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javablobdb4o

Getting Db4o blobs out of the Database without storing them to disk

Is there a way to get a Db4o Blob out of the Database without storing it to disk?
I only found the method void com.db4o.types.Blob.writeTo(File arg0)

Solution

  • Unfortunately not =( There's no work around (except changing the db4o code). You have to work with files to use the db4o-blob type.

    I agree that this is quite annoying.

    As alternative you could use byte[]-arrays, which are more convenient to work with. However mind the db4o file-size limitation when your using byte[]-arrays as blob.

    Just some additional notes:

    • You also need to poll for the state, which is also very annoying.
    • Note that the blob IO runs outside the transaction.