
identity-type="application" objectid-class="domain.IndiPK">
<extension key="table" value="INDI" vendor-name="kodo"/>
<extension key="class-column" value="none" vendor-name="kodo"/>
<extension key="lock-column" value="none" vendor-name="kodo"/>
<field name="idIndi" primary-key="true">
<extension key="data-column" value="ID_INDI"
vendor-name="kodo"/>
</field>
<field name="idAnag">
<extension key="data-column" value="ID_ENTITA"
vendor-name="kodo"/>
</field>
<field name="indirizzo">
<extension key="data-column" value="INDIRIZZO"
vendor-name="kodo"/>
</field>
<field name="anagrafica"/>
</class>
</package>
</jdo>
When I run the test program and I try to insert a new Anagrafica object I
get the exception:
[ C:3974641; S:1673361; T:3317565; D:09/10/02 16.03 ] INSERT INTO
ANAG(ID_ANAG, RAG_SOC) VALUES
(-914917554, 'A NEW RAGSOC')[ C:3974641; S:7389395; T:3317565; D:09/10/02
16.03 ] INSERT INTO
INDI(INDIRIZZO, IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25
dicembre', NULL,
-914917554,0)javax.jdo.JDOFatalDataStoreException:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=INSERT INTO
INDI(INDIRIZZO,
IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25 dicembre', NULL,
-914917554,0)] ORA-00904:
invalid column name
[code=904;state=42000]
NestedThrowables:
com.solarmetric.kodo.impl.jdbc.sql.SQLExceptionWrapper: [SQL=INSERT INTO
INDI(INDIRIZZO,
IDANAG_ANAGRAFICAX, ID_INDI, ID_ENTITA) VALUES ('via 25 dicembre', NULL,
-914917554, 0)] ORA-00904:
invalid column name
[ C:3974641; T:3317565; D:09/10/02 16.03 ] roll back data store
transaction at
com.solarmetric.kodo.impl.jdbc.runtime.SQLExceptions.throwFatal(SQLExceptions.java:17) at
>>
>>
com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.insert(JDBCStoreManager.java:421) at
>>
>>
com.solarmetric.kodo.runtime.StateManagerImpl.insert(StateManagerImpl.java:1783) at
>>
com.solarmetric.kodo.runtime.PNewState.flush(PNewState.java:31) at
com.solarmetric.kodo.runtime.StateManagerImpl.flush(StateManagerImpl.java:372) at
>>
>>
com.solarmetric.kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:426) at
>>
>>
com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:295) at
>>
>>
test.AnagraficaJdo.main(AnagraficaJdo.java:49)NestedThrowablesStackTrace:java.sql.SQLException:
>>
ORA-00904: invalid column name
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168) at
oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208) at
oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543) at
oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405) at
oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:822) at
oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1446) at
>>
>>
oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1371) at
>>
>>
oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1900) at
>>
>>
oracle.jdbc.driver.OracleStatement.doScrollStmtExecuteQuery(OracleStatement.java:5290) at
>>
>>
oracle.jdbc.driver.OracleStatement.executeUpdate(OracleStatement.java:697) at
>>
>>
com.solarmetric.kodo.impl.jdbc.datasource.StatementImpl.executeUpdate(StatementImpl.java:78) at
>>
>>
com.solarmetric.kodo.impl.jdbc.sql.NonSelectingSQL.execute(NonSelectingSQL.java:40) at
>>
>>
com.solarmetric.kodo.impl.jdbc.ormapping.ClassMapping.insert(ClassMapping.java:391) at
>>
>>
com.solarmetric.kodo.impl.jdbc.runtime.JDBCStoreManager.insert(JDBCStoreManager.java:416) at
>>
>>
com.solarmetric.kodo.runtime.StateManagerImpl.insert(StateManagerImpl.java:1783) at
>>
com.solarmetric.kodo.runtime.PNewState.flush(PNewState.java:31) at
com.solarmetric.kodo.runtime.StateManagerImpl.flush(StateManagerImpl.java:372) at
>>
>>
com.solarmetric.kodo.runtime.PersistenceManagerImpl.flush(PersistenceManagerImpl.java:426) at
>>
>>
com.solarmetric.kodo.runtime.PersistenceManagerImpl.commit(PersistenceManagerImpl.java:295) at
>>
test.AnagraficaJdo.main(AnagraficaJdo.java:49)
How can I resolve the problem of the presence of IDANAG_ANAGRAFICAX and
have the 1-m relation?
Thank you in advance.
Mirko
Fred Lucas
SolarMetric Inc.
202-595-2064 x1122
http://www.solarmetric.com -
TL11g & EJB3: One-to-Many problems with removing entity from list
Hi,
I posted this problem on JDev11g forum, but I hope I will get some information here as well.
I have two entities based on tables in HR schema (Departments and Employees). Department has a list of employees. These are the annotations:
@Entity
public class Departments implements Serializable {
@OneToMany(mappedBy = "departments", cascade = {CascadeType.ALL})
private List<Employees> employeesList;
@Entity
public class Employees implements Serializable {
@ManyToOne
@JoinColumn(name = "DEPARTMENT_ID")
private Departments departments;
}On a test page, I have a master-detail tables that show all departments and employees in the selected department (drag&drop from data control), a button that removes selected employee from employeeList iterator, and a button that calls em.merge(department).
The problem is that when I remove some employees from employeeList, on merge, the incoming entity, as well as the return result of the 'merge', are OK (the list doesn't contain the removed entities), but nothing is updated in the database, and no error is shown.
Can anyone help me with this? I can send the test case if anyone is interested.
Thanks,
PedjaThe transaction is Container Managed, but I did try with flushing the changes, but without success. Here is the log:
[TopLink Finest]: 2008.08.06 04:31:25.431--ServerSession(27620915)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Execute query ReadAllQuery(model.Employees)
[TopLink Finest]: 2008.08.06 04:31:25.431--ServerSession(27620915)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--reconnecting to external connection pool
[TopLink Fine]: 2008.08.06 04:31:25.431--ServerSession(27620915)--Connection(21332891)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--SELECT EMPLOYEE_ID, LAST_NAME, COMMISSION_PCT, PHONE_NUMBER, SALARY, HIRE_DATE, FIRST_NAME, EMAIL, JOB_ID, MANAGER_ID, DEPARTMENT_ID FROM EMPLOYEES WHERE (DEPARTMENT_ID = ?)
bind => [20]
[TopLink Finest]: 2008.08.06 04:31:25.431--ServerSession(27620915)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Execute query ReadObjectQuery(model.Employees)
[TopLink Finest]: 2008.08.06 04:31:25.431--ServerSession(27620915)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Execute query ReadObjectQuery(model.Departments)
[TopLink Finest]: 2008.08.06 04:31:25.431--UnitOfWork(14721024)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@3001c6
[TopLink Finest]: 2008.08.06 04:31:25.431--UnitOfWork(14721024)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@1f7d08a
[TopLink Finest]: 2008.08.06 04:31:25.431--UnitOfWork(14721024)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@3001c6
[TopLink Finest]: 2008.08.06 04:31:25.431--UnitOfWork(14721024)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Departments@1b21b91
[TopLink Finer]: 2008.08.06 04:31:36.836--ServerSession(27620915)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--client acquired
[TopLink Finer]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--TX binding to tx mgr, status=STATUS_ACTIVE
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Merge clone with references model.Departments@1c49e79
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@3001c6
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@aa10a9
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Departments@12c0836
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@aa10a9
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Departments@1b21b91
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@3001c6
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@1f7d08a
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Employees@3001c6
[TopLink Finest]: 2008.08.06 04:31:36.836--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Register the existing object model.Departments@1b21b91
[TopLink Finer]: 2008.08.06 04:31:38.711--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--TX beforeCompletion callback, status=STATUS_ACTIVE
[TopLink Finer]: 2008.08.06 04:31:38.711--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--begin unit of work commit
[TopLink Finer]: 2008.08.06 04:31:38.711--ClientSession(2685953)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--TX beginTransaction, status=STATUS_ACTIVE
[TopLink Finest]: 2008.08.06 04:31:38.711--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--Execute query UpdateObjectQuery(model.Departments@776fc0)
[TopLink Finer]: 2008.08.06 04:31:38.711--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--TX afterCompletion callback, status=COMMITTED
[TopLink Finer]: 2008.08.06 04:31:38.805--UnitOfWork(631279)--Thread(Thread[HTTPThreadGroup-1,9,HTTPThreadGroup])--end unit of work commitThanks,
Pedja -
EJB3: One-to-Many problems with removing entity from list
Hi,
I have two entities based on tables in HR schema (Departments and Employees). Department has a list of employees. These are the annotations:
@Entity
public class Departments implements Serializable {
@OneToMany(mappedBy = "departments", cascade = {CascadeType.ALL})
private List<Employees> employeesList;
@Entity
public class Employees implements Serializable {
@ManyToOne
@JoinColumn(name = "DEPARTMENT_ID")
private Departments departments;
}On a test page, I have a master-detail tables that show all departments and employees in the selected department (drag&drop from data control), a button that removes selected employee from employeeList iterator, and a button that calls em.merge(department).
The problem is that when I remove some employees from employeeList, on merge, the incoming entity, as well as the return result of the 'merge', are OK (the list doesn't contain the removed entities), but nothing is updated in the database, and no error is shown.
Can anyone help me with this? I can send the test case if anyone is interested.
Thanks,
PedjaHi,
I have two entities based on tables in HR schema (Departments and Employees). Department has a list of employees. These are the annotations:
@Entity
public class Departments implements Serializable {
@OneToMany(mappedBy = "departments", cascade = {CascadeType.ALL})
private List<Employees> employeesList;
@Entity
public class Employees implements Serializable {
@ManyToOne
@JoinColumn(name = "DEPARTMENT_ID")
private Departments departments;
}On a test page, I have a master-detail tables that show all departments and employees in the selected department (drag&drop from data control), a button that removes selected employee from employeeList iterator, and a button that calls em.merge(department).
The problem is that when I remove some employees from employeeList, on merge, the incoming entity, as well as the return result of the 'merge', are OK (the list doesn't contain the removed entities), but nothing is updated in the database, and no error is shown.
Can anyone help me with this? I can send the test case if anyone is interested.
Thanks,
Pedja -
Hi,
I am haviing a crystal report problem. The problem relates to a one-to-many relationship involving two tables.
I have a similar setup to the following:
I have 2 database tables: table1 & table2
table1 consists of 3 fields:
{id#}, {yes/no},{up/down}
table2 consists of 2 fields:
{id#},
the field can contain any of the following values: 'open', 'closed', 'final', 'complete'.
The problem is that there exist many states to one id#.
I have a bar graph in my report that displays a bar for the count of the{yes/no} field and a bar for the count of the {up/down} field. I want also a bar for the count of when the field = 'final'.
What happens when I write a formula for the field in the second table and place it in the 'show values' section of the chart expert, is the count displayed in each bar on the graph increases significantly. I am assuming this is because there are multiple records in table 2 for each record in table 1.
What I want to happen is that the graph displays bar 1 and bar 2 correctly and then when I put in the formula for the third bar, it simply displays that bar with the count for when the field = 'final'. I dont want it to affect the whole garph.
Has anyone got any suggestions on how I can do this?
I have tried messing around with the distinct records setting in crystal and also by writing an sql query specifying DISTINCT keyword instead of using the select expert, but to no avail.
Please please can someone help me with this issue.
Thank you.
JYou can add a 1-1 query key through the code API in a descriptor amendment method. You could also define a selection criteria on the 1-m mapping to filter the type=2.
Example: (see Foundation Library manual 8-17)
OneToOneQueryKey queryKey = new OneToOneQueryKey();
queryKey.setName("organization");
queryKey.setReferenceClass(Organization.class);
ExpressionBuilder builder = new ExpressionBuilder();
queryKey.setJoinCriteria(builder.getField("ORGANIZATION.ORG_ID").equal(builder.getParameter("RELATIONSHIP.PARENT_ID").and(builder.getParamater("RELATIONSHIP.RELATIONSHIP_TYPE").equal(2)));
relationDescriptor.addQueryKey(queryKey);
Example: (of 1-m mapping with selection criteria)
OneToManyMapping mapping = new OneToManyMapping();
mapping.setReferenceClass(Relation.class);
mapping.setTargetForeignKey("RELATION.PARENT_ID");
ExpressionBuilder builder = new ExpressionBuilder();
mapping.setSelectionCriteria(builder.getField("RELATIONSHIP.PARENT_ID").equal(builder.getParameter("ORGANIZATION.ORG_ID").and(builder.getField("RELATIONSHIP.RELATIONSHIP_TYPE").equal(2)));
orgDescriptor.addMapping(mapping); -
JPA One-To-Many Parent-Child Mapping Problem
I am trying to map an existing legacy Oracle schema that involves a base class table and two subclass tables that are related by a one-to-many relationship which is of a parent-child nature.
The following exception is generated. Can anybody provide a suggestion to fix the problem?
Exception [EclipseLink-45] (Eclipse Persistence Services - 2.0.0.v20091127-r5931): org.eclipse.persistence.exceptions.DescriptorException
Exception Description: Missing mapping for field [BASE_OBJECT.SAMPLE_ID].
Descriptor: RelationalDescriptor(domain.example.entity.Sample --> [DatabaseTable(BASE_OBJECT), DatabaseTable(SAMPLE)])
The schema is as follows:
CREATE TABLE BASE_OBJECT(
"BASE_OBJECT_ID" INTEGER PRIMARY KEY NOT NULL,
"NAME" VARCHAR2(128) NOT NULL,
"DESCRIPTION" CLOB NOT NULL,
"BASE_OBJECT_KIND" NUMBER(5,0) NOT NULL );
CREATE TABLE SAMPLE(
"SAMPLE_ID" INTEGER PRIMARY KEY NOT NULL,
"SAMPLE_TEXT" VARCHAR2(128) NOT NULL )
CREATE TABLE SAMPLE_ITEM(
"SAMPLE_ITEM_ID" INTEGER PRIMARY KEY NOT NULL,
"SAMPLE_ID" INTEGER NOT NULL,
"QUANTITY" INTEGER NOT NULL )
The entities are related as follows:
SAMPLE.SAMPLE_ID -> BASE_OBJECT.BASE_OBJECT_ID - The PKs that are used to join the sample to the base class
SAMPLE_ITEM.SAMPLE_ITEM_ID -> BASE_OBJECT.BASE_OBJECT_ID - The PKs that are used to join the sample item to the base class
SAMPLE_ITEM.SAMPLE_ID -> SAMPLE.SAMPLE_ID - The FK that is used to join the sample item to the sample class as a child of the parent.
SAMPLE is one to many SAMPLE_ITEM
The entity classes are as follows:
@Entity
@Table( name = "BASE_OBJECT" )
@Inheritance( strategy = InheritanceType.JOINED )
@DiscriminatorColumn( name = "BASE_KIND", discriminatorType = DiscriminatorType.INTEGER )
@DiscriminatorValue( "1" )
public class BaseObject
extends SoaEntity
@Id
@GeneratedValue( strategy = GenerationType.SEQUENCE, generator = "BaseObjectIdSeqGen" )
@SequenceGenerator( name = "BaseObjectIdSeqGen", sequenceName = "BASE_OBJECT_PK_SEQ", allocationSize = 1 )
@Column( name = "BASE_ID" )
private long baseObjectId = 0;
@Entity
@Table( name = "SAMPLE" )
@PrimaryKeyJoinColumn( name = "SAMPLE_ID" )
@AttributeOverride(name="baseObjectId", column=@Column(name="SAMPLE_ID"))
@DiscriminatorValue( "2" )
public class Sample
extends BaseObject
@OneToMany( cascade = CascadeType.ALL )
@JoinColumn(name="SAMPLE_ID",referencedColumnName="SAMPLE_ID")
private List<SampleItem> sampleItem = new LinkedList<SampleItem>();
@Entity
@Table( name = "SAMPLE_ITEM" )
@PrimaryKeyJoinColumn( name = "SAMPLE_ITEM_ID" )
@AttributeOverride(name="baseObjectId", column=@Column(name="SAMPLE_ITEM_ID"))
@DiscriminatorValue( "3" )
public class SampleItem
extends BaseObject
@Basic( optional = false )
@Column( name = "SAMPLE_ID" )
private long sampleId = 0;
Edited by: Chris-R on Mar 2, 2010 4:45 PMThanks for the thoroughness. There was a mistake in moving the code over for the forum. The field names are correct throughout the original source code.
BASE_OBJECT_ID is used throughout.
I suspect the problem lies in the one-to-many sampleItem(s) relationship that is based upon the subclassed item class. (The relationship is actually "sampleItems" in the real code and somehow got changed in the move over.)
The problem may lie in the mapping of the attribute override in the child class to the referencing of the item class from the parent side of the relationship in the Sample class.
I further suspect this may be specific to Eclipselink based upon other postings I've seen on the web that have similar problems...
Any thoughts?
Edited by: Chris-R on Mar 3, 2010 9:56 AM -
Aggregate one-to-many relationship problem
Hello,
After migrating from Toplink 9i I've stumbled across a problem with our aggregate objects.
Toplink Workbench reports no errors and generates a nice XML but in runtime I get this error whenever a aggregate function is used.
[TopLink fin]: 2008.02.13 03:18:11.552--ServerSession(12626425)--Connection(29948747)--Thread(Thread[main,5,main])--SELECT DISTINCT t0.NPL_PACK_ID, t0.NPL_ID FROM NPL_MEDPROD t3, FASS_MEDPROD t2, NPL_MEDPROD t1, NPL_PACKAGE t0 WHERE (((t0.NPL_ID = t1._Presentation->NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test) AND ((t1.NPL_ID = t2.NPL_ID) AND (t3.NPL_ID LIKE '19750613000031%'))) AND (t3.NPL_ID = t2.NPL_ID))
Caused by: Undantag [TOPLINK-4002] (Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)): oracle.toplink.exceptions.DatabaseException
Internt undantag: java.sql.SQLException: ORA-00911: invalid character
Felkod: 911
I belive that problem resides in this clause :
t1._Presentation->NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test
I've created a small test project with just a couple of classes but the same aggregate problem occurs which has let me to believe the problem does not come from the migrating process which was my first guess. If anyone could help me discover what I am doing wrong it would be very appreciated. Below is my test project output.
<?xml version="1.0" encoding="UTF-8"?>
<toplink:object-persistence version="Oracle TopLink - 10g Release 3 (10.1.3.1.0) (Build 061004)" xmlns:opm="http://xmlns.oracle.com/ias/xsds/opm" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:toplink="http://xmlns.oracle.com/ias/xsds/toplink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<opm:name>test</opm:name>
<opm:class-mapping-descriptors>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>se.lif.fass.fassdata.impl.FASSMedProdImpl</opm:class>
<opm:alias>FASSMedProdImpl</opm:alias>
<opm:primary-key>
<opm:field table="FASS_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:one-to-one-mapping">
<opm:attribute-name>_Medprod</opm:attribute-name>
<opm:reference-class>schemas_npl.instance.impl.MedprodTypeImpl</opm:reference-class>
<opm:private-owned>true</opm:private-owned>
<opm:foreign-key>
<opm:field-reference>
<opm:source-field table="FASS_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
<opm:target-field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:field-reference>
</opm:foreign-key>
<opm:foreign-key-fields>
<opm:field table="FASS_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:foreign-key-fields>
<toplink:batch-reading>true</toplink:batch-reading>
<toplink:selection-query xsi:type="toplink:read-object-query"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:read-only>true</opm:read-only>
<opm:field table="FASS_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="FASS_MEDPROD"/>
</toplink:tables>
</opm:class-mapping-descriptor>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>schemas_npl.instance.impl.MedprodTypeImpl</opm:class>
<opm:alias>MedprodTypeImpl</opm:alias>
<opm:primary-key>
<opm:field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:aggregate-object-mapping">
<opm:attribute-name>_Medprodpack</opm:attribute-name>
<toplink:reference-class>schemas_npl.instance.impl.MedprodTypeImpl$MedprodpackTypeImpl</toplink:reference-class>
<toplink:allow-null>false</toplink:allow-null>
<toplink:field-translations>
<toplink:field-translation>
<toplink:source-field name="_Presentation->NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test" xsi:type="opm:column"/>
<toplink:target-field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</toplink:field-translation>
</toplink:field-translations>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>_Nplid</opm:attribute-name>
<opm:field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:read-only>true</opm:read-only>
<opm:field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="NPL_MEDPROD"/>
</toplink:tables>
</opm:class-mapping-descriptor>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>schemas_npl.instance.impl.MedprodTypeImpl$MedprodpackTypeImpl</opm:class>
<opm:alias>MedprodTypeImpl$MedprodpackTypeImpl</opm:alias>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:one-to-many-mapping">
<opm:attribute-name>_Presentation</opm:attribute-name>
<opm:reference-class>schemas_npl.instance.impl.MedprodTypeImpl$MedprodpackTypeImpl$PresentationTypeImpl</opm:reference-class>
<opm:private-owned>true</opm:private-owned>
<opm:target-foreign-key>
<opm:field-reference>
<opm:source-field table="NPL_PACKAGE" name="NPL_ID" xsi:type="opm:column"/>
<opm:target-field name="_Presentation->NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test" xsi:type="opm:column"/>
</opm:field-reference>
</opm:target-foreign-key>
<toplink:batch-reading>true</toplink:batch-reading>
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>com.sun.xml.bind.util.ListImpl</toplink:collection-type>
</toplink:container>
<toplink:selection-query xsi:type="toplink:read-all-query">
<toplink:container xsi:type="toplink:list-container-policy">
<toplink:collection-type>com.sun.xml.bind.util.ListImpl</toplink:collection-type>
</toplink:container>
</toplink:selection-query>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>aggregate</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
</opm:class-mapping-descriptor>
<opm:class-mapping-descriptor xsi:type="toplink:relational-class-mapping-descriptor">
<opm:class>schemas_npl.instance.impl.MedprodTypeImpl$MedprodpackTypeImpl$PresentationTypeImpl</opm:class>
<opm:alias>MedprodTypeImpl$MedprodpackTypeImpl$PresentationTypeImpl</opm:alias>
<opm:primary-key>
<opm:field table="NPL_PACKAGE" name="NPL_PACK_ID" xsi:type="opm:column"/>
</opm:primary-key>
<opm:events xsi:type="toplink:event-policy"/>
<opm:querying xsi:type="toplink:query-policy"/>
<opm:attribute-mappings>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>_Nplpackid</opm:attribute-name>
<opm:field table="NPL_PACKAGE" name="NPL_PACK_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:one-to-one-mapping">
<opm:attribute-name>backref</opm:attribute-name>
<opm:reference-class>schemas_npl.instance.impl.MedprodTypeImpl</opm:reference-class>
<opm:foreign-key>
<opm:field-reference>
<opm:source-field table="NPL_PACKAGE" name="NPL_ID" xsi:type="opm:column"/>
<opm:target-field table="NPL_MEDPROD" name="NPL_ID" xsi:type="opm:column"/>
</opm:field-reference>
</opm:foreign-key>
<opm:foreign-key-fields>
<opm:field table="NPL_PACKAGE" name="NPL_ID" xsi:type="opm:column"/>
</opm:foreign-key-fields>
<toplink:indirection xsi:type="toplink:value-holder-indirection-policy"/>
<toplink:selection-query xsi:type="toplink:read-object-query"/>
</opm:attribute-mapping>
<opm:attribute-mapping xsi:type="toplink:direct-mapping">
<opm:attribute-name>id</opm:attribute-name>
<opm:read-only>true</opm:read-only>
<opm:field table="NPL_PACKAGE" name="NPL_ID" xsi:type="opm:column"/>
</opm:attribute-mapping>
</opm:attribute-mappings>
<toplink:descriptor-type>independent</toplink:descriptor-type>
<toplink:instantiation/>
<toplink:copying xsi:type="toplink:instantiation-copy-policy"/>
<toplink:change-policy xsi:type="toplink:deferred-detection-change-policy"/>
<toplink:tables>
<toplink:table name="NPL_PACKAGE"/>
</toplink:tables>
</opm:class-mapping-descriptor>
</opm:class-mapping-descriptors>
<toplink:login xsi:type="toplink:database-login">
<toplink:platform-class>oracle.toplink.platform.database.oracle.Oracle8Platform</toplink:platform-class>
<toplink:user-name>fassadmin</toplink:user-name>
<toplink:password>3CC3773C96563CA0C89634305615359CD62D1A19DF561D1E</toplink:password>
<toplink:driver-class>oracle.jdbc.driver.OracleDriver</toplink:driver-class>
<toplink:connection-url>jdbc:oracle:oci8:@DB2</toplink:connection-url>
</toplink:login>
</toplink:object-persistence>
Regards
/JonasThe issue is in the one-to-many mapping in the aggregate,
<br>
<opm:attribute-mapping xsi:type="toplink:one-to-many-mapping">
<opm:attribute-name>_Presentation</opm:attribute-name>
<opm:reference-class>schemas_npl.instance.impl.MedprodTypeImpl$MedprodpackTypeImpl$PresentationTypeImpl</opm:reference-class>
<opm:private-owned>true</opm:private-owned>
<opm:target-foreign-key>
<opm:field-reference>
<opm:source-field table="NPL_PACKAGE" name="NPL_ID" xsi:type="opm:column"/>
<opm:target-field name="_Presentation->NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test" xsi:type="opm:column"/>
</opm:field-reference>
</opm:target-foreign-key>There is an issue with the Mapping Workbench and shared aggregates with one-to-many mappings and translating the foreign key fields. Did this work before, I would be surprized if it did, unless the 2.5 Builder was used?
Anyway the easiest workaround is to either edit the XML and change the NPL_ID_IN_REFERENCE_NPL_PACKAGE_NPL_MEDPROD_Test column name to what it should be, or define a descriptor amendment method to define the one-to-many mapping with the correct field names.
-- James : EclipseLink -
In my JPA project I'm using these three classes:
Cart.java:
package com.spinnaker.pedja;
import java.sql.Date;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;
import javax.persistence.*;
@Entity(name = "Cart")
@Table(schema = "shop")
public class Cart {
@Id
@Column(name = "cart_id")
private int Cart_id;
@Column(name = "cart_date")
private Date date;
@OneToMany(mappedBy = "cartItemPK", targetEntity = CartItemPK.class)
private Set cartitemCollection = new HashSet(0);
@ManyToOne
@JoinColumn(name = "customer_id")
private Customer customer;
public Customer getCustomer() {
return customer;
public void setCustomer(Customer customer) {
this.customer = customer;
public Cart() {
public Set getCartitemCollection() {
return cartitemCollection;
public void setCartitemCollection(Set cartitemCollection) {
this.cartitemCollection = cartitemCollection;
public int getCart_id() {
return Cart_id;
public void setCart_id(int cart_id) {
this.Cart_id = cart_id;
public Date getDate() {
return date;
public void setDate(Date date) {
this.date = date;
}, CartItem.java:
package com.spinnaker.pedja;
import java.io.Serializable;
import javax.persistence.*;
@Entity
@Table(schema = "shop")
public class CartItem implements Serializable {
@EmbeddedId
@ManyToOne
// @JoinColumn(name = "cart_id")
CartItemPK cartItemPK;
@Column(name = "quantity")
private int quantity;
@Column(name = "unit_price")
private double unit_price;
// @JoinColumn(name = "cart_id")
// private Cart cart;
// public Cart getCart() {
// return cart;
// public void setCart(Cart cart) {
// this.cart = cart;
public CartItem() {
public CartItemPK getCartItemPK() {
return cartItemPK;
public void setCartItemPK(CartItemPK cartItemPK) {
this.cartItemPK = cartItemPK;
public int getQuantity() {
return quantity;
public void setQuantity(int quantity) {
this.quantity = quantity;
public double getUnit_price() {
return unit_price;
public void setUnit_price(double unit_price) {
this.unit_price = unit_price;
}and CartItemPK.java:
package com.spinnaker.pedja;
import java.io.Serializable;
import javax.persistence.*;
@Table(schema="shop")
@Embeddable
public class CartItemPK implements Serializable{
@Column(name="item_id",nullable=false)
private int itemId;
// @ManyToOne
// @JoinColumn(name = "cart_id")
// private Cart cart;
@Column(name="cart_id",nullable=false)
private int cartId;
public int getItemId() {
return itemId;
public void setItemId(int itemId) {
this.itemId = itemId;
public int getCartId() {
return cartId;
public void setCartId(int cartId) {
this.cartId = cartId;
I'm having problem with mapping one to many relationship between Cart and CartItem.I had to introduce CartItemPK class because CartItem has composite primary key.Help please!!!In my test class I'm using this code:
Cart cart=em.find(Cart.class, 33);
Set cartItems=cart.getCartitemCollection();
for (Iterator iterator = cartItems.iterator(); iterator.hasNext();) {
CartItem cart_item = (CartItem) iterator.next();
System.out.println(cart_item.getCartItemPK().getCartId());
}and this error happens:
Exception in thread "main" javax.persistence.PersistenceException: org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: com.spinnaker.pedja.Cart.cartitemCollection[com.spinnaker.pedja.CartItemPK]
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:247)
at org.hibernate.ejb.HibernatePersistence.createEntityManagerFactory(HibernatePersistence.java:120)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:159)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:95)
at com.spinnaker.pedja.test.Test.main(Test.java:30)
Caused by: org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: com.spinnaker.pedja.Cart.cartitemCollection[com.spinnaker.pedja.CartItemPK]
at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:979)
at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:530)
at org.hibernate.cfg.annotations.CollectionBinder$1.secondPass(CollectionBinder.java:471)
at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:43)
at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1136)
at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:296)
at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1121)
at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1211)
at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:154)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:847)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:178)
at org.hibernate.ejb.Ejb3Configuration.configure(Ejb3Configuration.java:235)
... 4 more
I didn't find any example on the internet about my particular case.In the database,Cart and CartItem are conected via cart_id field.But in my JPA project,cart_id field is a part of a composite key CarItemPK. -
I am really disapointed with my MacBook Air. I bought it around two years ago and every three months I need to do something to fix it. First was my source, it did not work and need to buy a new one after searched in 5 shops in Brasília/ Brazil. After this was the screen, full of waves and dark spots. Next was the keyboard which went out of order and I need to change by a new one (20 days waiting for the service in Goiânia/Brazil). Now was the battery, which is not charging! And the support told me to change and more 20 days waiting for the repair. When I bought my first Mac I really think that I never have so many problems. Anyone has the same issues?
Best
JanineYour dsplay is getting extended onto the external monitor. Chcnage the setting to duplicate it or only display on the external monitor and you should be fine,
Let me know if this worked for you. -
One-to-many relationship: problem with several tables on the one side...
Hello
I'm having problems developing a database for a content management system. Apart from details, I've got one main table, that holds the tree structure of the content ("resources") and several other tables that contain data of a particular datatype ("documents", "images", etc.). Now, there's one-to-many relationship between "resources" table and all the datatype tables - that is, in the "resources" table there's "resource_id" column, being a foreign key referenced to the "id" columns in the datatype tables.
The problem is that this design is deficient. I can't tell form the "resource_id" column from which datatype table to get the data. It seems to me that one-to-many relationship only works with two tables. If the data on the one side of the relationship is contained in several tables, problems arise.
Anybody knows a solution? I would be obliged.
Regards
HavocadoHi;
A simple way may be create a view on referenced tables:
Connected to Oracle Database 10g Express Edition Release 10.2.0.1.0
Connected as hr
SQL>
SQL> drop table resources;
Table dropped
SQL> create table resources(id number, name varchar2(12));
Table created
SQL> insert into resources values(1,'Doc....');
1 row inserted
SQL> insert into resources values(2,'Img....');
1 row inserted
SQL> drop table documents;
Table dropped
SQL> create table documents(id number, resource_id number,type varchar2(12));
Table created
SQL> insert into documents values(1,1,'txt');
1 row inserted
SQL> drop table images;
Table dropped
SQL> create table images(id number, resource_id number,path varchar2(24));
Table created
SQL> insert into images values(1,2,'/data01/images/img01.jpg');
1 row inserted
SQL> create or replace view vw_resource_ref as
2 select id, resource_id, type, null as path from documents
3 union
4 select id, resource_id, null as type, path from images;
View created
SQL> select * from resources r inner join vw_resource_ref rv on r.id = rv.resource_id;
ID NAME ID RESOURCE_ID TYPE PATH
1 Doc.... 1 1 txt
2 Img.... 1 2 /data01/images/img01.jpg
SQL> Regards.... -
One-to-many relationships problem
Hi,
I'm having some problems with one-to-many relationships.
I've a two way relationship beetwen Person and Document.
Person has a collection of Documents (1-n).
Document has an instance for Person.
In my database schema Document has a FK for person.
The problem occurs when I'm trying to save the Person object
with a collection of Documents.
Oracle gives me the following message:
ORA-00001: unique constraint (SMS.PK_PERSON) violated
In my kodo.properties file I put:
kodo.jdbc.ForeignKeyConstraints: true
It seems that when the collection of Documents is persisted, kodo tries to
save a new Person object for each Document.
When I have just one instance of Document in my collection kodo persists
it ok, but when I have move instances I get
that problem.
Can somebody help me?
Thanks in advance,
Joan CaffeeYou need to make sure each Document references the same Person object in
the JVM. JDO persists your object model as-is. Each distinct JVM
object becomes a distinct database record. You can't have multiple JVM
objects in the same PersistenceManager representing the same database
record. -
I am trying to get Container Managed Relationships working with Oracle Application Server. I am sure that the problem it quite obvious to anyone who has got this working before, but after carefully following numerous examples, I still cant get them to work. I have various issues including the application server blocking when it calls the getB() method in "A" to populate the items from table "B", even though the generated SQL looks okay e.g., "select B_PK from B where (b_fk = 1)".
I would be extremely grateful if you could point out my (hopefully obvious) mistake as I wrestled with it for the past couple of weeks.
Any ideas?
Cheers,
Jonathan
I have two tables A and B; A has a one-to-many relationship with B:
Table A:
A_PK (primary key)
A_NAME
Table B:
B_PK (primary key)
B_NAME
B_FK (foreign key to table A)
My ejb-jar.xml file is:
<ejb-jar>
<enterprise-beans>
<entity>
<description>Entity Bean ( CMP )</description>
<display-name>A</display-name>
<ejb-name>A</ejb-name>
<home>mypackage1.AHome</home>
<remote>mypackage1.A</remote>
<local-home>mypackage1.ALocalHome</local-home>
<local>mypackage1.ALocal</local>
<ejb-class>mypackage1.impl.ABean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.Long</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>A</abstract-schema-name>
<cmp-field><field-name>a_pk</field-name></cmp-field>
<cmp-field><field-name>a_name</field-name></cmp-field>
<primkey-field>a_pk</primkey-field>
</entity>
<entity>
<description>Entity Bean ( CMP )</description>
<display-name>B</display-name>
<ejb-name>B</ejb-name>
<home>mypackage1.BHome</home>
<remote>mypackage1.B</remote>
<local-home>mypackage1.BLocalHome</local-home>
<local>mypackage1.BLocal</local>
<ejb-class>mypackage1.impl.BBean</ejb-class>
<persistence-type>Container</persistence-type>
<prim-key-class>java.lang.Long</prim-key-class>
<reentrant>False</reentrant>
<cmp-version>2.x</cmp-version>
<abstract-schema-name>B</abstract-schema-name>
<cmp-field><field-name>b_pk</field-name></cmp-field>
<cmp-field><field-name>b_name</field-name></cmp-field>
<cmp-field><field-name>b_fk</field-name></cmp-field>
<primkey-field>b_pk</primkey-field>
</entity>
</enterprise-beans>
<relationships>
<ejb-relation>
<ejb-relation-name>A-B</ejb-relation-name>
<ejb-relationship-role>
<multiplicity>One</multiplicity>
<cascade-delete/>
<relationship-role-source>
<ejb-name>A</ejb-name>
</relationship-role-source>
<cmr-field>
<cmr-field-name>b</cmr-field-name>
<cmr-field-type>java.util.Collection</cmr-field-type>
</cmr-field>
</ejb-relationship-role>
<ejb-relationship-role>
<multiplicity>Many</multiplicity>
<relationship-role-source>
<ejb-name>B</ejb-name>
</relationship-role-source>
</ejb-relationship-role>
</ejb-relation>
</relationships>
</ejb-jar>
And my orion-ejb-jar.xml file is:
<?xml version = '1.0' encoding = 'windows-1252'?>
<!DOCTYPE orion-ejb-jar PUBLIC "-//Evermind//DTD Enterprise JavaBeans 1.1 runtime//EN" "http://xmlns.oracle.com/ias/dtds/orion-ejb-jar.dtd">
<orion-ejb-jar>
<enterprise-beans>
<entity-deployment name="A" copy-by-value="false" data-source="jdbc/Connection1DS" exclusive-write-access="false" table="a">
<primkey-mapping>
<cmp-field-mapping name="a_pk" persistence-name="a_pk"
persistence-type="int(11)"/>
</primkey-mapping>
<cmp-field-mapping name="a_pk" persistence-name="a_pk"
persistence-type="int(11)"/>
<cmp-field-mapping name="a_name" persistence-name="a_name"
persistence-type="varchar(100)"/>
<cmp-field-mapping name="b">
<collection-mapping table="B">
<primkey-mapping>
<cmp-field-mapping name="b_fk" persistence-name="B_FK"/>
</primkey-mapping>
<value-mapping type="mypackage1.BLocal">
<cmp-field-mapping>
<entity-ref home="B">
<cmp-field-mapping name="b_pk" persistence-name="B_PK"/>
</entity-ref>
</cmp-field-mapping>
</value-mapping>
</collection-mapping>
</cmp-field-mapping>
</entity-deployment>
<entity-deployment name="B" copy-by-value="false" data-source="jdbc/Connection1DS" exclusive-write-access="false" table="b">
<primkey-mapping>
<cmp-field-mapping name="b_pk" persistence-name="b_pk"
persistence-type="int(11)"/>
</primkey-mapping>
<cmp-field-mapping name="b_pk"
persistence-name="b_pk" persistence-type="int(11)"/>
<cmp-field-mapping name="b_fk" persistence-name="b_fk"
persistence-type="int(11)"/>
</entity-deployment>
</enterprise-beans>
<assembly-descriptor>
<default-method-access>
<security-role-mapping impliesAll="true" name="<default-ejb-caller-role>"/>
</default-method-access>
</assembly-descriptor>
</orion-ejb-jar>Ok, I found out something strange. If I do the addPet operation twice in the client the new relationship is created, too.
p = home.create("Violetta");
p.addNewPet("Jenny");
p = home.create("Frank");
p.addPet("Jenny");
p.addPet("Jenny");
May this be a timing problem? Or is there a command I could execute to ensure all data manipulation is populated to the DB. (Like close() in JDBC)
TIA
Frank -
One to many mappings delete problem
in using Toplink 9.0.3, I have modeled a simple one to many relationships and have ran into errors on deletion.
The following is an object model that fails to delete
diagram has one to many companies ( privately held )
companies have one to many ownerships ( privately held )
ownerships have a one to one to an owner company and an owned company ( not privately held ).
In the simplest scenario, Toplink knows how to delete a diagram. It will delete an ownership, then delete the companies and then delete the diagram.
However in a diagram where a company owns two companies, Toplink fails. It attempts to delete an owned company before deleting the parent Ownership.
Note that if toplink deleted the owner company then, it would know to delete the many ownerships first.
How do we tell toplink that on deleting a company,
1. delete all the ownerships in its one to many
2. and delete all the ownerships in which the company
plays the role as an owned company.
Note that deleting an ownership should not trigger a deletion of either the owner company or the owned company.
please contact at [email protected]Hello,
You appear to be missing a mapping in your object model.
TopLink decides its commit order, for both insertions and deletions based on the ONE TO ONE mappings in a project.
It appears that your company has no ONE TO ONE mapping to the diagram, which means that TopLink MAY decide to delete diagrams before it deletes companies.
I would suggest that you try adding a one to one mapping from company to diagram, correctly populated, and see if the problem recurs.
I hope this is of some help,
Christian -
Persistence and transactions: One-to-many consistency problem
Hi,
we have the following problem: We have two persistent classes A and B that are connected via a one-to-many (1:n) relationship. Now we
1. get an object "a" of class A and a number of related objects of class B from the persistence manager. Then we
3. delete the relationship between "a" and one object of class B. Then (without commit)
4. the GUI requests to show all related Bs for our given "a" and:
5. the query returns also the "deleted" object.
All these steps are performed within the same (object oriented) top level transaction.
The reason for this seems clear to us: The removal of the B has not been persisted in the DB. However, we don't really know how to deal with it...
Any suggestion is welcome.
ChristophHi Chris,
it is unclear to me if you are re-reading the database after you delete the 'b' item.
Anyway, the way persistent objects work is that changes are not written to the database until the SAP LUW ends with a COMMIT WORK.
Cheers
Graham Robbo -
I an one of many who were frustrated at the loss of visible keywords in iPhoto in Lion. Will the new Mountain Lion solve this problem?
I'm not sure whether we are quite talking about the same thing?
With iPhoto in OSX 10.4.11 all the keywords were visible in the iPhoto library. When I moved my photos to a computer with Lion I lost this feature, there was a lot of discussion at the time about this being a backward step by Apple. So I wondered whether the Mountain Lion version of iPhoto has restored this feature? -
Context Problem when using Use One As Many
Hi SapGuru's.
i have got a requirement in an IDOC To File Interface where the segments in the IDOC are like E1LFA1M->E1LFM1M->E1WYT3M
THE Test data is like below
<?xml version="1.0" encoding="UTF-8"?>
<ns0:IDOC_Test_Mt xmlns:ns0="urn:sap.shoprite.co.za:ecc.md">
<ZCREMAS>
<IDOC>
<E1LFA1M>
<LIFNR>0000641065</LIFNR>
<E1LFM1M>
<EKORG>1001</EKORG>
<E1WYT3M>
<PARVW>BA</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>LF</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>RS</PARVW>
</E1WYT3M>
</E1LFM1M>
</E1LFA1M>
<E1LFA1M>
<LIFNR>0000641065</LIFNR>
<E1LFM1M>
<EKORG>1002</EKORG>
<E1WYT3M>
<PARVW>BA</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>RS</PARVW>
</E1WYT3M>
</E1LFM1M>
</E1LFA1M>
<E1LFA1M>
<LIFNR>0000641065</LIFNR>
1002
</E1LFA1M>
<E1LFA1M>
<LIFNR>0000641065</LIFNR>
<E1LFM1M>
<EKORG>1004</EKORG>
<E1WYT3M>
<PARVW>BA</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>LF</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>RS</PARVW>
</E1WYT3M>
</E1LFM1M>
<E1LFM1M>
<EKORG>1005</EKORG>
<E1WYT3M>
<PARVW>BA</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>LF</PARVW>
</E1WYT3M>
<E1WYT3M>
<PARVW>RS</PARVW>
</E1WYT3M>
</E1LFM1M>
</E1LFA1M>
</IDOC>
</ZCREMAS>
</ns0:IDOC_Test_Mt>
the Target xsd is like below :
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema targetNamespace="urn:sap.shoprite.co.za:demo.trans" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="urn:sap.shoprite.co.za:demo.trans" xmlns:p1="urn:sap.shoprite.co.za:bluecube">
<xsd:import namespace="urn:sap.shoprite.co.za:bluecube"/>
<xsd:element name="Vendor_masterTest1" type="p1:Vendor_masterTest"/>
</xsd:schema>
the EKORG Field from source is mapping to Purchase Organisation(field) in target file .
so here when i use one as many and iam mapping EKORG->MAP WITH DEFAULT ->USE ONE AS MANY and as in the above test data if there are multiple E1LFM1M's the first paramter of Use one as many is getting 2 ekorg's in only one context but here i want them to be created on separate context(please have a look at 4th E1LFA1M in the test data to get clear idea.
can any of you help me in this.
regards.
VarmaHi,
Try this.
Source Code:
IDOC
--->E1LFA1M
-->E1LFM1M
--> EKORG = 1000
--> E1WYT3M
--> E1WYT3M
-->E1LFM1M
-->E1LFM1M
--> EKORG = 1001
--> E1WYT3M
--> E1WYT3M
-->E1LFM1M
--> EKORG = 1006
--> E1WYT3M
--> E1WYT3M
Output:
<?xml version="1.0" encoding="UTF-8"?>
<ns0:target xmlns:ns0="http://test">
<Data>
<M>1000</M>
</Data>
<Data>
<M>1000</M>
</Data>
<Data>
<M></M>
</Data>
<Data>
<M>1001</M>
</Data>
<Data>
<M>1001</M>
</Data>
<Data>
<M>1006</M>
</Data>
<Data>
<M>1006</M>
</Data>
</ns0:target>
Use below Mapping:
Use If then Else Function.
1. If condition: E1WYT3M Exists
2. Then pass E1WYT3M
3. Else Pass E1LFM1M with "Map with Default"
Lets Consider Output of this step as "A".
Use One As Many.
First Input: E1LFM1M to exists to Split By Each Value
Second and Third Input will be Out Put of "A" (Above Step).
Lets Consider Out put of this Step as "B"
Use If without Else.
If "B" is true then pass "A" to exists.
Out put of this to Remove context to Target Vendor Master Node. In my sample it will be Node "Data"
Now for Mapping of Field Purch Org/In my case field "M"
Use If without Else.
If "B" is true then Pass "C". Output of this to Split by each value to target.
For C:
Use if then else
if E1WYT3M exists then pass EKORG else pass constant blank.
Hope its clear!!
-Gouri
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