Package com.helger.commons.lang

Class BitSetHelper

java.lang.Object
com.helger.commons.lang.BitSetHelper
@Immutable public final class BitSetHelper extends Object
Helper class to work with bit sets.
Author:
Philip Helger

  • Method Details

    • createBitSet

      @Nonnull public static BitSet createBitSet(byte nValue)
      Convert the passed byte value to an bit set of size 8.
      Parameters:
      nValue - The value to be converted to a bit set.
      Returns:
      The non-null bit set.

    • createBitSet

      @Nonnull public static BitSet createBitSet(short nValue)
      Convert the passed short value to an bit set of size 16.
      Parameters:
      nValue - The value to be converted to a bit set.
      Returns:
      The non-null bit set.

    • createBitSet

      @Nonnull public static BitSet createBitSet(int nValue)
      Convert the passed int value to an bit set of size 32.
      Parameters:
      nValue - The value to be converted to a bit set.
      Returns:
      The non-null bit set.

    • createBitSet

      @Nonnull public static BitSet createBitSet(long nValue)
      Convert the passed long value to an bit set of size 64.
      Parameters:
      nValue - The value to be converted to a bit set.
      Returns:
      The non-null bit set.

    • getExtractedIntValue

      public static int getExtractedIntValue(@Nonnull BitSet aBS)
      Extract the int representation of the passed bit set. To avoid loss of data, the bit set may not have more than 32 bits.
      Parameters:
      aBS - The bit set to extract the value from. May not be null.
      Returns:
      The extracted value. May be negative if the bit set has 32 elements, the highest order bit is set.

    • getExtractedLongValue

      public static long getExtractedLongValue(@Nonnull BitSet aBS)
      Extract the long representation of the passed bit set. To avoid loss of data, the bit set may not have more than 64 bits.
      Parameters:
      aBS - The bit set to extract the value from. May not be null.
      Returns:
      The extracted value. May be negative if the bit set has 64 elements, the highest order bit is set.