SimpleHashFunction (Red Hat JBoss Enterprise Application Platform 8.0.0.GA public API)

java.lang.Object
- org.hibernate.search.util.common.data.impl.SimpleHashFunction

All Implemented Interfaces:

HashFunction
```
public final class SimpleHashFunction
extends Object
implements HashFunction
```
A fast, but cryptographically insecure hash function, based on Java's String.toString().

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  static SimpleHashFunction INSTANCE
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  int hash(CharSequence key)
  Hashes a key, i.e.
  
  String toString()
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Field Detail
  - INSTANCE
```
public static final SimpleHashFunction INSTANCE
```
- Method Detail
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - hash
```
public int hash(CharSequence key)
```
    Hashes a key, i.e. turns it into an integer for use in a HashTable.
    This implementation is the same hash function as Java's String.toString().
    It does not delegate to String.toString() in order to protect against future changes in the JDK (?) or different JDK implementations, so that the resulting hash can safely be used for persistence (e.g. to route data to a file).
    
    Specified by:
    
    hash in interface HashFunction
    
    Parameters:
    
    key - A key to hash.
    
    Returns:
    
    A hash.