org.apache.pig.impl.bloom

Class BloomFilter

java.lang.Object

org.apache.hadoop.util.bloom.Filter

org.apache.pig.impl.bloom.BloomFilter

All Implemented Interfaces:

org.apache.hadoop.io.Writable

public class BloomFilter
extends org.apache.hadoop.util.bloom.Filter

Field Summary

Fields inherited from class org.apache.hadoop.util.bloom.Filter

hashType, nbHash, vectorSize

Constructor Summary

Constructors

Constructor and Description
BloomFilter() Read the fields using bloomIn
BloomFilter(int vectorSize, int nbHash, int hashAlgorithm)

Method Summary

Modifier and Type	Method and Description
void	add(org.apache.hadoop.util.bloom.Key key)
void	and(org.apache.hadoop.util.bloom.Filter filter)
static BloomFilter	bloomIn(DataByteArray b)
int	getVectorSize()
boolean	membershipTest(org.apache.hadoop.util.bloom.Key key)
void	not()
void	or(org.apache.hadoop.util.bloom.Filter filter)
void	readFields(java.io.DataInput in)
java.lang.String	toString()
void	write(java.io.DataOutput out)
void	xor(org.apache.hadoop.util.bloom.Filter filter)

Methods inherited from class org.apache.hadoop.util.bloom.Filter

add, add, add

Methods inherited from class java.lang.Object

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

Constructor Detail

BloomFilter

public BloomFilter()

Read the fields using bloomIn

BloomFilter

public BloomFilter(int vectorSize,
                   int nbHash,
                   int hashAlgorithm)

Method Detail

add

public void add(org.apache.hadoop.util.bloom.Key key)

Specified by:

add in class org.apache.hadoop.util.bloom.Filter

membershipTest

public boolean membershipTest(org.apache.hadoop.util.bloom.Key key)

Specified by:

membershipTest in class org.apache.hadoop.util.bloom.Filter

and

public void and(org.apache.hadoop.util.bloom.Filter filter)

Specified by:

and in class org.apache.hadoop.util.bloom.Filter

or

public void or(org.apache.hadoop.util.bloom.Filter filter)

Specified by:

or in class org.apache.hadoop.util.bloom.Filter

xor

public void xor(org.apache.hadoop.util.bloom.Filter filter)

Specified by:

xor in class org.apache.hadoop.util.bloom.Filter

not

public void not()

Specified by:

not in class org.apache.hadoop.util.bloom.Filter

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getVectorSize

public int getVectorSize()

Returns:

size of the the bloomfilter

write

public void write(java.io.DataOutput out)
           throws java.io.IOException

Specified by:

write in interface org.apache.hadoop.io.Writable

Overrides:

write in class org.apache.hadoop.util.bloom.Filter

Throws:

java.io.IOException

readFields

public void readFields(java.io.DataInput in)
                throws java.io.IOException

Specified by:

readFields in interface org.apache.hadoop.io.Writable

Overrides:

readFields in class org.apache.hadoop.util.bloom.Filter

Throws:

java.io.IOException

bloomIn

public static BloomFilter bloomIn(DataByteArray b)
                           throws java.io.IOException

Throws:

java.io.IOException