Examples with SubspaceSplitter com.apple.foundationdb.map.SubspaceSplitter used on opensource projects

Example 1 with SubspaceSplitter

use of com.apple.foundationdb.map.SubspaceSplitter in project fdb-record-layer by FoundationDB.

the class TextIndexTest method scanMulti.

@Nonnull
private List<BunchedMapScanEntry<Tuple, List<Integer>, String>> scanMulti(@Nonnull FDBRecordStore store, @Nonnull Subspace mapSubspace) throws ExecutionException, InterruptedException {
    SubspaceSplitter<String> splitter = new SubspaceSplitter<String>() {

        @Nonnull
        @Override
        public Subspace subspaceOf(@Nonnull byte[] keyBytes) {
            Tuple t = mapSubspace.unpack(keyBytes);
            return mapSubspace.subspace(TupleHelpers.subTuple(t, 0, 1));
        }

        @Nonnull
        @Override
        public String subspaceTag(@Nonnull Subspace subspace) {
            return mapSubspace.unpack(subspace.getKey()).getString(0);
        }
    };
    BunchedMapMultiIterator<Tuple, List<Integer>, String> iterator = BUNCHED_MAP.scanMulti(store.ensureContextActive(), mapSubspace, splitter);
    return AsyncUtil.collectRemaining(iterator).get();
}