org.apache.paimon.fileindex.bloomfilter

类 BloomFilterFileIndex

java.lang.Object

org.apache.paimon.fileindex.bloomfilter.BloomFilterFileIndex

所有已实现的接口:

FileIndexer

public class BloomFilterFileIndex
extends Object
implements FileIndexer

Bloom filter for file index.

Note: This class use BloomFilter64 as a base filter. Store the num hash function (one integer) and bit set bytes only. Use HashFunction to hash the objects, which hash bytes type(like varchar, binary, etc.) using xx hash, hash numeric type by specified number hash(see http://web.archive.org/web/20071223173210/http://www.concentric.net/~Ttwang/tech/inthash.htm).

字段概要

字段

限定符和类型	字段和说明
static String	BLOOM_FILTER

构造器概要

构造器

构造器和说明
BloomFilterFileIndex(DataType dataType, Options options)

方法概要

限定符和类型	方法和说明
FileIndexReader	createReader(byte[] serializedBytes)
FileIndexWriter	createWriter()
String	name()

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.paimon.fileindex.FileIndexer

create

字段详细资料

BLOOM_FILTER

public static final String BLOOM_FILTER

另请参阅:

常量字段值

构造器详细资料

BloomFilterFileIndex

public BloomFilterFileIndex(DataType dataType,
                            Options options)

方法详细资料

name

public String name()

createWriter

public FileIndexWriter createWriter()

指定者:

createWriter 在接口中 FileIndexer

createReader

public FileIndexReader createReader(byte[] serializedBytes)

指定者:

createReader 在接口中 FileIndexer