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java.lang.Object com.badlogic.gdx.utils.IntIntMap
public class IntIntMap
An unordered map where the keys and values are ints. This implementation is a cuckoo hash map using 3 hashes, random walking,
and a small stash for problematic keys. No allocation is done except when growing the table size.
This map performs very fast get, containsKey, and remove (typically O(1), worst case O(log(n))). Put may be a bit slower,
depending on hash collisions. Load factors greater than 0.91 greatly increase the chances the map will have to rehash to the
next higher POT size.
Nested Class Summary | |
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static class |
IntIntMap.Entries
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static class |
IntIntMap.Entry<K>
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static class |
IntIntMap.Keys
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static class |
IntIntMap.Values
|
Field Summary | |
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int |
size
|
Constructor Summary | |
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IntIntMap()
Creates a new map with an initial capacity of 32 and a load factor of 0.8. |
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IntIntMap(int initialCapacity)
Creates a new map with a load factor of 0.8. |
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IntIntMap(int initialCapacity,
float loadFactor)
Creates a new map with the specified initial capacity and load factor. |
Method Summary | |
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void |
clear()
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void |
clear(int maximumCapacity)
Clears the map and reduces the size of the backing arrays to be the specified capacity if they are larger. |
boolean |
containsKey(int key)
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boolean |
containsValue(int value)
Returns true if the specified value is in the map. |
void |
ensureCapacity(int additionalCapacity)
Increases the size of the backing array to acommodate the specified number of additional items. |
IntIntMap.Entries |
entries()
Returns an iterator for the entries in the map. |
int |
findKey(int value,
int notFound)
Returns the key for the specified value, or null if it is not in the map. |
int |
get(int key,
int defaultValue)
|
int |
getAndIncrement(int key,
int defaultValue,
int increment)
Returns the key's current value and increments the stored value. |
IntIntMap.Keys |
keys()
Returns an iterator for the keys in the map. |
void |
put(int key,
int value)
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void |
putAll(IntIntMap map)
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int |
remove(int key,
int defaultValue)
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void |
shrink(int maximumCapacity)
Reduces the size of the backing arrays to be the specified capacity or less. |
String |
toString()
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IntIntMap.Values |
values()
Returns an iterator for the values in the map. |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public int size
Constructor Detail |
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public IntIntMap()
public IntIntMap(int initialCapacity)
public IntIntMap(int initialCapacity, float loadFactor)
Method Detail |
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public void put(int key, int value)
public void putAll(IntIntMap map)
public int get(int key, int defaultValue)
defaultValue
- Returned if the key was not associated with a value.public int getAndIncrement(int key, int defaultValue, int increment)
public int remove(int key, int defaultValue)
public void shrink(int maximumCapacity)
public void clear(int maximumCapacity)
public void clear()
public boolean containsValue(int value)
public boolean containsKey(int key)
public int findKey(int value, int notFound)
public void ensureCapacity(int additionalCapacity)
public String toString()
toString
in class Object
public IntIntMap.Entries entries()
IntFloatMap.Entries
constructor for nested or multithreaded iteration.
public IntIntMap.Values values()
IntFloatMap.Entries
constructor for nested or multithreaded iteration.
public IntIntMap.Keys keys()
IntFloatMap.Entries
constructor for nested or multithreaded iteration.
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