Destroy objectbox DB

Question

I am currently using objectbox via koin dependency injection within my android app. It works fine however i need to re-initialise my DI and so i need to destroy the boxStore before. This is because i initialise the box via DI and if i do not destroy the current BoxStore I cannot create a new one.

I've found a similar post How to close Objectbox Store and delete data files however it hasn't solved my issue.

I have tried calling deleteAllFiles however i am getting an error.

        BoxStore.deleteAllFiles(context, (BoxStoreBuilder.DEFAULT_NAME))

        BoxStore.deleteAllFiles(context, null)

I am getting the error message:

java.lang.IllegalStateException: Cannot delete files: store is still open

this is on the line of code mentioned above. Any suggestions would be very helpful

score 0 · Accepted Answer · answered Jun 20 '19 at 15:35

solution:

i had to access each of my boxes individually and delete them one at a time.

fun clearAll(){
    firstBox.box.removeAll()
    secondBox.box.removeAll()
    ....... 
}


fun closeAll(){
    firstBox.box.close()
    secondBox.box.close()
    ....... 
}

score 0 · Answer 2 · answered Jul 31 '19 at 04:23

You can just close the boxStore and then delete all files:

boxStore.close();
boxStore.deleteAllFiles();

There's also a static method for deleting all the files ( if you want to delete all files before you open boxStore )

It's the most efficient way.

Ref: https://github.com/objectbox/objectbox-java/issues/317

score 0 · Answer 3 · edited Sep 13 '22 at 12:13

0

I can suggest a solution. You can get all entity classes and get each box and clear them.

boxStore.getAllEntityClasses().forEach( entityClass -> 
   boxStore.boxFor(entityClass
).removeAll());

edited Sep 13 '22 at 12:13

commandiron

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answered Sep 07 '22 at 19:29

kost05

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Destroy objectbox DB

3 Answers3