Package gnu.trove
Class TIntHashSet
- java.lang.Object
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- gnu.trove.THash
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- gnu.trove.TPrimitiveHash
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- gnu.trove.TIntHash
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- gnu.trove.TIntHashSet
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- All Implemented Interfaces:
TIntHashingStrategy
,java.io.Externalizable
,java.io.Serializable
,java.lang.Cloneable
public class TIntHashSet extends TIntHash implements java.io.Externalizable
An open addressed set implementation for int primitives.- Author:
- Eric D. Friedman, Rob Eden
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class gnu.trove.TIntHash
_hashingStrategy, _set
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Fields inherited from class gnu.trove.TPrimitiveHash
_states, FREE, FULL, REMOVED
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Fields inherited from class gnu.trove.THash
_autoCompactionFactor, _autoCompactRemovesRemaining, _free, _loadFactor, _maxSize, _size, DEFAULT_INITIAL_CAPACITY, DEFAULT_LOAD_FACTOR
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Constructor Summary
Constructors Constructor Description TIntHashSet()
Creates a newTIntHashSet
instance with the default capacity and load factor.TIntHashSet(int initialCapacity)
Creates a newTIntHashSet
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.TIntHashSet(int[] array)
Creates a newTIntHashSet
instance containing the elements of array.TIntHashSet(int[] array, TIntHashingStrategy strategy)
Creates a newTIntHashSet
instance containing the elements of array.TIntHashSet(int initialCapacity, float loadFactor)
Creates a newTIntHashSet
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.TIntHashSet(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)
Creates a newTIntHash
instance with a prime value at or near the specified capacity and load factor.TIntHashSet(int initialCapacity, TIntHashingStrategy strategy)
Creates a newTIntHash
instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.TIntHashSet(TIntHashingStrategy strategy)
Creates a newTIntHash
instance with the default capacity and load factor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
add(int val)
Inserts a value into the set.boolean
addAll(int[] array)
Adds all of the elements in array to the set.void
clear()
Empties the set.boolean
containsAll(int[] array)
Tests the set to determine if all of the elements in array are present.boolean
equals(java.lang.Object other)
Compares this set with another set for equality of their stored entries.int
hashCode()
TIntIterator
iterator()
void
readExternal(java.io.ObjectInput in)
protected void
rehash(int newCapacity)
Expands the set to accommodate new values.boolean
remove(int val)
Removes val from the set.boolean
removeAll(int[] array)
Removes all of the elements in array from the set.boolean
retainAll(int[] array)
Removes any values in the set which are not contained in array.int[]
toArray()
Returns a new array containing the values in the set.void
writeExternal(java.io.ObjectOutput out)
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Methods inherited from class gnu.trove.TIntHash
clone, computeHashCode, contains, forEach, index, insertionIndex, removeAt, setUp
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Methods inherited from class gnu.trove.TPrimitiveHash
capacity
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Methods inherited from class gnu.trove.THash
calculateGrownCapacity, compact, ensureCapacity, getAutoCompactionFactor, isEmpty, postInsertHook, reenableAutoCompaction, setAutoCompactionFactor, size, tempDisableAutoCompaction, trimToSize
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Constructor Detail
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TIntHashSet
public TIntHashSet()
Creates a newTIntHashSet
instance with the default capacity and load factor.
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TIntHashSet
public TIntHashSet(int initialCapacity)
Creates a newTIntHashSet
instance with a prime capacity equal to or greater than initialCapacity and with the default load factor.- Parameters:
initialCapacity
- anint
value
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TIntHashSet
public TIntHashSet(int initialCapacity, float loadFactor)
Creates a newTIntHashSet
instance with a prime capacity equal to or greater than initialCapacity and with the specified load factor.- Parameters:
initialCapacity
- anint
valueloadFactor
- afloat
value
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TIntHashSet
public TIntHashSet(int[] array)
Creates a newTIntHashSet
instance containing the elements of array.- Parameters:
array
- an array ofint
primitives
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TIntHashSet
public TIntHashSet(TIntHashingStrategy strategy)
Creates a newTIntHash
instance with the default capacity and load factor.- Parameters:
strategy
- used to compute hash codes and to compare keys.
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TIntHashSet
public TIntHashSet(int initialCapacity, TIntHashingStrategy strategy)
Creates a newTIntHash
instance whose capacity is the next highest prime above initialCapacity + 1 unless that value is already prime.- Parameters:
initialCapacity
- anint
valuestrategy
- used to compute hash codes and to compare keys.
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TIntHashSet
public TIntHashSet(int initialCapacity, float loadFactor, TIntHashingStrategy strategy)
Creates a newTIntHash
instance with a prime value at or near the specified capacity and load factor.- Parameters:
initialCapacity
- used to find a prime capacity for the table.loadFactor
- used to calculate the threshold over which rehashing takes place.strategy
- used to compute hash codes and to compare keys.
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TIntHashSet
public TIntHashSet(int[] array, TIntHashingStrategy strategy)
Creates a newTIntHashSet
instance containing the elements of array.- Parameters:
array
- an array ofint
primitivesstrategy
- used to compute hash codes and to compare keys.
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Method Detail
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iterator
public TIntIterator iterator()
- Returns:
- a TIntIterator with access to the values in this set
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add
public boolean add(int val)
Inserts a value into the set.- Parameters:
val
- anint
value- Returns:
- true if the set was modified by the add operation
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rehash
protected void rehash(int newCapacity)
Expands the set to accommodate new values.
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toArray
public int[] toArray()
Returns a new array containing the values in the set.- Returns:
- an
int[]
value
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equals
public boolean equals(java.lang.Object other)
Compares this set with another set for equality of their stored entries.- Overrides:
equals
in classjava.lang.Object
- Parameters:
other
- anObject
value- Returns:
- a
boolean
value
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hashCode
public int hashCode()
- Overrides:
hashCode
in classjava.lang.Object
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remove
public boolean remove(int val)
Removes val from the set.- Parameters:
val
- anint
value- Returns:
- true if the set was modified by the remove operation.
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containsAll
public boolean containsAll(int[] array)
Tests the set to determine if all of the elements in array are present.- Parameters:
array
- anarray
of int primitives.- Returns:
- true if all elements were present in the set.
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addAll
public boolean addAll(int[] array)
Adds all of the elements in array to the set.- Parameters:
array
- anarray
of int primitives.- Returns:
- true if the set was modified by the add all operation.
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removeAll
public boolean removeAll(int[] array)
Removes all of the elements in array from the set.- Parameters:
array
- anarray
of int primitives.- Returns:
- true if the set was modified by the remove all operation.
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retainAll
public boolean retainAll(int[] array)
Removes any values in the set which are not contained in array.- Parameters:
array
- anarray
of int primitives.- Returns:
- true if the set was modified by the retain all operation
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writeExternal
public void writeExternal(java.io.ObjectOutput out) throws java.io.IOException
- Specified by:
writeExternal
in interfacejava.io.Externalizable
- Overrides:
writeExternal
in classTHash
- Throws:
java.io.IOException
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readExternal
public void readExternal(java.io.ObjectInput in) throws java.io.IOException, java.lang.ClassNotFoundException
- Specified by:
readExternal
in interfacejava.io.Externalizable
- Overrides:
readExternal
in classTHash
- Throws:
java.io.IOException
java.lang.ClassNotFoundException
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