HMapKS (lintools-datatypes 1.1.1 API)

java.lang.Object
- tl.lin.data.map.HMapKS<K>

Type Parameters:

K - the type of keys maintained by this map

All Implemented Interfaces:

Serializable, Cloneable, MapKS<K>
```
public class HMapKS<K>
extends Object
implements MapKS<K>, Cloneable, Serializable
```
Hash-based implementation of the MapKS interface. MapKS is a specialized variant the standard Java Map interface, except that the values are hard coded as floats for efficiency reasons (keys can be arbitrary objects). This implementation was adapted from HashMap version 1.73, 03/13/07.

See Also:

Serialized Form

Field Summary
- Fields inherited from interface tl.lin.data.map.MapKS
  DEFAULT_VALUE

Constructor Summary

Constructors
Constructor and Description
`HMapKS()` Constructs an empty `HMapKS` with the default initial capacity (1024) and the default load factor (0.75).
`HMapKS(int initialCapacity)` Constructs an empty `HMapKS` with the specified initial capacity and the default load factor (0.75).
`HMapKS(int initialCapacity, float loadFactor)` Constructs an empty `HMapKS` with the specified initial capacity and load factor.
`HMapKS(MapKS<? extends K> m)` Constructs a new `HMapKS` with the same mappings as the specified `MapKS`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`clear()` Removes all of the mappings from this map.
`Object`	`clone()` Returns a shallow copy of this `HMapKS` instance: the keys and values themselves are not cloned.
`boolean`	`containsKey(K key)` Returns `true` if this map contains a mapping for the specified key.
`boolean`	`containsValue(short value)` Returns `true` if this map contains one or more mappings with the specified value.
`long`	`dot(MapKS<K> m)` Computes the dot product of this map with another map.
`Set<MapKS.Entry<K>>`	`entrySet()` Returns a `Set` view of the mappings contained in this map.
`short`	`get(K key)` Returns the value to which the specified key is mapped, or throws `NoSuchElementException` if this map contains no mapping for the key.
`void`	`increment(K key)` Increments the key.
`void`	`increment(K key, short value)` Increments the key by some value.
`boolean`	`isEmpty()` Returns `true` if this map contains no key-value mappings.
`Set<K>`	`keySet()` Returns a `Set` view of the keys contained in this map.
`void`	`plus(MapKS<K> m)` Adds values of keys from another map to this map.
`short`	`put(K key, short value)` Associates the specified value with the specified key in this map.
`void`	`putAll(MapKS<? extends K> m)` Copies all of the mappings from the specified map to this map.
`short`	`remove(K key)` Removes the mapping for a key from this map if it is present.
`int`	`size()` Returns the number of key-value mappings in this map.
`String`	`toString()`
`Collection<Short>`	`values()` Returns a `Collection` view of the values contained in this map.

Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface tl.lin.data.map.MapKS
equals, hashCode

- Constructor Detail
  - HMapKS
```
public HMapKS(int initialCapacity,
              float loadFactor)
```
    Constructs an empty HMapKS with the specified initial capacity and load factor.
    
    Parameters:
    
    initialCapacity - the initial capacity
    
    loadFactor - the load factor
    
    Throws:
    
    IllegalArgumentException - if the initial capacity is negative or the load factor is nonpositive
  - HMapKS
```
public HMapKS(int initialCapacity)
```
    Constructs an empty HMapKS with the specified initial capacity and the default load factor (0.75).
    
    Parameters:
    
    initialCapacity - the initial capacity.
    
    Throws:
    
    IllegalArgumentException - if the initial capacity is negative.
  - HMapKS
```
public HMapKS()
```
    Constructs an empty HMapKS with the default initial capacity (1024) and the default load factor (0.75).
  - HMapKS
```
public HMapKS(MapKS<? extends K> m)
```
    Constructs a new HMapKS with the same mappings as the specified MapKS. The HMapKS is created with default load factor (0.75) and an initial capacity sufficient to hold the mappings in the specified MapKS.
    
    Parameters:
    
    m - the map whose mappings are to be placed in this map
    
    Throws:
    
    NullPointerException - if the specified map is null
- Method Detail
  - size
```
public int size()
```
    Description copied from interface: MapKS
    
    Returns the number of key-value mappings in this map.
    
    Specified by:
    
    size in interface MapKS<K>
    
    Returns:
    
    the number of key-value mappings in this map
  - isEmpty
```
public boolean isEmpty()
```
    Description copied from interface: MapKS
    
    Returns true if this map contains no key-value mappings.
    
    Specified by:
    
    isEmpty in interface MapKS<K>
    
    Returns:
    
    true if this map contains no key-value mappings
  - get
```
public short get(K key)
```
    Description copied from interface: MapKS
    
    Returns the value to which the specified key is mapped, or throws NoSuchElementException if this map contains no mapping for the key.
    
    Specified by:
    
    get in interface MapKS<K>
    
    Parameters:
    
    key - the key whose associated value is to be returned
    
    Returns:
    
    the value to which the specified key is mapped
  - containsKey
```
public boolean containsKey(K key)
```
    Description copied from interface: MapKS
    
    Returns true if this map contains a mapping for the specified key.
    
    Specified by:
    
    containsKey in interface MapKS<K>
    
    Parameters:
    
    key - key whose presence in this map is to be tested
    
    Returns:
    
    true if this map contains a mapping for the specified key
  - put
```
public short put(K key,
                 short value)
```
    Description copied from interface: MapKS
    
    Associates the specified value with the specified key in this map. If the map previously contained a mapping for the key, the old value is replaced by the specified value.
    
    Specified by:
    
    put in interface MapKS<K>
    
    Parameters:
    
    key - key with which the specified value is to be associated
    
    value - value to be associated with the specified key
    
    Returns:
    
    the previous value of the key (or the default value, if none)
  - putAll
```
public void putAll(MapKS<? extends K> m)
```
    Description copied from interface: MapKS
    
    Copies all of the mappings from the specified map to this map.
    
    Specified by:
    
    putAll in interface MapKS<K>
    
    Parameters:
    
    m - mappings to be stored in this map
  - remove
```
public short remove(K key)
```
    Description copied from interface: MapKS
    
    Removes the mapping for a key from this map if it is present. No action is performed if this map does not contain the key.
    
    Specified by:
    
    remove in interface MapKS<K>
    
    Parameters:
    
    key - key whose mapping is to be removed from the map
  - clear
```
public void clear()
```
    Description copied from interface: MapKS
    
    Removes all of the mappings from this map. The map will be empty after this call returns.
    
    Specified by:
    
    clear in interface MapKS<K>
  - containsValue
```
public boolean containsValue(short value)
```
    Description copied from interface: MapKS
    
    Returns true if this map contains one or more mappings with the specified value.
    
    Specified by:
    
    containsValue in interface MapKS<K>
    
    Parameters:
    
    value - value whose presence in this map is to be tested
    
    Returns:
    
    true this map contains one or more mappings with the specified value
  - clone
```
public Object clone()
```
    Returns a shallow copy of this HMapKS instance: the keys and values themselves are not cloned.
    
    Overrides:
    
    clone in class Object
    
    Returns:
    
    a shallow copy of this map
  - keySet
```
public Set<K> keySet()
```
    Description copied from interface: MapKS
    
    Returns a Set view of the keys contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
    
    Specified by:
    
    keySet in interface MapKS<K>
    
    Returns:
    
    a set view of the keys contained in this map
  - values
```
public Collection<Short> values()
```
    Description copied from interface: MapKS
    
    Returns a Collection view of the values contained in this map. Note that this is a inefficient operation since it triggers autoboxing of the short values, which is exactly what this implementation is trying to avoid. Unlike a standard Java Map, values in the backing map cannot be altered with this collection view.
    
    Specified by:
    
    values in interface MapKS<K>
    
    Returns:
    
    a collection view of the values contained in this map
  - entrySet
```
public Set<MapKS.Entry<K>> entrySet()
```
    Description copied from interface: MapKS
    
    Returns a Set view of the mappings contained in this map. The set is backed by the map, so changes to the map are reflected in the set, and vice-versa.
    
    Specified by:
    
    entrySet in interface MapKS<K>
    
    Returns:
    
    a set view of the mappings contained in this map
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - plus
```
public void plus(MapKS<K> m)
```
    Description copied from interface: MapKS
    
    Adds values of keys from another map to this map.
    
    Specified by:
    
    plus in interface MapKS<K>
    
    Parameters:
    
    m - the other map
  - dot
```
public long dot(MapKS<K> m)
```
    Description copied from interface: MapKS
    
    Computes the dot product of this map with another map.
    
    Specified by:
    
    dot in interface MapKS<K>
    
    Parameters:
    
    m - the other map
  - increment
```
public void increment(K key)
```
    Description copied from interface: MapKS
    
    Increments the key. If the key does not exist in the map, its value is set to one.
    
    Specified by:
    
    increment in interface MapKS<K>
    
    Parameters:
    
    key - key to increment
  - increment
```
public void increment(K key,
                      short value)
```
    Description copied from interface: MapKS
    
    Increments the key by some value. If the key does not exist in the map, its value is set to the parameter value.
    
    Specified by:
    
    increment in interface MapKS<K>
    
    Parameters:
    
    key - key to increment
    
    value - increment value

Class HMapKS<K>

Field Summary

Fields inherited from interface tl.lin.data.map.MapKS

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface tl.lin.data.map.MapKS

Constructor Detail

HMapKS

HMapKS

HMapKS

HMapKS

Method Detail

size

isEmpty

get

containsKey

put

putAll

remove

clear

containsValue

clone

keySet

values

entrySet

toString

plus

dot

increment

increment