public void clear() {
checkIfLoaded();
resetSizeEstimator();
final Collection<Data> lockedKeys =
lockStore != null ? lockStore.getLockedKeys() : Collections.<Data>emptySet();
final Map<Data, Record> lockedRecords = new HashMap<Data, Record>(lockedKeys.size());
// Locked records should not be removed!
for (Data key : lockedKeys) {
Record record = records.get(key);
if (record != null) {
lockedRecords.put(key, record);
updateSizeEstimator(calculateRecordSize(record));
}
}
Set<Data> keysToDelete = records.keySet();
keysToDelete.removeAll(lockedRecords.keySet());
final MapStoreWrapper store = mapContainer.getStore();
// Use an ArrayList so that we don't trigger calls to equals or hashCode on the key objects
Collection<Object> keysObject = new ArrayList<Object>(keysToDelete.size());
for (Data key : keysToDelete) {
// todo ea have a clear(Keys) method for optimizations
removeIndex(key);
keysObject.add(mapService.toObject(key));
}
if (store != null) {
store.deleteAll(keysObject);
toBeRemovedKeys.removeAll(keysToDelete);
}
clearRecordsMap(lockedRecords);
cancelAssociatedSchedulers(keysToDelete);
resetAccessSequenceNumber();
}
private void destroyMapStores() {
for (MapContainer mapContainer : mapContainers.values()) {
MapStoreWrapper store = mapContainer.getStore();
if (store != null) {
store.destroy();
}
}
}
private void mapStoreDelete(Record record, Data key) {
final MapStoreWrapper store = mapContainer.getStore();
if (store != null) {
long writeDelayMillis = mapContainer.getWriteDelayMillis();
if (writeDelayMillis == 0) {
store.delete(mapService.toObject(key));
// todo ea record will be deleted then why calling onStore
if (record != null) {
record.onStore();
}
} else {
mapService.scheduleMapStoreDelete(name, key, writeDelayMillis);
toBeRemovedKeys.add(key);
}
}
}
private Object writeMapStore(Data dataKey, Object recordValue, Record record) {
final MapStoreWrapper store = mapContainer.getStore();
if (store != null) {
if (mapContainer.getWriteDelayMillis() <= 0) {
Object objectValue = mapService.toObject(recordValue);
store.store(mapService.toObject(dataKey), objectValue);
if (record != null) {
record.onStore();
}
// if store is not a post-processing map-store, then avoid extra de-serialization phase.
return store.isPostProcessingMapStore() ? objectValue : recordValue;
} else {
mapService.scheduleMapStoreWrite(
name, dataKey, recordValue, mapContainer.getWriteDelayMillis());
}
}
return recordValue;
}
