Package org.roaringbitmap.buffer

Class BufferBitSetUtil

  • public class BufferBitSetUtil
extends java.lang.Object
    This class provides convenience functions to manipulate BitSet and MutableRoaringBitmap objects.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static MutableRoaringBitmap bitmapOf​(long[] words)
      Generate a MutableRoaringBitmap out of a long[], each long using little-endian representation of its bits
      static MutableRoaringBitmap bitmapOf​(java.util.BitSet bitSet)
      Generate a MutableRoaringBitmap out of a BitSet
      static boolean equals​(java.util.BitSet bitset, ImmutableRoaringBitmap bitmap)
      Compares a RoaringBitmap and a BitSet.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • BufferBitSetUtil

        public BufferBitSetUtil()

    • Method Detail

      • bitmapOf

        public static MutableRoaringBitmap bitmapOf​(java.util.BitSet bitSet)
        Generate a MutableRoaringBitmap out of a BitSet
        Parameters:
        bitSet - original bitset (will not be modified)
        Returns:
        roaring bitmap equivalent to BitSet

      • bitmapOf

        public static MutableRoaringBitmap bitmapOf​(long[] words)
        Generate a MutableRoaringBitmap out of a long[], each long using little-endian representation of its bits
        Parameters:
        words - array of longs (will not be modified)
        Returns:
        roaring bitmap
        See Also:
        for an equivalent

      • equals

        public static boolean equals​(java.util.BitSet bitset,
                             ImmutableRoaringBitmap bitmap)
        Compares a RoaringBitmap and a BitSet. They are equal if and only if they contain the same set of integers.
        Parameters:
        bitset - first object to be compared
        bitmap - second object to be compared
        Returns:
        whether they are equal