@Override
protected void post() {
for (DataWriter<I> writer : tasks) {
writer.post();
writer.close();
}
}
@Override
protected void pre() {
for (DataWriter<I> writer : tasks) {
writer.open();
writer.pre();
}
}
@Override
protected List<Object> execute(DataWriter<I> writer, List<I> batch) {
writer.write(batch);
return SINGLETON_LIST;
}