public class OpenIntHashSet extends AbstractIntSet
Modifier and Type | Field and Description |
---|---|
protected static byte |
FREE |
protected static byte |
FULL |
protected static int |
NO_KEY_VALUE |
protected static byte |
REMOVED |
DEFAULT_CAPACITY, DEFAULT_MAX_LOAD_FACTOR, DEFAULT_MIN_LOAD_FACTOR, distinct, highWaterMark, lowWaterMark, maxLoadFactor, minLoadFactor
Constructor and Description |
---|
OpenIntHashSet()
Constructs an empty map with default capacity and default load factors.
|
OpenIntHashSet(int initialCapacity)
Constructs an empty map with the specified initial capacity and default load factors.
|
OpenIntHashSet(int initialCapacity,
double minLoadFactor,
double maxLoadFactor)
Constructs an empty map with the specified initial capacity and the specified minimum and maximum load factor.
|
Modifier and Type | Method and Description |
---|---|
boolean |
add(int key)
Associates the given key with the given value.
|
void |
clear()
Removes all values associations from the receiver.
|
Object |
clone()
Returns a deep copy of the receiver.
|
boolean |
contains(int key)
Returns true if the receiver contains the specified key.
|
void |
ensureCapacity(int minCapacity)
Ensures that the receiver can hold at least the specified number of associations without needing to allocate new
internal memory.
|
boolean |
forEachKey(IntProcedure procedure)
Applies a procedure to each key of the receiver, if any.
|
protected void |
getInternalFactors(int[] capacity,
double[] minLoadFactor,
double[] maxLoadFactor)
Access for unit tests.
|
protected int |
indexOfInsertion(int key) |
protected int |
indexOfKey(int key) |
void |
keys(IntArrayList list)
Fills all keys contained in the receiver into the specified list.
|
protected void |
rehash(int newCapacity)
Rehashes the contents of the receiver into a new table with a smaller or larger capacity.
|
boolean |
remove(int key)
Removes the given key with its associated element from the receiver, if present.
|
protected void |
setUp(int initialCapacity,
double minLoadFactor,
double maxLoadFactor)
Initializes the receiver.
|
void |
trimToSize()
Trims the capacity of the receiver to be the receiver's current size.
|
copy, equals, hashCode, keys, toString
chooseGrowCapacity, chooseHighWaterMark, chooseLowWaterMark, chooseMeanCapacity, chooseShrinkCapacity, equalsMindTheNull, isEmpty, nextPrime, size
protected static final byte FREE
protected static final byte FULL
protected static final byte REMOVED
protected static final int NO_KEY_VALUE
public OpenIntHashSet()
public OpenIntHashSet(int initialCapacity)
initialCapacity
- the initial capacity of the map.IllegalArgumentException
- if the initial capacity is less than zero.public OpenIntHashSet(int initialCapacity, double minLoadFactor, double maxLoadFactor)
initialCapacity
- the initial capacity.minLoadFactor
- the minimum load factor.maxLoadFactor
- the maximum load factor.IllegalArgumentException
- if initialCapacity < 0 || (minLoadFactor < 0.0 || minLoadFactor >= 1.0) ||
(maxLoadFactor <= 0.0 || maxLoadFactor >= 1.0) || (minLoadFactor >=
maxLoadFactor).public void clear()
clear
in class AbstractSet
public Object clone()
clone
in class PersistentObject
public boolean contains(int key)
contains
in class AbstractIntSet
public void ensureCapacity(int minCapacity)
This method never need be called; it is for performance tuning only. Calling this method before add()ing a large number of associations boosts performance, because the receiver will grow only once instead of potentially many times and hash collisions get less probable.
ensureCapacity
in class AbstractSet
minCapacity
- the desired minimum capacity.public boolean forEachKey(IntProcedure procedure)
forEachKey
in class AbstractIntSet
procedure
- the procedure to be applied. Stops iteration if the procedure returns false, otherwise
continues.protected int indexOfInsertion(int key)
key
- the key to be added to the receiver.protected int indexOfKey(int key)
key
- the key to be searched in the receiver.public void keys(IntArrayList list)
forEachKey(IntProcedure)
.
This method can be used to iterate over the keys of the receiver.
keys
in class AbstractIntSet
list
- the list to be filled, can have any size.public boolean add(int key)
add
in class AbstractIntSet
key
- the key the value shall be associated with.protected void rehash(int newCapacity)
public boolean remove(int key)
remove
in class AbstractIntSet
key
- the key to be removed from the receiver.protected final void setUp(int initialCapacity, double minLoadFactor, double maxLoadFactor)
setUp
in class AbstractSet
initialCapacity
- the initial capacity of the receiver.minLoadFactor
- the minLoadFactor of the receiver.maxLoadFactor
- the maxLoadFactor of the receiver.IllegalArgumentException
- if initialCapacity < 0 || (minLoadFactor < 0.0 || minLoadFactor >= 1.0) ||
(maxLoadFactor <= 0.0 || maxLoadFactor >= 1.0) || (minLoadFactor >=
maxLoadFactor).public void trimToSize()
trimToSize
in class AbstractSet
protected void getInternalFactors(int[] capacity, double[] minLoadFactor, double[] maxLoadFactor)
capacity
- minLoadFactor
- maxLoadFactor
- Copyright © 2008–2017 The Apache Software Foundation. All rights reserved.