More adventures in GAE Persistence

[dankib01]

I've upgrade Roo to 1.1.2 and run my script to create an App using GAE Persistence. I still have to make fixes in my Tour_Roo_JavaBean.aj to get it to compile. This entity has many-to-many relationships implemented as Set with some of my other entities. There are 2 problems.

• HashSet is used in the Set<Key> declarations but not imported.
• The getters and setters try to create (instanciate) new Set<...>() rather than new HashSet<...>().

After fixing these, I still have a problem when I try to Run on Server (STS 2.5.2). I'm getting this exception:

2011-03-03 06:16:45,347 [main] ERROR org.springframework.web.context.ContextLoader - Context initialization failed
org.springframework.transaction.CannotCreateTransactionException: Could not open JPA EntityManager for transaction; nested exception is java.lang.NullPointerException: No API environment is registered for this thread.
	at org.springframework.orm.jpa.JpaTransactionManager.doBegin(JpaTransactionManager.java:382)
	at org.springframework.transaction.support.AbstractPlatformTransactionManager.getTransaction(AbstractPlatformTransactionManager.java:371)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:335)
	at org.springframework.transaction.interceptor.TransactionAspectSupport.createTransactionIfNecessary(TransactionAspectSupport.java:273)
	at org.springframework.transaction.aspectj.AbstractTransactionAspect.ajc$before$org_springframework_transaction_aspectj_AbstractTransactionAspect$1$2a73e96c(AbstractTransactionAspect.aj:63)
	at com.getrolling.cis.InsertTestData.init(InsertTestData.java:33)
	at com.getrolling.cis.InsertTestData.onApplicationEvent(InsertTestData.java:28)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:97)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:303)
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:911)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:428)
...

Any help?

Dan

[agibson]

Same problems with SET. No problem with EntityManager after correct the code.
Roo 1.1.2.

This is my script:

project --topLevelPackage com.test --projectName gae-test --java 6
persistence setup --database GOOGLE_APP_ENGINE --provider DATANUCLEUS 

entity --class ~.shared.test.Smartmeter --testAutomatically 
entity --class ~.shared.test.Variable --testAutomatically 

focus --class ~.shared.test.Smartmeter
field number --fieldName estado --notNull --type java.lang.Integer --value 1
field set --fieldName variables --type ~.shared.test.Variable

focus --class ~.test.Variable
field string --fieldName nombre --notNull

[dankib01]

Are you using "run on server" in STS? Maybe I should try running from the command line.

[agibson]

The steps I follow.

1. Create an empty folder for my project.
2. Copy my <code>myScript.roo</code> file to this folder
3. From within project folder call Roo, execute <code>script myScript.roo</code>
4. Run STS and Import Maven Project

From now on, I stay in STS.

5. Correct .aj code
6. Change preferences Google-->GAE-->ORM-->Path
. Delete resources folder
. Add detail and filter to src/main/ and /src/test path. (shared/**/*.java)
7. Compile with GWT button in STS interface
8. Run as Web App

(Y)

Must work.

[dankib01]

Thanks for the details. I'll try again tonight.

[mrsvan]

I created a bug in Jira for this problem: https://jira.springsource.org/browse/ROO-2208

[Alan Stewart]

ROO-2208 is fixed now.

Alan