Class IntKeyOpenHashMap<V>
- All Implemented Interfaces:
Serializable
,Cloneable
,IntKeyMap<V>
- Since:
- 1.0
- See Also:
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IntKeyChainedHashMap
Map
- Serialized Form
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Field Summary
Modifier and TypeFieldDescriptionstatic final int
The default capacity of this map.static final int
The default chunk size with which to increase the capacity of this map.static final double
The default factor with which to increase the capacity of this map.static final double
The default load factor of this map. -
Constructor Summary
ConstructorDescriptionCreates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.IntKeyOpenHashMap
(double loadFactor) Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.IntKeyOpenHashMap
(int capacity) Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.IntKeyOpenHashMap
(int capacity, double loadFactor) Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.IntKeyOpenHashMap
(int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.IntKeyOpenHashMap
(int capacity, double loadFactor, int growthChunk) Creates a new hash map with a specified capacity, load factor, and absolute growth factor.IntKeyOpenHashMap
(IntHashFunction keyhash) Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.IntKeyOpenHashMap
(IntHashFunction keyhash, double loadFactor) Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.IntKeyOpenHashMap
(IntHashFunction keyhash, int capacity) Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.IntKeyOpenHashMap
(IntHashFunction keyhash, int capacity, double loadFactor) Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.IntKeyOpenHashMap
(IntHashFunction keyhash, int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.IntKeyOpenHashMap
(IntHashFunction keyhash, int capacity, double loadFactor, int growthChunk) Creates a new hash map with a specified capacity, load factor, and absolute growth factor.IntKeyOpenHashMap
(IntKeyMap<V> map) Creates a new hash map with the same mappings as a specified map. -
Method Summary
Modifier and TypeMethodDescriptionvoid
clear()
Clears this map.clone()
Returns a clone of this hash map.boolean
containsKey
(int key) Indicates whether this map contains a mapping from a specified key.boolean
containsValue
(Object value) Indicates whether this map contains a mapping to a specified value.entries()
Returns an iterator over the entries of this map.get
(int key) Maps a specified key to a value.boolean
isEmpty()
Indicates whether this map is empty.keySet()
Returns a set view of the keys of this map.Adds a mapping from a specified key to a specified value to this map.remove
(int key) Removes the mapping from a specified key from this map.int
size()
Returns the size of this map.values()
Returns a collection view of the values in this map.Methods inherited from class zombie.util.map.AbstractIntKeyMap
equals, hashCode, putAll, toString, trimToSize
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Field Details
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DEFAULT_GROWTH_FACTOR
public static final double DEFAULT_GROWTH_FACTORThe default factor with which to increase the capacity of this map.- See Also:
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DEFAULT_GROWTH_CHUNK
public static final int DEFAULT_GROWTH_CHUNKThe default chunk size with which to increase the capacity of this map.- See Also:
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DEFAULT_CAPACITY
public static final int DEFAULT_CAPACITYThe default capacity of this map.- See Also:
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DEFAULT_LOAD_FACTOR
public static final double DEFAULT_LOAD_FACTORThe default load factor of this map.- See Also:
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Constructor Details
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IntKeyOpenHashMap
public IntKeyOpenHashMap()Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%. -
IntKeyOpenHashMap
Creates a new hash map with the same mappings as a specified map.- Parameters:
map
- the map whose mappings to put into the new map.- Throws:
NullPointerException
- if map is null.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(int capacity) Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.- Parameters:
capacity
- the initial capacity of the map.- Throws:
IllegalArgumentException
- if capacity is negative.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(double loadFactor) Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.- Parameters:
loadFactor
- the load factor of the map.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(int capacity, double loadFactor) Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.- Parameters:
capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.The map 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 map.
- Parameters:
capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.growthFactor
- the relative amount with which to increase the the capacity when a capacity increase is needed.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive; if growthFactor is not positive.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(int capacity, double loadFactor, int growthChunk) Creates a new hash map with a specified capacity, load factor, and absolute growth factor.The map capacity increases to capacity()+growthChunk. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases.
- Parameters:
capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.growthChunk
- the absolute amount with which to increase the the capacity when a capacity increase is needed.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive; if growthChunk is not positive.
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IntKeyOpenHashMap
Creates a new hash map with capacity 11, a relative growth factor of 1.0, and a load factor of 75%.- Parameters:
keyhash
- the hash function to use when hashing keys.- Throws:
NullPointerException
- if keyhash is null.
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IntKeyOpenHashMap
Creates a new hash map with a specified capacity, a relative growth factor of 1.0, and a load factor of 75%.- Parameters:
keyhash
- the hash function to use when hashing keys.capacity
- the initial capacity of the map.- Throws:
IllegalArgumentException
- if capacity is negative.NullPointerException
- if keyhash is null.
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IntKeyOpenHashMap
Creates a new hash map with a capacity of 11, a relative growth factor of 1.0, and a specified load factor.- Parameters:
keyhash
- the hash function to use when hashing keys.loadFactor
- the load factor of the map.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive.NullPointerException
- if keyhash is null.
-
IntKeyOpenHashMap
Creates a new hash map with a specified capacity and load factor, and a relative growth factor of 1.0.- Parameters:
keyhash
- the hash function to use when hashing keys.capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive.NullPointerException
- if keyhash is null.
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IntKeyOpenHashMap
public IntKeyOpenHashMap(IntHashFunction keyhash, int capacity, double loadFactor, double growthFactor) Creates a new hash map with a specified capacity, load factor, and relative growth factor.The map 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 map.
- Parameters:
keyhash
- the hash function to use when hashing keys.capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.growthFactor
- the relative amount with which to increase the the capacity when a capacity increase is needed.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive; if growthFactor is not positive.NullPointerException
- if keyhash is null.
-
IntKeyOpenHashMap
Creates a new hash map with a specified capacity, load factor, and absolute growth factor.The map capacity increases to capacity()+growthChunk. This strategy is good for avoiding wasting memory. However, an overhead is potentially introduced by frequent capacity increases.
- Parameters:
keyhash
- the hash function to use when hashing keys.capacity
- the initial capacity of the map.loadFactor
- the load factor of the map.growthChunk
- the absolute amount with which to increase the the capacity when a capacity increase is needed.- Throws:
IllegalArgumentException
- if capacity is negative; if loadFactor is not positive; if growthChunk is not positive.NullPointerException
- if keyhash is null.
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Method Details
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keySet
Description copied from interface:IntKeyMap
Returns a set view of the keys of this map. The set is not directly modifiable, but changes to the map are reflected in the set. -
put
Description copied from interface:IntKeyMap
Adds a mapping from a specified key to a specified value to this map. If a mapping already exists for the specified key it is overwritten by the new mapping. -
values
Description copied from interface:IntKeyMap
Returns a collection view of the values in this map. The collection is not modifiable, but changes to the map are reflected in the collection. -
clone
Returns a clone of this hash map.- Returns:
- a clone of this hash map.
- Since:
- 1.1
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entries
Description copied from interface:IntKeyMap
Returns an iterator over the entries of this map. It is possible to remove entries from this map using the iterator provided that the concrete map supports removal of entries. -
clear
public void clear()Description copied from interface:IntKeyMap
Clears this map. -
containsKey
public boolean containsKey(int key) Description copied from interface:IntKeyMap
Indicates whether this map contains a mapping from a specified key.- Specified by:
containsKey
in interfaceIntKeyMap<V>
- Overrides:
containsKey
in classAbstractIntKeyMap<V>
- Parameters:
key
- the key to test for.- Returns:
- true if this map contains a mapping from the specified key; returns false otherwise.
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containsValue
Description copied from interface:IntKeyMap
Indicates whether this map contains a mapping to a specified value.- Specified by:
containsValue
in interfaceIntKeyMap<V>
- Overrides:
containsValue
in classAbstractIntKeyMap<V>
- Parameters:
value
- the value to test for.- Returns:
- true if this map contains at least one mapping to the specified value; returns false otherwise.
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get
Description copied from interface:IntKeyMap
Maps a specified key to a value. -
isEmpty
public boolean isEmpty()Description copied from interface:IntKeyMap
Indicates whether this map is empty. -
remove
Description copied from interface:IntKeyMap
Removes the mapping from a specified key from this map. -
size
public int size()Description copied from interface:IntKeyMap
Returns the size of this map. The size is defined as the number of mappings from keys to values.
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