org.apache.cassandra.utils

Class BloomFilter

java.lang.Object

org.apache.cassandra.utils.BloomFilter

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable, IFilter

Direct Known Subclasses:

Murmur2BloomFilter, Murmur3BloomFilter

public abstract class BloomFilter
extends java.lang.Object
implements IFilter

Field Summary

Fields

Modifier and Type	Field and Description
IBitSet	bitset
int	hashCount

Method Summary

Methods

Modifier and Type	Method and Description
void	add(java.nio.ByteBuffer key)
void	clear()
void	close()
protected abstract long[]	hash(java.nio.ByteBuffer b, int position, int remaining, long seed)
boolean	isPresent(java.nio.ByteBuffer key)

Methods inherited from class java.lang.Object

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

Field Detail

bitset

public final IBitSet bitset

hashCount

public final int hashCount

Method Detail

hash

protected abstract long[] hash(java.nio.ByteBuffer b,
          int position,
          int remaining,
          long seed)

add

public void add(java.nio.ByteBuffer key)

Specified by:

add in interface IFilter

isPresent

public boolean isPresent(java.nio.ByteBuffer key)

Specified by:

isPresent in interface IFilter

clear

public void clear()

Specified by:

clear in interface IFilter

close

public void close()
           throws java.io.IOException

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Throws:

java.io.IOException