Java Code Examples for org.roaringbitmap.RoaringBitmap#getLongCardinality()

The following examples show how to use org.roaringbitmap.RoaringBitmap#getLongCardinality() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: Basic.java    From RoaringBitmap with Apache License 2.0 6 votes vote down vote up 
public static void main(String[] args) {
      RoaringBitmap rr = RoaringBitmap.bitmapOf(1,2,3,1000);
      RoaringBitmap rr2 = new RoaringBitmap();
      rr2.add(4000L,4255L);

      RoaringBitmap rror = RoaringBitmap.or(rr, rr2);// new bitmap
      rr.or(rr2); //in-place computation
      boolean equals = rror.equals(rr);// true
      if(!equals) throw new RuntimeException("bug");
      // number of values stored?
      long cardinality = rr.getLongCardinality();
      System.out.println(cardinality);
      // a "forEach" is faster than this loop, but a loop is possible:
      for(int i : rr) {
        System.out.println(i);
      }
}
Example 2
Source File: VeryLargeBitmap.java    From RoaringBitmap with Apache License 2.0 5 votes vote down vote up 
public static void main(String[] args) {
    RoaringBitmap rb = new RoaringBitmap();
    rb.add(0L, 1L << 32);// the biggest bitmap we can create
    System.out.println("memory usage: "+ rb.getSizeInBytes()*1.0/(1L << 32)+" byte per value");
    if(rb.getLongCardinality() != ( 1L << 32))
      throw new RuntimeException("bug!");

}
Example 3
Source File: RoutingTable.java    From spring-cloud-rsocket with Apache License 2.0 4 votes vote down vote up 
public boolean deregister(TagsMetadata metadata) {
	Assert.notNull(metadata, "metadata may not be null");
	String routeId = metadata.getRouteId();
	if (!StringUtils.hasText(routeId)) {
		if (log.isDebugEnabled()) {
			log.debug("Unable to deregister, no RouteId: " + metadata);
		}
		return false;
	}
	if (log.isInfoEnabled()) {
		log.info("Deregistering RSocket: " + metadata);
	}

	TagsMetadata findByRouteId = TagsMetadata.builder()
			.with(WellKnownKey.ROUTE_ID, routeId).build();
	RoaringBitmap found = find(findByRouteId);

	if (found.isEmpty() || found.getLongCardinality() > 1) {
		if (log.isWarnEnabled()) {
			log.warn("Unable to deregister " + metadata + ", found: "
					+ found.getLongCardinality());
		}
		return false;
	}

	int internalId = found.first();
	internalRouteIdToRouteId.remove(internalId);
	routeEntries.remove(routeId);

	metadata.getTags().forEach((key, value) -> {
		// TODO: deal with string keys?
		TagKey tagKey = new TagKey(key, value);
		if (tagsToBitmaps.containsKey(tagKey)) {
			RoaringBitmap bitmap = tagsToBitmaps.get(tagKey);
			bitmap.remove(internalId);
		}
	});

	// TODO: deregistered event
	return true;
}
Example 4
Source File: ContainsRange.java    From RoaringBitmap with Apache License 2.0 4 votes vote down vote up 
@Override
long getSup(RoaringBitmap bitmap) {
  return Util.toUnsignedLong(bitmap.first()) + bitmap.getLongCardinality() / 10;
}
Example 5
Source File: ContainsRange.java    From RoaringBitmap with Apache License 2.0 4 votes vote down vote up 
@Override
long getMin(RoaringBitmap bitmap) {
  return Util.toUnsignedLong(bitmap.last()) - bitmap.getLongCardinality() / 10;
}