ObjectSet

java.lang.Object
- com.fr.stable.collections.map.ObjectSet<T>

所有已实现的接口:

java.lang.Iterable<T>

直接已知子类:

OrderedSet
```
public class ObjectSet<T>
extends java.lang.Object
implements java.lang.Iterable<T>
```
An unordered set where the keys are objects. This implementation uses cuckoo hashing using 3 hashes, random walking, and a small stash for problematic keys. Null keys are not allowed. No allocation is done except when growing the table size.

This set performs very fast contains and remove (typically O(1), worst case O(log(n))). Add may be a bit slower, depending on hash collisions. Load factors greater than 0.91 greatly increase the chances the set will have to rehash to the next higher POT size.

作者:

Nathan Sweet

嵌套类概要

嵌套类
限定符和类型类和说明

static class ObjectSet.ObjectSetIterator<K>

嵌套类
限定符和类型	类和说明
`static class`	`ObjectSet.ObjectSetIterator<K>`

字段概要

字段
限定符和类型字段和说明

int size

字段
限定符和类型	字段和说明
`int`	`size`

构造器概要

构造器
构造器和说明
`ObjectSet()` Creates a new set with an initial capacity of 51 and a load factor of 0.8.
`ObjectSet(int initialCapacity)` Creates a new set with a load factor of 0.8.
`ObjectSet(int initialCapacity, float loadFactor)` Creates a new set with the specified initial capacity and load factor.
`ObjectSet(ObjectSet set)` Creates a new set identical to the specified set.

方法概要

方法
限定符和类型	方法和说明
`boolean`	`add(T key)` Returns true if the key was not already in the set.
`void`	`addAll(Array<? extends T> array)`
`void`	`addAll(Array<? extends T> array, int offset, int length)`
`void`	`addAll(ObjectSet<T> set)`
`void`	`addAll(T... array)`
`void`	`addAll(T[] array, int offset, int length)`
`void`	`clear()`
`void`	`clear(int maximumCapacity)` Clears the set and reduces the size of the backing arrays to be the specified capacity if they are larger.
`boolean`	`contains(T key)`
`void`	`ensureCapacity(int additionalCapacity)` Increases the size of the backing array to accommodate the specified number of additional items.
`boolean`	`equals(java.lang.Object obj)`
`T`	`first()`
`int`	`hashCode()`
`ObjectSet.ObjectSetIterator<T>`	`iterator()` Returns an iterator for the keys in the set.
`boolean`	`remove(T key)` Returns true if the key was removed.
`void`	`shrink(int maximumCapacity)` Reduces the size of the backing arrays to be the specified capacity or less.
`java.lang.String`	`toString()`
`java.lang.String`	`toString(java.lang.String separator)`
`static <T> ObjectSet<T>`	`with(T... array)`

从类继承的方法 java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- 字段详细资料
  - size
```
public int size
```
- 构造器详细资料
  - ObjectSet
```
public ObjectSet()
```
    Creates a new set with an initial capacity of 51 and a load factor of 0.8.
  - ObjectSet
```
public ObjectSet(int initialCapacity)
```
    Creates a new set with a load factor of 0.8.
    
    参数:
    initialCapacity - If not a power of two, it is increased to the next nearest power of two.
  - ObjectSet
```
public ObjectSet(int initialCapacity,
         float loadFactor)
```
    Creates a new set with the specified initial capacity and load factor. This set will hold initialCapacity items before growing the backing table.
    
    参数:
    initialCapacity - If not a power of two, it is increased to the next nearest power of two.
  - ObjectSet
```
public ObjectSet(ObjectSet set)
```
    Creates a new set identical to the specified set.
- 方法详细资料
  - add
```
public boolean add(T key)
```
    Returns true if the key was not already in the set. If this set already contains the key, the call leaves the set unchanged and returns false.
  - addAll
```
public void addAll(Array<? extends T> array)
```
  - addAll
```
public void addAll(Array<? extends T> array,
          int offset,
          int length)
```
  - addAll
```
public void addAll(T... array)
```
  - addAll
```
public void addAll(T[] array,
          int offset,
          int length)
```
  - addAll
```
public void addAll(ObjectSet<T> set)
```
  - remove
```
public boolean remove(T key)
```
    Returns true if the key was removed.
  - shrink
```
public void shrink(int maximumCapacity)
```
    Reduces the size of the backing arrays to be the specified capacity or less. If the capacity is already less, nothing is done. If the set contains more items than the specified capacity, the next highest power of two capacity is used instead.
  - clear
```
public void clear(int maximumCapacity)
```
    Clears the set and reduces the size of the backing arrays to be the specified capacity if they are larger.
  - clear
```
public void clear()
```
  - contains
```
public boolean contains(T key)
```
  - first
```
public T first()
```
  - ensureCapacity
```
public void ensureCapacity(int additionalCapacity)
```
    Increases the size of the backing array to accommodate the specified number of additional items. Useful before adding many items to avoid multiple backing array resizes.
  - hashCode
```
public int hashCode()
```
    覆盖:
    
    hashCode 在类中 java.lang.Object
  - equals
```
public boolean equals(java.lang.Object obj)
```
    覆盖:
    
    equals 在类中 java.lang.Object
  - toString
```
public java.lang.String toString()
```
    覆盖:
    
    toString 在类中 java.lang.Object
  - toString
```
public java.lang.String toString(java.lang.String separator)
```
  - iterator
```
public ObjectSet.ObjectSetIterator<T> iterator()
```
    Returns an iterator for the keys in the set. Remove is supported. Note that the same iterator instance is returned each time this method is called. Use the ObjectSet.ObjectSetIterator constructor for nested or multithreaded iteration.
    
    指定者:
    
    iterator 在接口中 java.lang.Iterable<T>
  - with
```
public static <T> ObjectSet<T> with(T... array)
```

类 ObjectSet<T>

嵌套类概要

字段概要

构造器概要

方法概要

从类继承的方法 java.lang.Object

字段详细资料

size

构造器详细资料

ObjectSet

ObjectSet

ObjectSet

ObjectSet

方法详细资料

add

addAll

addAll

addAll

addAll

addAll

remove

shrink

clear

clear

contains

first

ensureCapacity

hashCode

equals

toString

toString

iterator

with