OpenIntFloatHashMap (Parallel Colt 0.10.1

java.lang.Object
- cern.colt.PersistentObject
- - cern.colt.map.AbstractMap
  - - cern.colt.map.tfloat.AbstractIntFloatMap
    - - cern.colt.map.tfloat.OpenIntFloatHashMap

All Implemented Interfaces:

Serializable, Cloneable
```
public class OpenIntFloatHashMap
extends AbstractIntFloatMap
```
Hash map holding (key,value) associations of type (int-->float); Automatically grows and shrinks as needed; Implemented using open addressing with float hashing. First see the package summary and javadoc tree view to get the broad picture. Overrides many methods for performance reasons only.

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:
HashMap, Serialized Form

Constructor Summary

Constructors
Constructor and Description
`OpenIntFloatHashMap()` Constructs an empty map with default capacity and default load factors.
`OpenIntFloatHashMap(int initialCapacity)` Constructs an empty map with the specified initial capacity and default load factors.
`OpenIntFloatHashMap(int initialCapacity, double minLoadFactor, double maxLoadFactor)` Constructs an empty map with the specified initial capacity and the specified minimum and maximum load factor.

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`assign(AbstractIntFloatMap other)` Clears the receiver, then adds all (key,value) pairs of `other` values to it.
`void`	`assign(FloatFunction function)` Assigns the result of a function to each value; `v[i] = function(v[i])`.
`void`	`clear()` Removes all (key,value) associations from the receiver.
`Object`	`clone()` Returns a deep copy of the receiver.
`boolean`	`containsKey(int key)` Returns `true` if the receiver contains the specified key.
`boolean`	`containsValue(float value)` Returns `true` if the receiver contains the specified value.
`void`	`ensureCapacity(int minCapacity)` Ensures that the receiver can hold at least the specified number of associations without needing to allocate new internal memory.
`boolean`	`forEachKey(IntProcedure procedure)` Applies a procedure to each key of the receiver, if any.
`boolean`	`forEachPair(IntFloatProcedure procedure)` Applies a procedure to each (key,value) pair of the receiver, if any.
`float`	`get(int key)` Returns the value associated with the specified key.
`int`	`keyOf(float value)` Returns the first key the given value is associated with.
`void`	`keys(IntArrayList list)` Fills all keys contained in the receiver into the specified list.
`void`	`pairsMatching(IntFloatProcedure condition, IntArrayList keyList, FloatArrayList valueList)` Fills all pairs satisfying a given condition into the specified lists.
`boolean`	`put(int key, float value)` Associates the given key with the given value.
`boolean`	`removeKey(int key)` Removes the given key with its associated element from the receiver, if present.
`void`	`trimToSize()` Trims the capacity of the receiver to be the receiver's current size.
`void`	`values(FloatArrayList list)` Fills all values contained in the receiver into the specified list.

Methods inherited from class cern.colt.map.tfloat.AbstractIntFloatMap
copy, equals, keys, keysSortedByValue, pairsSortedByKey, pairsSortedByValue, toString, toStringByValue, values

Methods inherited from class cern.colt.map.AbstractMap
isEmpty, size

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

- Constructor Detail
  - OpenIntFloatHashMap
```
public OpenIntFloatHashMap()
```
    Constructs an empty map with default capacity and default load factors.
  - OpenIntFloatHashMap
```
public OpenIntFloatHashMap(int initialCapacity)
```
    Constructs an empty map with the specified initial capacity and default load factors.
    
    Parameters:
    initialCapacity - the initial capacity of the map.
    
    Throws:
    
    IllegalArgumentException - if the initial capacity is less than zero.
  - OpenIntFloatHashMap
```
public OpenIntFloatHashMap(int initialCapacity,
                   double minLoadFactor,
                   double maxLoadFactor)
```
    Constructs an empty map with the specified initial capacity and the specified minimum and maximum load factor.
    
    Parameters:
    initialCapacity - the initial capacity.
    minLoadFactor - the minimum load factor.
    maxLoadFactor - the maximum load factor.
    
    Throws:
    
    IllegalArgumentException - if initialCapacity < 0 || (minLoadFactor < 0.0 || minLoadFactor >= 1.0) || (maxLoadFactor <= 0.0 || maxLoadFactor >= 1.0) || (minLoadFactor >= maxLoadFactor) .
- Method Detail
  - assign
```
public void assign(FloatFunction function)
```
    Assigns the result of a function to each value; v[i] = function(v[i]).
    
    Overrides:
    
    assign in class AbstractIntFloatMap
    
    Parameters:
    function - a function object taking as argument the current association's value.
  - assign
```
public void assign(AbstractIntFloatMap other)
```
    Clears the receiver, then adds all (key,value) pairs of other values to it.
    
    Overrides:
    
    assign in class AbstractIntFloatMap
    
    Parameters:
    other - the other map to be copied into the receiver.
  - clear
```
public void clear()
```
    Removes all (key,value) associations from the receiver. Implicitly calls trimToSize().
    
    Specified by:
    
    clear in class AbstractMap
  - clone
```
public Object clone()
```
    Returns a deep copy of the receiver.
    
    Overrides:
    
    clone in class PersistentObject
    
    Returns:
    a deep copy of the receiver.
  - containsKey
```
public boolean containsKey(int key)
```
    Returns true if the receiver contains the specified key.
    
    Overrides:
    
    containsKey in class AbstractIntFloatMap
    
    Returns:
    true if the receiver contains the specified key.
  - containsValue
```
public boolean containsValue(float value)
```
    Returns true if the receiver contains the specified value.
    
    Overrides:
    
    containsValue in class AbstractIntFloatMap
    
    Returns:
    true if the receiver contains the specified value.
  - ensureCapacity
```
public void ensureCapacity(int minCapacity)
```
    Ensures that the receiver can hold at least the specified number of associations without needing to allocate new internal memory. If necessary, allocates new internal memory and increases the capacity of the receiver.
    This method never need be called; it is for performance tuning only. Calling this method before put()ing a large number of associations boosts performance, because the receiver will grow only once instead of potentially many times and hash collisions get less probable.
    
    Overrides:
    
    ensureCapacity in class AbstractMap
    
    Parameters:
    minCapacity - the desired minimum capacity.
  - forEachKey
```
public boolean forEachKey(IntProcedure procedure)
```
    Applies a procedure to each key of the receiver, if any. Note: Iterates over the keys in no particular order. Subclasses can define a particular order, for example, "sorted by key". All methods which can be expressed in terms of this method (most methods can) must guarantee to use the same order defined by this method, even if it is no particular order. This is necessary so that, for example, methods keys and values will yield association pairs, not two uncorrelated lists.
    
    Specified by:
    
    forEachKey in class AbstractIntFloatMap
    
    Parameters:
    procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise continues.
    
    Returns:
    false if the procedure stopped before all keys where iterated over, true otherwise.
  - forEachPair
```
public boolean forEachPair(IntFloatProcedure procedure)
```
    Applies a procedure to each (key,value) pair of the receiver, if any. Iteration order is guaranteed to be identical to the order used by method forEachKey(IntProcedure).
    
    Overrides:
    
    forEachPair in class AbstractIntFloatMap
    
    Parameters:
    procedure - the procedure to be applied. Stops iteration if the procedure returns false, otherwise continues.
    
    Returns:
    false if the procedure stopped before all keys where iterated over, true otherwise.
  - get
```
public float get(int key)
```
    Returns the value associated with the specified key. It is often a good idea to first check with containsKey(int) whether the given key has a value associated or not, i.e. whether there exists an association for the given key or not.
    
    Specified by:
    
    get in class AbstractIntFloatMap
    
    Parameters:
    key - the key to be searched for.
    
    Returns:
    the value associated with the specified key; 0 if no such key is present.
  - keyOf
```
public int keyOf(float value)
```
    Returns the first key the given value is associated with. It is often a good idea to first check with containsValue(float) whether there exists an association from a key to this value. Search order is guaranteed to be identical to the order used by method forEachKey(IntProcedure).
    
    Overrides:
    
    keyOf in class AbstractIntFloatMap
    
    Parameters:
    value - the value to search for.
    
    Returns:
    the first key for which holds get(key) == value; returns Integer.MIN_VALUE if no such key exists.
  - keys
```
public void keys(IntArrayList list)
```
    Fills all keys contained in the receiver into the specified list. Fills the list, starting at index 0. After this call returns the specified list has a new size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(IntProcedure).
    This method can be used to iterate over the keys of the receiver.
    
    Overrides:
    
    keys in class AbstractIntFloatMap
    
    Parameters:
    list - the list to be filled, can have any size.
  - pairsMatching
```
public void pairsMatching(IntFloatProcedure condition,
                 IntArrayList keyList,
                 FloatArrayList valueList)
```
    Fills all pairs satisfying a given condition into the specified lists. Fills into the lists, starting at index 0. After this call returns the specified lists both have a new size, the number of pairs satisfying the condition. Iteration order is guaranteed to be identical to the order used by method forEachKey(IntProcedure).
    Example:
```
         IntFloatProcedure condition = new IntFloatProcedure() { // match even keys only
         public boolean apply(int key, float value) { return key%2==0; }
         }
         keys = (8,7,6), values = (1,2,2) --> keyList = (6,8), valueList = (2,1)
 </tt>
 
```
    Overrides:
    
    pairsMatching in class AbstractIntFloatMap
    
    Parameters:
    condition - the condition to be matched. Takes the current key as first and the current value as second argument.
    keyList - the list to be filled with keys, can have any size.
    valueList - the list to be filled with values, can have any size.
  - put
```
public boolean put(int key,
          float value)
```
    Associates the given key with the given value. Replaces any old (key,someOtherValue) association, if existing.
    
    Specified by:
    
    put in class AbstractIntFloatMap
    
    Parameters:
    key - the key the value shall be associated with.
    value - the value to be associated.
    
    Returns:
    true if the receiver did not already contain such a key; false if the receiver did already contain such a key - the new value has now replaced the formerly associated value.
  - removeKey
```
public boolean removeKey(int key)
```
    Removes the given key with its associated element from the receiver, if present.
    
    Specified by:
    
    removeKey in class AbstractIntFloatMap
    
    Parameters:
    key - the key to be removed from the receiver.
    
    Returns:
    true if the receiver contained the specified key, false otherwise.
  - trimToSize
```
public void trimToSize()
```
    Trims the capacity of the receiver to be the receiver's current size. Releases any superfluous internal memory. An application can use this operation to minimize the storage of the receiver.
    
    Overrides:
    
    trimToSize in class AbstractMap
  - values
```
public void values(FloatArrayList list)
```
    Fills all values contained in the receiver into the specified list. Fills the list, starting at index 0. After this call returns the specified list has a new size that equals this.size(). Iteration order is guaranteed to be identical to the order used by method forEachKey(IntProcedure).
    This method can be used to iterate over the values of the receiver.
    
    Overrides:
    
    values in class AbstractIntFloatMap
    
    Parameters:
    list - the list to be filled, can have any size.

Class OpenIntFloatHashMap

Constructor Summary

Method Summary

Methods inherited from class cern.colt.map.tfloat.AbstractIntFloatMap

Methods inherited from class cern.colt.map.AbstractMap

Methods inherited from class java.lang.Object

Constructor Detail

OpenIntFloatHashMap

OpenIntFloatHashMap

OpenIntFloatHashMap

Method Detail

assign

assign

clear

clone

containsKey

containsValue

ensureCapacity

forEachKey

forEachPair

get

keyOf

keys

pairsMatching

put

removeKey

trimToSize

values