
PCJ API Version 1.2 

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java.lang.Object bak.pcj.AbstractIntCollection bak.pcj.set.AbstractIntSet bak.pcj.set.IntOpenHashSet
This class represents open addressing hash table based sets of int values. Unlike the Java Collections HashSet instances of this class are not backed up by a map. It is implemented using a simple open addressing hash table where the keys are stored directly as entries.
IntOpenHashSet
,
HashSet
,
Serialized FormField Summary  
static int 
DEFAULT_CAPACITY
The default capacity of this set. 
static int 
DEFAULT_GROWTH_CHUNK
The default chunk size with which to increase the capacity of this set. 
static double 
DEFAULT_GROWTH_FACTOR
The default factor with which to increase the capacity of this set. 
static double 
DEFAULT_LOAD_FACTOR
The default load factor of this set. 
Constructor Summary  
IntOpenHashSet()
Creates a new hash set with capacity 11, a relative growth factor of 1.0, and a load factor of 75%. 

IntOpenHashSet(double loadFactor)
Creates a new hash set with a capacity of 11, a relative growth factor of 1.0, and a specified load factor. 

IntOpenHashSet(int capacity)
Creates a new hash set with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%. 

IntOpenHashSet(int[] a)
Creates a new hash set with the same elements as the specified array. 

IntOpenHashSet(IntCollection c)
Creates a new hash set with the same elements as a specified collection. 

IntOpenHashSet(int capacity,
double loadFactor)
Creates a new hash set with a specified capacity and load factor, and a relative growth factor of 1.0. 

IntOpenHashSet(int capacity,
double loadFactor,
double growthFactor)
Creates a new hash set with a specified capacity, load factor, and relative growth factor. 

IntOpenHashSet(int capacity,
double loadFactor,
int growthChunk)
Creates a new hash set with a specified capacity, load factor, and absolute growth factor. 

IntOpenHashSet(IntHashFunction keyhash)
Creates a new hash set with capacity 11, a relative growth factor of 1.0, and a load factor of 75%. 

IntOpenHashSet(IntHashFunction keyhash,
double loadFactor)
Creates a new hash set with a capacity of 11, a relative growth factor of 1.0, and a specified load factor. 

IntOpenHashSet(IntHashFunction keyhash,
int capacity)
Creates a new hash set with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%. 

IntOpenHashSet(IntHashFunction keyhash,
int capacity,
double loadFactor)
Creates a new hash set with a specified capacity and load factor, and a relative growth factor of 1.0. 

IntOpenHashSet(IntHashFunction keyhash,
int capacity,
double loadFactor,
double growthFactor)
Creates a new hash set with a specified capacity, load factor, and relative growth factor. 

IntOpenHashSet(IntHashFunction keyhash,
int capacity,
double loadFactor,
int growthChunk)
Creates a new hash set with a specified capacity, load factor, and absolute growth factor. 
Method Summary  
boolean 
add(int v)
Adds an element to this collection. 
void 
clear()
Clears this collection. 
Object 
clone()
Returns a clone of this hash set. 
boolean 
contains(int v)
Indicates whether this collection contains a specified element. 
int 
hashCode()
Returns a hash code value for this collection. 
IntIterator 
iterator()
Returns an iterator over this collection. 
boolean 
remove(int v)
Removes a specified element from this collection. 
int 
size()
Returns the number of elements in this collection. 
int[] 
toArray(int[] a)
Returns the elements of this collection as an array. 
void 
trimToSize()
Minimizes the memory used by this collection. 
Methods inherited from class bak.pcj.set.AbstractIntSet 
equals 
Methods inherited from class bak.pcj.AbstractIntCollection 
addAll, containsAll, isEmpty, removeAll, retainAll, toArray, toString 
Methods inherited from class java.lang.Object 
finalize, getClass, notify, notifyAll, wait, wait, wait 
Methods inherited from interface bak.pcj.IntCollection 
addAll, containsAll, equals, isEmpty, removeAll, retainAll, toArray 
Field Detail 
public static final double DEFAULT_GROWTH_FACTOR
public static final int DEFAULT_GROWTH_CHUNK
public static final int DEFAULT_CAPACITY
public static final double DEFAULT_LOAD_FACTOR
Constructor Detail 
public IntOpenHashSet()
public IntOpenHashSet(IntCollection c)
c
 the collection whose elements to add to the new
set.
NullPointerException
 if c is null.public IntOpenHashSet(int[] a)
a
 the array whose elements to add to the new
set.
NullPointerException
 if a is null.public IntOpenHashSet(int capacity)
capacity
 the initial capacity of the set.
IllegalArgumentException
 if capacity is negative.public IntOpenHashSet(double loadFactor)
loadFactor
 the load factor of the set.
IllegalArgumentException
 if loadFactor is negative or zero.public IntOpenHashSet(int capacity, double loadFactor)
capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive.public IntOpenHashSet(int capacity, double loadFactor, double growthFactor)
The set capacity increases to capacity()*(1+growthFactor). This strategy is good for avoiding many capacity increases, but the amount of wasted memory is approximately the size of the set.
capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.growthFactor
 the relative amount with which to increase the
the capacity when a capacity increase is needed.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive;
if growthFactor is not positive.public IntOpenHashSet(int capacity, double loadFactor, int growthChunk)
The set capacity increases to capacity()+growthChunk. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases.
capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.growthChunk
 the absolute amount with which to increase the
the capacity when a capacity increase is needed.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive;
if growthChunk is not positive.public IntOpenHashSet(IntHashFunction keyhash)
keyhash
 the hash function to use when hashing keys.
NullPointerException
 if keyhash is null.public IntOpenHashSet(IntHashFunction keyhash, int capacity)
keyhash
 the hash function to use when hashing keys.capacity
 the initial capacity of the set.
IllegalArgumentException
 if capacity is negative.
NullPointerException
 if keyhash is null.public IntOpenHashSet(IntHashFunction keyhash, double loadFactor)
keyhash
 the hash function to use when hashing keys.loadFactor
 the load factor of the set.
IllegalArgumentException
 if loadFactor is negative or zero.
NullPointerException
 if keyhash is null.public IntOpenHashSet(IntHashFunction keyhash, int capacity, double loadFactor)
keyhash
 the hash function to use when hashing keys.capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive.
NullPointerException
 if keyhash is null.public IntOpenHashSet(IntHashFunction keyhash, int capacity, double loadFactor, double growthFactor)
The set capacity increases to capacity()*(1+growthFactor). This strategy is good for avoiding many capacity increases, but the amount of wasted memory is approximately the size of the set.
keyhash
 the hash function to use when hashing keys.capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.growthFactor
 the relative amount with which to increase the
the capacity when a capacity increase is needed.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive;
if growthFactor is not positive.
NullPointerException
 if keyhash is null.public IntOpenHashSet(IntHashFunction keyhash, int capacity, double loadFactor, int growthChunk)
keyhash
 the hash function to use when hashing keys.
The set capacity increases to capacity()+growthChunk. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases.
capacity
 the initial capacity of the set.loadFactor
 the load factor of the set.growthChunk
 the absolute amount with which to increase the
the capacity when a capacity increase is needed.
IllegalArgumentException
 if capacity is negative;
if loadFactor is not positive;
if growthChunk is not positive.
NullPointerException
 if keyhash is null.Method Detail 
public boolean add(int v)
IntCollection
add
in interface IntCollection
add
in class AbstractIntCollection
public IntIterator iterator()
IntCollection
iterator
in interface IntCollection
public void trimToSize()
IntCollection
trimToSize
in interface IntCollection
trimToSize
in class AbstractIntCollection
public Object clone()
public int size()
IntCollection
size
in interface IntCollection
size
in class AbstractIntCollection
public void clear()
IntCollection
clear
in interface IntCollection
clear
in class AbstractIntCollection
public boolean contains(int v)
IntCollection
contains
in interface IntCollection
contains
in class AbstractIntCollection
public int hashCode()
IntCollection
hashCode
in interface IntCollection
hashCode
in class AbstractIntSet
public boolean remove(int v)
IntCollection
remove
in interface IntCollection
remove
in class AbstractIntCollection
public int[] toArray(int[] a)
IntCollection
toArray
in interface IntCollection
toArray
in class AbstractIntCollection

PCJ API Version 1.2 

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