ImmutableSet (abacus API Documentation)

java.lang.Object
- java.util.AbstractCollection<E>
- - com.landawn.abacus.util.ImmutableSet<E>

All Implemented Interfaces:

java.lang.Iterable<E>, java.util.Collection<E>, java.util.Set<E>

Direct Known Subclasses:

ImmutableSortedSet
```
public class ImmutableSet<E>
extends java.util.AbstractCollection<E>
implements java.util.Set<E>
```
Since:

0.8

Author:

Haiyang Li

Method Summary

All Methods Static Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method and Description
`boolean`	`add(E e)` Deprecated. Unsupported operation.
`boolean`	`addAll(java.util.Collection<? extends E> newElements)` Deprecated. Unsupported operation.
`void`	`clear()` Deprecated. Unsupported operation.
`boolean`	`contains(java.lang.Object o)`
`static <E> ImmutableSet<E>`	`copyOf(java.util.Collection<? extends E> set)`
`static <E> ImmutableSet<E>`	`empty()`
`boolean`	`equals(java.lang.Object obj)`
`int`	`hashCode()`
`java.util.Iterator<E>`	`iterator()`
`static <E> ImmutableSet<E>`	`of(E... a)`
`static <E> ImmutableSet<E>`	`of(java.util.Set<? extends E> set)`
`boolean`	`remove(java.lang.Object object)` Deprecated. Unsupported operation.
`boolean`	`removeAll(java.util.Collection<?> oldElements)` Deprecated. Unsupported operation.
`boolean`	`removeIf(java.util.function.Predicate<? super E> filter)` Deprecated. Unsupported operation.
`boolean`	`retainAll(java.util.Collection<?> elementsToKeep)` Deprecated. Unsupported operation.
`int`	`size()`
`Stream<E>`	`streamm()`
`java.lang.Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] a)`
`java.lang.String`	`toString()`

Methods inherited from class java.util.AbstractCollection
containsAll, isEmpty

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Set
add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable
forEach

- Method Detail
  - empty
```
public static <E> ImmutableSet<E> empty()
```
  - of
```
@SafeVarargs
public static <E> ImmutableSet<E> of(E... a)
```
  - of
```
public static <E> ImmutableSet<E> of(java.util.Set<? extends E> set)
```
    Parameters:
    
    set - the elements in this Set are shared by the returned ImmutableSet.
    
    Returns:
  - copyOf
```
public static <E> ImmutableSet<E> copyOf(java.util.Collection<? extends E> set)
```
    Parameters:
    
    set -
    
    Returns:
  - add
```
@Deprecated
public final boolean add(E e)
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    add in interface java.util.Collection<E>
    
    Overrides:
    
    add in class java.util.AbstractCollection<E>
  - addAll
```
@Deprecated
public final boolean addAll(java.util.Collection<? extends E> newElements)
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    addAll in interface java.util.Collection<E>
    
    Overrides:
    
    addAll in class java.util.AbstractCollection<E>
  - remove
```
@Deprecated
public final boolean remove(java.lang.Object object)
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    remove in interface java.util.Collection<E>
    
    Overrides:
    
    remove in class java.util.AbstractCollection<E>
  - removeIf
```
@Deprecated
public boolean removeIf(java.util.function.Predicate<? super E> filter)
```
    Deprecated. Unsupported operation.
  - removeAll
```
@Deprecated
public final boolean removeAll(java.util.Collection<?> oldElements)
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    removeAll in interface java.util.Collection<E>
    
    Overrides:
    
    removeAll in class java.util.AbstractCollection<E>
  - retainAll
```
@Deprecated
public final boolean retainAll(java.util.Collection<?> elementsToKeep)
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    retainAll in interface java.util.Collection<E>
    
    Overrides:
    
    retainAll in class java.util.AbstractCollection<E>
  - clear
```
@Deprecated
public final void clear()
```
    Deprecated. Unsupported operation.
    
    Specified by:
    
    clear in interface java.util.Collection<E>
    
    Overrides:
    
    clear in class java.util.AbstractCollection<E>
  - contains
```
public boolean contains(java.lang.Object o)
```
    Specified by:
    
    contains in interface java.util.Collection<E>
    
    Overrides:
    
    contains in class java.util.AbstractCollection<E>
  - iterator
```
public java.util.Iterator<E> iterator()
```
    Specified by:
    
    iterator in interface java.lang.Iterable<E>
    
    Specified by:
    
    iterator in interface java.util.Collection<E>
    
    Specified by:
    
    iterator in class java.util.AbstractCollection<E>
  - size
```
public int size()
```
    Specified by:
    
    size in interface java.util.Collection<E>
    
    Specified by:
    
    size in class java.util.AbstractCollection<E>
  - toArray
```
public java.lang.Object[] toArray()
```
    Specified by:
    
    toArray in interface java.util.Collection<E>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<E>
  - toArray
```
public <T> T[] toArray(T[] a)
```
    Specified by:
    
    toArray in interface java.util.Collection<E>
    
    Overrides:
    
    toArray in class java.util.AbstractCollection<E>
  - streamm
```
public Stream<E> streamm()
```
  - equals
```
public boolean equals(java.lang.Object obj)
```
    Specified by:
    
    equals in interface java.util.Collection<E>
    
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Specified by:
    
    hashCode in interface java.util.Collection<E>
    
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.util.AbstractCollection<E>

Class ImmutableSet<E>

Method Summary

Methods inherited from class java.util.AbstractCollection

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Set

Methods inherited from interface java.util.Collection

Methods inherited from interface java.lang.Iterable

Method Detail

empty

of

of

copyOf

add

addAll

remove

removeIf

removeAll

retainAll

clear

contains

iterator

size

toArray

toArray

streamm

equals

hashCode

toString