private boolean eventuallyLoadFurtherValues(
final String source,
final FDate key,
final FDate adjustedKey,
final boolean newMinKey,
final boolean forced) {
if (forced || shouldLoadFurtherValues(key, newMinKey)) {
final FDate keyForReadAllValues;
if (newMinKey
&& minKeyInDBFromLoadFurtherValues != null
&& key.isBefore(minKeyInDBFromLoadFurtherValues)) {
// performance optimization for first load
keyForReadAllValues = FDates.min(minKeyInDB, FDates.max(minKeyInDB, adjustedKey));
} else {
keyForReadAllValues = FDates.max(minKeyInDB, adjustedKey);
}
furtherValues.clear();
lastValuesFromFurtherValues.clear();
furtherValues.addAll(readAllValuesAscendingFrom(keyForReadAllValues));
if (!furtherValues.isEmpty()) {
assertFurtherValuesSorting(key);
}
return true;
}
return false;
}
@Override
public synchronized void clear() {
super.clear();
// remove flags so that the limit check gets skipped if get has not been called yet and this
// method might be called again
maxKeyInDB = null;
minKeyInDB = null;
// a clear forces the list to be completely reloaded next time get is called
furtherValues.clear();
lastValuesFromFurtherValues.clear();
}