> With respect to the storage of the BLOBs themselves, I don't think (at > least I couldn't find) any datatype mapping to be able to map from a stream > (obtained from ServletInputStream) into a JDO entity, ie to avoid the > creation of the BLOB in-memory. If it *were* possible, then I don't think > Isis would care; just map the property as @Programmatic and Isis would > ignore it. Perhaps Andy might be able to chip in on this?
java.io.File is currently the only java field type with a mapping that is streamable. See http://www.datanucleus.org/products/accessplatform_5_0/jdo/types.html#Other_Types Somebody could take existing code used for that type and contribute a mapping for some other java type. https://github.com/datanucleus/datanucleus-rdbms/blob/master/src/main/java/org/datanucleus/store/rdbms/mapping/datastore/BinaryStreamRDBMSMapping.java -- Andy DataNucleus (Web: http://www.datanucleus.org Twitter: @datanucleus)
