Re: Any way to configure "development" mode for DataNucleus to force it to reload class metadata?


There is a MetaDataManager for each PMF. It loads metadata when it needs to. There is a method unloadMetaDataForClass to unload a class' metadata if needing to do so.
There is also a method on JDOPersistenceManagerFactory unmanageClass(String className) which will call the underlying MetaDataManager method as well as the associated StoreManager method. Added in DN 4.0.

You could also ask on Apache ISIS support (which uses DataNucleus) because Dan Haywood played around with a JRebel addon to do something related some time ago. No idea if he published it.

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