public class BloomMapFile extends Object
MapFile
and provides very much the same
functionality. However, it uses dynamic Bloom filters to provide
quick membership test for keys, and it offers a fast version of
BloomMapFile.Reader.get(WritableComparable, Writable)
operation, especially in
case of sparsely populated MapFile-s.限定符和类型 | 类和说明 |
---|---|
static class |
BloomMapFile.Reader |
static class |
BloomMapFile.Writer |
限定符和类型 | 字段和说明 |
---|---|
static String |
BLOOM_FILE_NAME |
static int |
HASH_COUNT |
构造器和说明 |
---|
BloomMapFile() |
public static final int HASH_COUNT
public static void delete(FileSystem fs, String name) throws IOException
IOException
Copyright © 2009 The Apache Software Foundation