Warning: Entity participates in more than one composition association

Hi,
I am having a scenario...
Where I have 3 tables..
1.Employee - Id(Sequence),FName,LName,AddressId(FK),TelephoneId(FK)
2.Address- Id(Sequence),City,State
3.Telephone- Id(Sequence),Office_No,Mobile_No
I need to create a VO - UserDetailsVO which has all attributes from these tables
I should have a form which has all the fields like FName,LName,City,State,Office_No,Mobile_No..
and one commit it should update my Foreign Keys in Employee table with the AddressId and TelephoneId.
It will be more helpful if you can guide me with sample tutorial for this scenario..
It works when I tried for updating with one relationship(I added the behaviour composition association in my Association),
But when I added another relationship,It was showing me "Warning: Entity EmployeesEO participates in more than one composition association. This will require custom composition management in your application for secondary masters."
Please help me how to handle this kind of scenario..
Thanks

Any thoughts about this guys?

Similar Messages

I accidently closed my window with all my app tabs, now the only window that opens was a 2nd one I had open. How do I get back all my app tabs from the previous window, and why didn't it give me the usual warning you are closing more than one tab?

I accidently closed the window with all my frequently used app tabs, now the only window that opens was an extra one I had opened. How do I get back all my app tabs from the previous window, and why didn't it give me the usual warning you are closing more than one tab? edit
Details

Then the (App) tabs from that window are lost unless you can restore an older copy of the sessionstore.js file (Time Machine?) that has that lost window.
*http://kb.mozillazine.org/sessionstore.js

Entity bean for more than one table

Can an entity bean represent more than one phyical table in the database? (i.e. span tables) If so, how is it coded up?

Yes, probably either using BMP entity beans, or creating a database view of the two tables.
However, the actual implementation depends a lot on your database and EJB container. Since I didn't see any details of these in your post, I suggest you research the documentation for both your EJB container and database.
[Of-course, I'm assuming that you are already using a database and EJB container :-]
Are you familiar with the following Web sites:
http://java.sun.com/j2ee/tutorial/1_3-fcs/
http://www.theserverside.com
Have you read the specification?
http://java.sun.com/j2ee/download.html
Hope this helps.
Good Luck,
Avi.

Persisting CMP bean over more than one table

Hello,
I was wondering if it is possible to persist an Entity Bean over more than
one table using CMP. For example 3 attributes go in table A and 2 attributes
go in table B.
I can see this might come in handy when having some kind of inheritance in
your architecture.
Thanks,
Rein Reezigt

CMP are based on one DB object however object could be a database table or a
view. You can create a view and base your bean on that view. This is mostly
useful for read-only entity beans that just do select queries because databases
have all kind of different restrictions on update froma view, ( for example
ORACLE allows update to only one table in view). However in case you need a
logical abstraction of multiple tables, consider EJB2.0 relations or a product
like toplink for your object to relational mapping.
Viresh Garg
Principal Developer Relations Engineer
BEA Systems
Rein Reezigt wrote:
Hello,
I was wondering if it is possible to persist an Entity Bean over more than
one table using CMP. For example 3 attributes go in table A and 2 attributes
go in table B.
I can see this might come in handy when having some kind of inheritance in
your architecture.
Thanks,
Rein Reezigt

Why won't Index tags that are associated with more than one topic work on a Mac?

I used RoboHelp 8 to generate a project for PCs and Macs. An index entry ("documentation", in the following examples) is associated with two topics. If I click that index entry in the output on a PC, the appropriate topic links appear and I can jump to the topics. On a Mac, any index entry that has more than one topic associated with it will not work. I just wondering if anyone else has experienced this.

I suspect but cannot confirm it is a browser issue with output from an older version of Rh. Can you install the Rh10 trial on a machine other than your normal production machine?
See www.grainge.org for RoboHelp and Authoring tips
@petergrainge

More than one entity found for a single-object find method

Hi everyone...
I have this error when my webservice is running..I don't know what it means and what would be the best solution..
<pns:message>More than one entity found for a single-object find method.</pns:message>
it throws an Exception..
Thanks!

= More than one row found in a DB with the "unique" key supplied...
Your method is returning an object where it should return a collection ?
Enjoy

Security warning 'access more than one site..' - URGENT HELP

Hi All
(USING: Reader 707 + Reader extension 702 or Acrobat 707 )
I am having big trouble with this Acrobat/reader security warning:
Security Warning
'This document as accessed more than one site and might be trying to share data among different locations. This could be a privacy concern. Are you sure you want to continue?'
I know it is more an acrobat/Reader issue than designer, but hope that one outthere has ideas.
Problem:
We have 4 servers sharing the load for a webservice. I have coded webservice connection in javascript in Designer 7.1 using SOAP.
The webservice look up data, but i recieve the security warning each time I perform the look up. I have added all sites to Trust Manager, so that is not the problem!
I think the very problem is that Acrobat/Reader request to a DNS alias, but later recieve response from ONE of the specific servers!
Acrobat/Reader request webService on:
http://ck/web/services/FormularWebservice?wsdl;
Acrobat/Reader recieve answer from (for example: da1650 - one of the 4 servers)
http://da1650:9081/web/services/FormularWebservice?wsdl;
So Acrobat/Reader shows the security warning because it suddenly recieve a response from a server that is does not know it has requested against - This is what I think happens!
Have anyone experinced a similiar situation? any ideas? All comments/ideas/solutions are appreciated. As the warning is very anoying to the user I cannot launch my LC forms so I need a solution...
Kr.
ThomasG - Denmark

just a note:
WebService URLs are only internal, so cannot be reached!

EJB 3.0 / how to define more than one @QueryNamed for an entity

I check the ejb 3.0 spec, the help and others but i didn't find the syntax that permit to determine more than one QueryNamed in an entity.
Does somebode how to do and where it is described in the documentation ?

This is exactly i have done also but i got an error during compilation
C:\oracle\product\jdeveloper10g_3565\jdev\mywork\HRApp\EJB_Project\EJB_Project\src\buslogic\Departments.java
Error(20,124): ) expected
@Entity
@NamedQueries(
@NamedQuery(name="findDepartments", queryString="select object(o) from Departments o where o.department_id = :dept_id"),
@NamedQuery(name="findAllDepartments", queryString="select object(o) from Departments o")
@Table(name="DEPARTMENTS")
public class Departments implements Serializable {
private Long departmentId;
private String departmentName;
private Long locationId;
private Collection<Employees> employeesCollection;
private Employees employees;

Adding more than one photo per frame

Is there a way in iMovie HD 5.0.2 to show more than one photo at a time that is imported from iPhoto?

I LOVE to support Christian's little company, but.........
… use any pic processor (PhotoshopElements), make your "compositing" and add THAT into iMovie....
made a long time ago some nice effect, people asked me "how?!" by making a gigantic pic, containing 8 stills, and using the KB effect to "jump" from one pic (part) to the other…
in PSE you can create a "pile" of pics, then zoom in to the wanted pic (which starts to live, but that is another story..... )

Can I have more than one primary key ???????

Hi
Assuming an application has designed as CMP with findByPrimaryKey( ) method having more than one parameter.
Example :- findByPrimarykey(String val1, String val2)
Is it possible to have two parameters fot the finder methods instead using PrimaryKey class ?
If yes, what are the changes required for following deployment descriptor element. ?
1. <prim-key-class></prim-key-class>
2. <primkey-field></primkey-field>
Regards
Edward.I

If a primary key has more than one primary key fields; is a composite primary key, a primary key class is required.
The parameter of the findByPrimaryKey() method is the primary key class.
findByPrimaryKey(PrimaryKeyClass pkClass)
Deepak

HT1420 Can you have more than one device with a different Apple ID authourized to the same computer

Can you have more than one device with a different Apple ID authourized to the same computer

I think you are using the same Composition Class on both project. On the properties tab, you can change this number (e.g.: EDGE-1637270).

File open on more than one computer at a time

I maintain a network of four Macs (Cube, G4 Tower, Mini, and G5 Tower) all running OS 10.4.11. Recently two people working on the network discovered that they both had a certain file open at the same time. In order to determine the extent of the problem, on each computer I created and kept open a TextEdit file. I then attempted to open each TextEdit file from the three computers on which the file was not stored. To my dismay I received no error or warning message of any sort. I was able to open all four files on all four computers at the same time!
Each of the computers has a single user, and each computer is logged into the other computers as the user on that computer (i.e., each guest is logged in as the host). I wonder if that might be the source of the trouble.
I never noticed any file being open on more than one computer at a time when all the computers were running 10.3.9, only after I upgraded to 10.4.
Any ideas?

This is absolutely standard behavior and I don't expect this to change any time soon.
Let me try to explain based on a model of a file stored on Server1 and being accessed by Client1 and Client2:
Here's what's happening:
Client1 connects to the server and opens the file for reading.
Client1 reads the file and closes it
Client2 connects to the server and opens the file for reading.
Client2 reads the file and closes it
Since Client1 closed the file there's nothing to indicate to Client2 that the document is in use anywhere else because, in fact, it isn't.
There's nothing on the server that knows whether Client1 opened the file to look at it, to copy it, to back it up to some other media or to actually edit it. It is only that last step that should prevent another client from opening the file.
If you think about it, that makes perfect sense. If you copy the file over the network to Client1 you do not want the server to think that Client1 has an exclusive hold on that file and to prevent Client2 from opening it.
The only time the file is in use is a) when the file is being read, and b) when the file is being saved. When it's just being viewed the client doesn't have an active hold on the file.
The actual fix here is for the application to set a flag that the file is in use and for the server to honor that flag. It's supported by the networking protocols but it's rarely implemented in applications except those that expect a multi-user setup.

Multiple AirPort Express units - use more than one at a time?

If I connect three Airport Express units in three different rooms, can I use more than one at a time?
Can I choose to only use 2 out of the 3 at one time?
Thanks.

Yes. With iTunes 6.0.2 or later, you can send an AirTunes stream to multiple remote AirPort Express units, provided that each AirPort Express has the latest AirPort firmware. The maximum number of remote AirPort Express units is three to six in typical conditions. The number that works for you will depend on your environmental conditions (such as building composition and local radio interference), distance to the remote AirPort Express units, and available network capacity relative to your other usage.

Using more than one PU and PC for the same database

I have a scenario described here: [http://www.seamframework.org/Community/UsingTwoParallelNestedConversationsWithParentAtomicConversation|http://www.seamframework.org/Community/UsingTwoParallelNestedConversationsWithParentAtomicConversation]
which uses Seam, EJB3, JPA, Hibernate, Richfaces (modalPanel) and JSF.
The question I have is the following:
is there any negative consequence (memory consumption, performance hit, etc.) of using more than one persistence unit in the persistence.xml that points to the same EntityManagerFactory? I was thinking of having one PersistenceContext (Seam-managed PC - an extended PC which is conversation-scoped) which uses one PU and reserving the other PC for the modalPanel forms and backing beans (SFSBs).
The reason I needed to use this solution/approach is so that when using Hibernate MANUAL flush with SMPC, I can achieve isolated synchronization of the PersistenceContext without updating values in the modalPanel forms and vice versa.
Any tips on best practices or alternative solutions? thx.
persistence.xml snippet:
   <persistence-unit name="boBETS">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:/boBETSDatasource</jta-data-source>
      <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
         
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
         <property name="hibernate.generate_statistics" value="true"/>
         <property name="jboss.entity.manager.factory.jndi.name" value="java:/boBETSEntityManagerFactory"/>
         <property name="hibernate.default_catalog" value="boBETS"/>
         <property name="hibernate.default_schema" value="dbo"/>
      </properties>
   </persistence-unit>
   
   <persistence-unit name="boBETS2">
      <provider>org.hibernate.ejb.HibernatePersistence</provider>
      <jta-data-source>java:/boBETSDatasource</jta-data-source>
      <properties>
         <property name="hibernate.dialect" value="org.hibernate.dialect.SQLServerDialect"/>
         
         <property name="hibernate.show_sql" value="true"/>
         <property name="hibernate.format_sql" value="true"/>
         <property name="hibernate.generate_statistics" value="true"/>
         <property name="jboss.entity.manager.factory.jndi.name" value="java:/boBETS2EntityManagerFactory"/>
         <property name="hibernate.default_catalog" value="boBETS"/>
         <property name="hibernate.default_schema" value="dbo"/>
      </properties>
   </persistence-unit>What happens if I were to have 10 PUs and 10 PCs in the same app? Whether they're all pointing to same DB or not. What's the consequence of using "too many"?

Yes, you can use multiple iCloud accounts in multiple User Accounts on one computer, but, as you know not multiple iTunes Match accounts. Keep in mind that the two services are not the same.
Since you've posted your question to the iTunes Match forum, which it really doesn't pertain to, you might want to also post it to the iCloud on my Mac forum.

Can you have more than one Edge Animate "project" on a website? I'm getting messages that there is already a file with the same name and I'm asked if I want to replace it?!?!

I've created more than one Edge Animate "Object" for the website, but can't seem to get them both to load into Dreamweaver. Is it possible to have more than one "Object" on a site?
I'm using Windows 8.1

I think you are using the same Composition Class on both project. On the properties tab, you can change this number (e.g.: EDGE-1637270).

Warning: Entity participates in more than one composition association

Similar Messages

Maybe you are looking for