class FusionIndexAccessor extends FusionIndexBase<IndexAccessor> implements IndexAccessor {

    @Override
    public boolean isDirty()
    {
        return Iterables.stream( instanceSelector.transform( IndexAccessor::isDirty ) ).anyMatch( Boolean::booleanValue );
    }

      FusionIndexAccessor( SlotSelector slotSelector,
            InstanceSelector<IndexAccessor> instanceSelector,
            StoreIndexDescriptor descriptor,
            IndexDropAction dropAction );

}