public class Int2ShortArrayMap extends AbstractInt2ShortMap implements Serializable, Cloneable
The main purpose of this implementation is that of wrapping cleanly the brute-force approach to the storage of a very small number of pairs: just put them into two parallel arrays and scan linearly to find an item.
AbstractInt2ShortMap.BasicEntryInt2ShortMap.Entry, Int2ShortMap.FastEntrySet| Constructor and Description |
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Int2ShortArrayMap()
Creates a new empty array map.
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Int2ShortArrayMap(int capacity)
Creates a new empty array map of given capacity.
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Int2ShortArrayMap(int[] key,
short[] value)
Creates a new empty array map with given key and value backing arrays.
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Int2ShortArrayMap(int[] key,
short[] value,
int size)
Creates a new array map with given key and value backing arrays, using the given number of elements.
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Int2ShortArrayMap(Int2ShortMap m)
Creates a new empty array map copying the entries of a given map.
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Int2ShortArrayMap(Map<? extends Integer,? extends Short> m)
Creates a new empty array map copying the entries of a given map.
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| Modifier and Type | Method and Description |
|---|---|
void |
clear()
Removes all associations from this function (optional operation).
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Int2ShortArrayMap |
clone()
Returns a deep copy of this map.
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boolean |
containsKey(int k)
Checks whether the given value is contained in
AbstractInt2ShortMap.keySet(). |
boolean |
containsValue(short v)
Checks whether the given value is contained in
AbstractInt2ShortMap.values(). |
short |
get(int k)
Returns the value to which the given key is mapped.
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Int2ShortMap.FastEntrySet |
int2ShortEntrySet()
Returns a type-specific set view of the mappings contained in this map.
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boolean |
isEmpty() |
IntSet |
keySet()
Returns a type-specific-set view of the keys of this map.
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short |
put(int k,
short v)
Adds a pair to the map.
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short |
remove(int k)
Removes the mapping with the given key.
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int |
size()
Returns the intended number of keys in this function, or -1 if no such number exists.
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ShortCollection |
values()
Returns a type-specific-set view of the values of this map.
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containsValue, entrySet, equals, hashCode, putAll, toStringcontainsKey, defaultReturnValue, defaultReturnValue, get, put, removedefaultReturnValue, defaultReturnValuecontainsKey, get, put, removecompute, computeIfAbsent, computeIfPresent, containsKey, forEach, get, getOrDefault, merge, put, putIfAbsent, remove, remove, replace, replace, replaceAllpublic Int2ShortArrayMap(int[] key,
short[] value)
It is responsibility of the caller that the elements of key are distinct.
key - the key array.value - the value array (it must have the same length as key).public Int2ShortArrayMap()
public Int2ShortArrayMap(int capacity)
capacity - the initial capacity.public Int2ShortArrayMap(Int2ShortMap m)
m - a map.public Int2ShortArrayMap(Map<? extends Integer,? extends Short> m)
m - a map.public Int2ShortArrayMap(int[] key,
short[] value,
int size)
It is responsibility of the caller that the first size elements of key are distinct.
key - the key array.value - the value array (it must have the same length as key).size - the number of valid elements in key and value.public Int2ShortMap.FastEntrySet int2ShortEntrySet()
Int2ShortMapThis method is necessary because there is no inheritance along type parameters: it is thus impossible to strengthen Int2ShortMap.entrySet() so that it returns an
ObjectSet of objects of type Map.Entry (the latter makes it possible to access keys and values with type-specific methods).
int2ShortEntrySet in interface Int2ShortMapInt2ShortMap.entrySet()public short get(int k)
Int2ShortFunctionget in interface Int2ShortFunctionk - the key.Function.get(Object)public int size()
FunctionMost function implementations will have some knowledge of the intended number of keys in their domain. In some cases, however, this might not be possible.
public void clear()
Functionpublic boolean containsKey(int k)
AbstractInt2ShortMapAbstractInt2ShortMap.keySet().containsKey in interface Int2ShortFunctioncontainsKey in class AbstractInt2ShortMapFunction.containsKey(Object)public boolean containsValue(short v)
AbstractInt2ShortMapAbstractInt2ShortMap.values().containsValue in interface Int2ShortMapcontainsValue in class AbstractInt2ShortMapMap.containsValue(Object)public boolean isEmpty()
public short put(int k,
short v)
Int2ShortFunctionput in interface Int2ShortFunctionput in class AbstractInt2ShortFunctionk - the key.v - the value.Function.put(Object,Object)public short remove(int k)
Int2ShortFunctionremove in interface Int2ShortFunctionremove in class AbstractInt2ShortFunctionk - the key.Function.remove(Object)public IntSet keySet()
AbstractInt2ShortMapThe view is backed by the set returned by AbstractInt2ShortMap.entrySet(). Note that no attempt is made at caching the result of this method, as this would require adding some attributes that
lightweight implementations would not need. Subclasses may easily override this policy by calling this method and caching the result, but implementors are encouraged to write more efficient
ad-hoc implementations.
keySet in interface Int2ShortMapkeySet in interface Map<Integer,Short>keySet in class AbstractInt2ShortMapMap.keySet()public ShortCollection values()
AbstractInt2ShortMapThe view is backed by the set returned by AbstractInt2ShortMap.entrySet(). Note that no attempt is made at caching the result of this method, as this would require adding some attributes that
lightweight implementations would not need. Subclasses may easily override this policy by calling this method and caching the result, but implementors are encouraged to write more efficient
ad-hoc implementations.
values in interface Int2ShortMapvalues in interface Map<Integer,Short>values in class AbstractInt2ShortMapMap.values()public Int2ShortArrayMap clone()
This method performs a deep copy of this hash map; the data stored in the map, however, is not cloned. Note that this makes a difference only for object keys.