[#TRAILS-142] OpenSessionInView - detached entities eventually comes apart after span 3 levels associations

Trails

OpenSessionInView - detached entities eventually comes apart after span 3 levels associations

Created: 05/Mar/08 12:53 PM Updated: 12/Apr/08 07:47 AM

Component/s:

trails-core, trails-hibernate

Affects Version/s:

1.2.0

Fix Version/s:

1.2.0

Time Tracking:

Not Specified

File Attachments:

stack.trace.txt (41 kB)
2.

trails-142.example.roster.code.update.txt (58 kB)
3.

trails-142.trails-core.code.update.txt (25 kB)
4.

trails-142.trails-core.code.update.txt (25 kB)

Environment:

XP Pro, apache-maven-2.0.8, eclipse-3.3.1.1, jre-1.5.0_14, ognl-2.7.3-SNAPSHOT, tapestry-4.1.6-SNAPSHOT , MySQL-5.0.45

Issue Links:

Duplicate

This issue is duplicated by:

~~TRAILS-127~~ TRAILS does not support detached entity collections in OGNL

Related

This issue is related to:

~~TRAILS-94~~ reassociated object has dirty collection

Description

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OpenSessionInView - detached entities eventually comes apart after span 3 levels associations

While operating roster demo... see attached updated code

1. create league
2. create save league
3. edit league
4. create organization
5. save organization
6. edit organization
7. create team
8. save team
9. edit team
10. see stack trace for app crash

These associations span 3 levels.

All

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Alejandro Scandroli added a comment - 12/Apr/08 07:47 AM

fixed in rev 942

In this particular case, when the parent of a collection is referenced in the child edit page, a simple lock
on the parent object

getSession().lock(model, LockMode.NONE);

is not enough, the parent object needs to be reloaded.
To reload it there is a new PropertyPersistenceStrategy called ReloadReattachPropertyPersistenceStrategy
I've configure roster example to use ReloadReattachPropertyPersistenceStrategy by default when dealing with "parent" objects.

You can also explicitly use the ReloadReattachPropertyPersistenceStrategy, it's strategy-id is: "reattach-reload"