@Override
public void write(DataOutput out) throws IOException {
out.writeInt(neighbors.size());
IntIterator neighborsIt = neighbors.iterator();
while (neighborsIt.hasNext()) {
out.writeInt(neighborsIt.nextInt());
}
}
@Override
public void hashValues(DimensionSelector dimSelector, HyperLogLogCollector collector) {
for (IntIterator rowIt = dimSelector.getRow().iterator(); rowIt.hasNext(); ) {
int index = rowIt.nextInt();
final String value = dimSelector.lookupName(index);
collector.add(
CardinalityAggregator.hashFn.hashUnencodedChars(nullToSpecial(value)).asBytes());
}
}
@Override
@Nonnull
public VectorEntry next() {
int pos = iter.nextInt();
boolean isSet = state == VectorEntry.State.SET || keys.indexIsActive(pos);
double v = isSet ? values[pos] : Double.NaN;
entry.set(pos, keys.getKey(pos), v, isSet);
return entry;
}
/**
* Get the collection of values of this vector.
*
* @return The collection of all values in this vector.
*/
public DoubleCollection values() {
DoubleArrayList lst = new DoubleArrayList(size());
IntIterator iter = keys.activeIndexIterator(false);
while (iter.hasNext()) {
int idx = iter.nextInt();
lst.add(values[idx]);
}
return lst;
}
@Override
@Nonnull
public VectorEntry next() {
int pos = iter.nextInt();
return new VectorEntry(SparseVector.this, pos, keys.getKey(pos), values[pos], true);
}