@Override
public Runnable prepareMergeRunnable() {
final Map<String, MapContainer> mapContainers = mapServiceContext.getMapContainers();
final Map<MapContainer, Collection<Record>> recordMap = new HashMap<MapContainer,
Collection<Record>>(mapContainers.size());
final InternalPartitionService partitionService = nodeEngine.getPartitionService();
final int partitionCount = partitionService.getPartitionCount();
final Address thisAddress = nodeEngine.getClusterService().getThisAddress();
for (MapContainer mapContainer : mapContainers.values()) {
for (int i = 0; i < partitionCount; i++) {
RecordStore recordStore = mapServiceContext.getPartitionContainer(i).getRecordStore(mapContainer.getName());
// add your owned entries to the map so they will be merged
if (thisAddress.equals(partitionService.getPartitionOwner(i))) {
Collection<Record> records = recordMap.get(mapContainer);
if (records == null) {
records = new ArrayList<Record>();
recordMap.put(mapContainer, records);
}