Long2IntOpenHashMap (presto-common 0.272 API)

java.lang.Object
- com.facebook.presto.common.array.Long2IntOpenHashMap

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

ReferenceCountMap
```
public class Long2IntOpenHashMap
extends Object
implements Serializable, Cloneable
```
This class is adapted from it.unimi.dsi.fastutil.longs.Long2IntOpenHashMap. Same as the original Long2IntOpenHashMap, it treats key 0 as null. The initial value for any key is defined as defRetValue, and can be set through setDefaultReturnValue(). By default it is 0. Not thread safe.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field and Description
`protected boolean`	`containsNullKey`
`protected int`	`defRetValue`
`protected static float`	`FILL_FACTOR`
`protected static int`	`INITIAL_ELEMENT_COUNT`
`protected long[]`	`key`
`protected int`	`mask`
`protected int`	`maxFill`
`protected int`	`minN`
`protected int`	`n`
`protected int`	`size`
`protected int[]`	`value`

Constructor Summary

Constructors
Constructor and Description

Long2IntOpenHashMap()

Constructors
Constructor and Description
`Long2IntOpenHashMap()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`addTo(long k, int incr)` Add incr to the existing value for key k.
`int`	`get(long k)` Get the value for key k
`int`	`getDefaultReturnValue()`
`static long`	`mix(long x)`
`protected void`	`rehash(int newN)`
`int`	`remove(long k)` Remove key k and its corresponding value from the map
`void`	`setDefaultReturnValue(int rv)`
`protected void`	`shiftKeys(int pos)`
`int`	`size()` Return the number of entries in the map

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

- Field Detail
  - FILL_FACTOR
```
protected static final float FILL_FACTOR
```
    See Also:
    
    Constant Field Values
  - INITIAL_ELEMENT_COUNT
```
protected static final int INITIAL_ELEMENT_COUNT
```
    See Also:
    
    Constant Field Values
  - key
```
protected transient long[] key
```
  - value
```
protected transient int[] value
```
  - mask
```
protected transient int mask
```
  - containsNullKey
```
protected transient boolean containsNullKey
```
  - n
```
protected transient int n
```
  - maxFill
```
protected transient int maxFill
```
  - minN
```
protected final transient int minN
```
  - size
```
protected int size
```
  - defRetValue
```
protected int defRetValue
```
- Constructor Detail
  - Long2IntOpenHashMap
```
public Long2IntOpenHashMap()
```
- Method Detail
  - setDefaultReturnValue
```
public void setDefaultReturnValue(int rv)
```
  - getDefaultReturnValue
```
public int getDefaultReturnValue()
```
  - addTo
```
public int addTo(long k,
                 int incr)
```
    Add incr to the existing value for key k.
    
    Parameters:
    
    k - key
    
    incr - The increment value to be added to the existing value for key k
    
    Returns:
    
    The updated value for key k
  - get
```
public int get(long k)
```
    Get the value for key k
    
    Parameters:
    
    k - key
    
    Returns:
    
    value for key k
  - remove
```
public int remove(long k)
```
    Remove key k and its corresponding value from the map
    
    Parameters:
    
    k - key
    
    Returns:
    
    The old value for key k before it's removed
  - size
```
public int size()
```
    Return the number of entries in the map
    
    Returns:
    
    the number of entries in the map
  - rehash
```
protected void rehash(int newN)
```
  - mix
```
public static long mix(long x)
```
  - shiftKeys
```
protected final void shiftKeys(int pos)
```

Class Long2IntOpenHashMap

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

FILL_FACTOR

INITIAL_ELEMENT_COUNT

key

value

mask

containsNullKey

n

maxFill

minN

size

defRetValue

Constructor Detail

Long2IntOpenHashMap

Method Detail

setDefaultReturnValue

getDefaultReturnValue

addTo

get

remove

size

rehash

mix

shiftKeys