Package owl.collections

Class BitSet2

java.lang.Object

owl.collections.BitSet2

public final class BitSet2
extends Object

Method Summary

Modifier and Type	Method	Description
static SortedSet<Integer>	asSet(BitSet bitSet)	Creates a view of the {@param bitSet} as a Set.
static <S> Set<? extends S>	asSet(BitSet bs, IntFunction<? extends S> stateMap)	Converts a BitSet into a set.
static BitSet	copyOf(BitSet bitSet)
static <S> BitSet	copyOf(Collection<? extends S> set, ToIntFunction<? super S> mapping)	Converts a set into a bitset.
static BitSet	copyOf(Collection<Integer> set)
static BitSet	copyOf(ImmutableBitSet set)
static BitSet	fromInt(int i)	Converts an int into a BitSet.
static BitSet	intersection(BitSet a, BitSet b)
static BitSet	of()
static BitSet	of(int e0)
static BitSet	of(int... elements)
static BitSet	of(int e0, int e1)
static Iterable<BitSet>	powerSet(int i)	Returns an iterator over all BitSets with length at most i.
static Iterable<BitSet>	powerSet(BitSet basis)
static int	toInt(BitSet bs)	Converts a BitSet into an Int.
static BitSet	union(BitSet a, BitSet b)
static BitSet	without(BitSet a, BitSet b)

Methods inherited from class java.lang.Object

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

Method Detail

of

public static BitSet of()

of

public static BitSet of(int e0)

of

public static BitSet of(int e0,
                        int e1)

of

public static BitSet of(int... elements)

copyOf

public static BitSet copyOf(BitSet bitSet)

copyOf

public static BitSet copyOf(ImmutableBitSet set)

copyOf

public static BitSet copyOf(Collection<Integer> set)

copyOf

public static <S> BitSet copyOf(Collection<? extends S> set,
                                ToIntFunction<? super S> mapping)

Converts a set into a bitset.

Parameters:

set - set to be converted

mapping - mapping from elements to indices

Returns:

corresponding BitSet

asSet

public static SortedSet<Integer> asSet(BitSet bitSet)

Creates a view of the {@param bitSet} as a Set. All changes of the underlying Bitset are reflected in the view and vice-versa.

This method acts as bridge between bitset-based and collection-based APIs, in combination with copyOf(Collection), similar to Arrays.asList(Object[])

Parameters:

bitSet - the bitset for which the view is created.

Returns:

a view.

asSet

public static <S> Set<? extends S> asSet(BitSet bs,
                                         IntFunction<? extends S> stateMap)

Converts a BitSet into a set.

Parameters:

bs - bitset to be decoded

stateMap - mapping from bits to elements

Returns:

resulting set

toInt

public static int toInt(BitSet bs)

Converts a BitSet into an Int.

Parameters:

bs - bitset to be encoded (should be small enough to fit into int)

fromInt

public static BitSet fromInt(int i)

Converts an int into a BitSet.

Parameters:

i - int to be decoded into bitset

union

public static BitSet union(BitSet a,
                           BitSet b)

intersection

public static BitSet intersection(BitSet a,
                                  BitSet b)

without

public static BitSet without(BitSet a,
                             BitSet b)

powerSet

public static Iterable<BitSet> powerSet(int i)

Returns an iterator over all BitSets with length at most i.

Parameters:

i - the maximal length.

Returns:

each next()-call constructs a fresh BitSet.

powerSet

public static Iterable<BitSet> powerSet(BitSet basis)