private static class DefaultImmutableSet.NILSet<T> extends DefaultImmutableSet<T>
Modifier and Type | Field and Description |
---|---|
(package private) static DefaultImmutableSet.NILSet<?> |
NIL |
private static long |
serialVersionUID |
UNION_OPTIMIZATION_SIZE
Modifier | Constructor and Description |
---|---|
private |
DefaultImmutableSet.NILSet() |
Modifier and Type | Method and Description |
---|---|
ImmutableSet<T> |
add(T element)
adds an element
|
ImmutableSet<T> |
addUnique(T element)
adds an element (which is unique, since the set was empty)
|
boolean |
contains(T obj) |
boolean |
equals(Object o) |
int |
hashCode() |
boolean |
isEmpty() |
Iterator<T> |
iterator() |
private Object |
readResolve()
the NIL list is a singleton.
|
ImmutableSet<T> |
remove(T element) |
int |
size() |
boolean |
subset(ImmutableSet<T> s) |
<S> S[] |
toArray(S[] array)
Convert the set to a Java array (O(n))
|
String |
toString() |
ImmutableSet<T> |
union(ImmutableSet<T> set) |
fromImmutableList, intersect, nil, toImmutableList
private static final long serialVersionUID
static final DefaultImmutableSet.NILSet<?> NIL
private Object readResolve() throws ObjectStreamException
ObjectStreamException
public ImmutableSet<T> add(T element)
add
in interface ImmutableSet<T>
add
in class DefaultImmutableSet<T>
element
- of type public ImmutableSet<T> addUnique(T element)
addUnique
in interface ImmutableSet<T>
addUnique
in class DefaultImmutableSet<T>
element
- of type public ImmutableSet<T> union(ImmutableSet<T> set)
union
in interface ImmutableSet<T>
union
in class DefaultImmutableSet<T>
public boolean contains(T obj)
contains
in interface ImmutableSet<T>
contains
in class DefaultImmutableSet<T>
public Iterator<T> iterator()
iterator
in interface Iterable<T>
iterator
in interface ImmutableSet<T>
iterator
in class DefaultImmutableSet<T>
public boolean subset(ImmutableSet<T> s)
subset
in interface ImmutableSet<T>
subset
in class DefaultImmutableSet<T>
public int size()
size
in interface ImmutableSet<T>
size
in class DefaultImmutableSet<T>
public boolean isEmpty()
isEmpty
in interface ImmutableSet<T>
isEmpty
in class DefaultImmutableSet<T>
public boolean equals(Object o)
equals
in interface ImmutableSet<T>
equals
in class DefaultImmutableSet<T>
public int hashCode()
hashCode
in interface ImmutableSet<T>
hashCode
in class DefaultImmutableSet<T>
public String toString()
toString
in class DefaultImmutableSet<T>
public ImmutableSet<T> remove(T element)
remove
in interface ImmutableSet<T>
remove
in class DefaultImmutableSet<T>
public <S> S[] toArray(S[] array)
DefaultImmutableSet
toArray
in interface ImmutableSet<T>
toArray
in class DefaultImmutableSet<T>