Berkeley JE StoredMap : replace existing value without loading previous one

Question

I want to update a StoredMap value and I don't care about the old value. I cannot find a way to avoid the previous value from being loaded.

StoredMap<Integer, SyntaxDocument> tsCol = new StoredMap<Integer, SyntaxDocument>(tsdb, new IntegerBinding(), new PassageBinding(), true);
tsCol.put(1, doc); // insert value => ok
tsCol.put(1, doc); // <- load previous value but I don't care. I want to avoid the "heavy" PassageBinding process.
tsCol.putAll(Collections.singletonMap(1, doc)); // Even this one load the old value

Is there a way to optimize my code and update an existing value without loading it (or at least to prevent the binding to process old DatabaseEntry bytes)?

NOTE: that calling remove then put is slower.

score 0 · Accepted Answer · answered Apr 22 '14 at 09:17

Solution is to use lowlevel Database API :

Database tsdb = environment.openDatabase(null, "tsdb", dbconfig);
PassageBinding binding = new PassageBinding();
DatabaseEntry idDbEntry = new DatabaseEntry();

IntegerBinding.intToEntry(id, idDbEntry);
DatabaseEntry dbEntry = new DatabaseEntry();
pb.objectToEntry(data, dbEntry);

tsdb.put(null, idDbEntry, dbEntry); // <-- replace existing value without loading it.

Berkeley JE StoredMap : replace existing value without loading previous one

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