Constructor Detail

• BitField

  public BitField​(int size)

  Creates a new BitField that represents size unset bits.

• BitField

  public BitField​(byte[] bitfield,
                  int size)

  Creates a new BitField that represents size bits as set by the given byte array. This will make a copy of the array. Extra bytes will be ignored.

  Throws:

  IndexOutOfBoundsException - if give byte array is not large enough.

Method Detail

• getFieldBytes

  public byte[] getFieldBytes()

  This returns the actual byte array used. Changes to this array affect this BitField. Note that some bits at the end of the byte array are supposed to be always unset if they represent bits bigger then the size of the bitfield. Caller should synch on this and copy!

• size

  public int size()

  Return the size of the BitField. The returned value is one bigger then the last valid bit number (since bit numbers are counted from zero).

• set

  public void set​(int bit)

  Sets the given bit to true.

  Throws:

  IndexOutOfBoundsException - if bit is smaller then zero bigger then size (inclusive).

• clear

  public void clear​(int bit)

  Sets the given bit to false.

  Throws:

  IndexOutOfBoundsException - if bit is smaller then zero bigger then size (inclusive).

  Since:

  0.9.22

• setAll

  public void setAll()

  Sets all bits to true.

  Since:

  0.9.21

• get

  public boolean get​(int bit)

  Return true if the bit is set or false if it is not.

  Throws:

  IndexOutOfBoundsException - if bit is smaller then zero bigger then size (inclusive).

• count

  public int count()

  Return the number of set bits.

• complete

  public boolean complete()

  Return true if all bits are set.

• hashCode

  public int hashCode()

  Overrides:

  hashCode in class Object

  Since:

  0.9.33

• equals

  public boolean equals​(Object o)

  Overrides:

  equals in class Object

  Since:

  0.9.33

• toString

  public String toString()

  Overrides:

  toString in class Object