AbstractHashFunction (Sux4J 5.4.0)

java.lang.Object
- it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction<K>
- - it.unimi.dsi.sux4j.mph.AbstractHashFunction<K>

All Implemented Interfaces:

it.unimi.dsi.fastutil.Function<K,java.lang.Long>, it.unimi.dsi.fastutil.objects.Object2LongFunction<K>, it.unimi.dsi.fastutil.Size64, java.io.Serializable, java.util.function.Function<K,java.lang.Long>, java.util.function.ToLongFunction<K>

Direct Known Subclasses:

CHDMinimalPerfectHashFunction, GOVMinimalPerfectHashFunction, GOVMinimalPerfectHashFunction128, HollowTrieDistributorMonotoneMinimalPerfectHashFunction, HollowTrieMonotoneMinimalPerfectHashFunction, LcpMonotoneMinimalPerfectHashFunction, MinimalPerfectHashFunction, PaCoTrieDistributorMonotoneMinimalPerfectHashFunction, TwoStepsGOV3Function, TwoStepsLcpMonotoneMinimalPerfectHashFunction, TwoStepsMWHCFunction, VLLcpMonotoneMinimalPerfectHashFunction, VLPaCoTrieDistributorMonotoneMinimalPerfectHashFunction, ZFastTrieDistributorMonotoneMinimalPerfectHashFunction
```
public abstract class AbstractHashFunction<K>
extends it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction<K>
implements it.unimi.dsi.fastutil.Size64
```
A very minimal abstract hash implementation. It extends AbstractObject2LongFunction, by Size64. Moreover, it provides a deprecated size() method that returns -1 if size64() is -1 or greater than Integer.MAX_VALUE, a size64() returning -1 (that you are invited to override), and a containsKey(Object) implementation that returns true.

See Also:

Serialized Form

Field Summary
- Fields inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction
  defRetValue

Constructor Summary

Constructors
Constructor Description

AbstractHashFunction()

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`boolean`	`containsKey(java.lang.Object key)`
`int`	`size()`	Deprecated.
`long`	`size64()`

Methods inherited from class it.unimi.dsi.fastutil.objects.AbstractObject2LongFunction
defaultReturnValue, defaultReturnValue

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

Methods inherited from interface it.unimi.dsi.fastutil.Function
apply, clear

Methods inherited from interface java.util.function.Function
compose

Methods inherited from interface it.unimi.dsi.fastutil.objects.Object2LongFunction
andThen, andThenByte, andThenChar, andThenDouble, andThenFloat, andThenInt, andThenLong, andThenObject, andThenReference, andThenShort, applyAsLong, composeByte, composeChar, composeDouble, composeFloat, composeInt, composeLong, composeObject, composeReference, composeShort, get, getLong, getOrDefault, getOrDefault, put, put, remove, removeLong

- Constructor Detail
  - AbstractHashFunction
```
public AbstractHashFunction()
```
- Method Detail
  - containsKey
```
public boolean containsKey(java.lang.Object key)
```
    Specified by:
    
    containsKey in interface it.unimi.dsi.fastutil.Function<K,java.lang.Long>
  - size
```
@Deprecated
public int size()
```
    Deprecated.
    
    Specified by:
    
    size in interface it.unimi.dsi.fastutil.Function<K,java.lang.Long>
    
    Specified by:
    
    size in interface it.unimi.dsi.fastutil.Size64
  - size64
```
public long size64()
```
    Specified by:
    
    size64 in interface it.unimi.dsi.fastutil.Size64