J2me RecordStore persistence

[goyal_sunil]

Hello ,

I have a doubt regarding j2me Recordstore persistence.

For instance I opened a recordstore and then I added some records using addRecord() and modified some records using setRecord() methods.

If now my application exits without calling closeRecordStore() , will all the changes be persistently stored? Or can there be a case where recordstore can get corrupt if closeRecordStore() method is not called?

Javadoc of addRecord() method says:
"Adds a new record to the record store. The recordId for this new record is returned. This is a blocking atomic operation. The record is written to persistent storage before the method returns."

I tested it on some of the MIDP2 phones, it seems to work and closeRecordStore() is not mandatory. But I vaguely remember that I had some problems on MIDP1 devices long time back. Can some expert comment on the behavior of j2me recordstore persistence ?

Thanks
Sunil

[wang_shui]

hi goyal,

As per docs
"The record store is not actually closed until you call the closeRecordStore method as many times as you called the openRecordStore method to open it. "
http://java.sun.com/developer/J2METe...01/tt0220.html


I am not sure what happens if the application is exited without calling the closerecordstore


Wang

[soku123]

Hi,
Once the record store is not closed calling open record store again once you launch the application for the second time,will cause problems.

ThANKS
soku

[sudhakarv037]

Hi

U have to close propely the streems in $ and out put streem, then it will store.
Ur not cheching properly the exceptions
Check streem closeings then it will
urs
sudhakar

[nicenouman]

well i have used record store without closing it after use and it has caused awful lot of trouble. but if u open and close i never had any problems and i am using it for quite a while.