Examples with Lookup co.cask.cdap.etl.api.Lookup used on opensource projects

Example 1 with Lookup

use of co.cask.cdap.etl.api.Lookup in project cdap by caskdata.

the class TxLookupProvider method executeLookup.

@Nullable
private <T, R> R executeLookup(final String table, final Map<String, String> arguments, final Function<Lookup<T>, R> func) {
    final AtomicReference<R> result = new AtomicReference<>();
    Transactionals.execute(tx, new TxRunnable() {

        @Override
        public void run(DatasetContext context) throws Exception {
            Lookup<T> lookup = getLookup(table, context.getDataset(table, arguments));
            result.set(func.apply(lookup));
        }
    });
    return result.get();
}