org.apache.flink.graph.utils

Class MurmurHash

java.lang.Object

org.apache.flink.graph.utils.MurmurHash

All Implemented Interfaces:

Serializable

public class MurmurHash
extends Object
implements Serializable

A resettable implementation of the 32-bit MurmurHash algorithm.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
MurmurHash(int seed) A resettable implementation of the 32-bit MurmurHash algorithm.

Method Summary

Modifier and Type	Method and Description
int	hash() Finalize and return the MurmurHash output.
MurmurHash	hash(double input) Process a double value.
MurmurHash	hash(float input) Process a float value.
MurmurHash	hash(int input) Process an integer value.
MurmurHash	hash(long input) Process a long value.
MurmurHash	reset() Re-initialize the MurmurHash state.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

MurmurHash

public MurmurHash(int seed)

A resettable implementation of the 32-bit MurmurHash algorithm.

Parameters:

seed - MurmurHash seed

Method Detail

reset

public MurmurHash reset()

Re-initialize the MurmurHash state.

Returns:

this

hash

public MurmurHash hash(double input)

Process a double value.

Parameters:

input - 64-bit input value

Returns:

this

hash

public MurmurHash hash(float input)

Process a float value.

Parameters:

input - 32-bit input value

Returns:

this

hash

public MurmurHash hash(int input)

Process an integer value.

Parameters:

input - 32-bit input value

Returns:

this

hash

public MurmurHash hash(long input)

Process a long value.

Parameters:

input - 64-bit input value

Returns:

this

hash

public int hash()

Finalize and return the MurmurHash output.

Returns:

32-bit hash