org.apache.hadoop.hbase.io.hfile

Class HFile.FileInfo

java.lang.Object

org.apache.hadoop.hbase.io.hfile.HFile.FileInfo

All Implemented Interfaces:

Map<byte[],byte[]>, SortedMap<byte[],byte[]>

Enclosing class:

HFile

public static class HFile.FileInfo
extends Object
implements SortedMap<byte[],byte[]>

Metadata for this file. Conjured by the writer. Read in by the reader.

Nested Class Summary

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Field Summary

Fields

Modifier and Type	Field and Description
static byte[]	MAX_TAGS_LEN

Constructor Summary

Constructors

Constructor and Description
FileInfo()

Method Summary

Modifier and Type	Method and Description
HFile.FileInfo	append(byte[] k, byte[] v, boolean checkPrefix) Append the given key/value pair to the file info, optionally checking the key prefix.
void	clear()
Comparator<? super byte[]>	comparator()
boolean	containsKey(Object key)
boolean	containsValue(Object value)
Set<Map.Entry<byte[],byte[]>>	entrySet()
boolean	equals(Object o)
byte[]	firstKey()
byte[]	get(Object key)
int	hashCode()
SortedMap<byte[],byte[]>	headMap(byte[] toKey)
boolean	isEmpty()
Set<byte[]>	keySet()
byte[]	lastKey()
byte[]	put(byte[] key, byte[] value)
void	putAll(Map<? extends byte[],? extends byte[]> m)
byte[]	remove(Object key)
int	size()
SortedMap<byte[],byte[]>	subMap(byte[] fromKey, byte[] toKey)
SortedMap<byte[],byte[]>	tailMap(byte[] fromKey)
Collection<byte[]>	values()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Field Detail

MAX_TAGS_LEN

public static final byte[] MAX_TAGS_LEN

Constructor Detail

FileInfo

public FileInfo()

Method Detail

append

public HFile.FileInfo append(byte[] k,
                             byte[] v,
                             boolean checkPrefix)
                      throws IOException

Append the given key/value pair to the file info, optionally checking the key prefix.

Parameters:

k - key to add

v - value to add

checkPrefix - whether to check that the provided key does not start with the reserved prefix

Returns:

this file info object

Throws:

IOException - if the key or value is invalid

clear

public void clear()

Specified by:

clear in interface Map<byte[],byte[]>

comparator

public Comparator<? super byte[]> comparator()

Specified by:

comparator in interface SortedMap<byte[],byte[]>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<byte[],byte[]>

containsValue

public boolean containsValue(Object value)

Specified by:

containsValue in interface Map<byte[],byte[]>

entrySet

public Set<Map.Entry<byte[],byte[]>> entrySet()

Specified by:

entrySet in interface Map<byte[],byte[]>

Specified by:

entrySet in interface SortedMap<byte[],byte[]>

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<byte[],byte[]>

Overrides:

equals in class Object

firstKey

public byte[] firstKey()

Specified by:

firstKey in interface SortedMap<byte[],byte[]>

get

public byte[] get(Object key)

Specified by:

get in interface Map<byte[],byte[]>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<byte[],byte[]>

Overrides:

hashCode in class Object

headMap

public SortedMap<byte[],byte[]> headMap(byte[] toKey)

Specified by:

headMap in interface SortedMap<byte[],byte[]>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface Map<byte[],byte[]>

keySet

public Set<byte[]> keySet()

Specified by:

keySet in interface Map<byte[],byte[]>

Specified by:

keySet in interface SortedMap<byte[],byte[]>

lastKey

public byte[] lastKey()

Specified by:

lastKey in interface SortedMap<byte[],byte[]>

put

public byte[] put(byte[] key,
                  byte[] value)

Specified by:

put in interface Map<byte[],byte[]>

putAll

public void putAll(Map<? extends byte[],? extends byte[]> m)

Specified by:

putAll in interface Map<byte[],byte[]>

remove

public byte[] remove(Object key)

Specified by:

remove in interface Map<byte[],byte[]>

size

public int size()

Specified by:

size in interface Map<byte[],byte[]>

subMap

public SortedMap<byte[],byte[]> subMap(byte[] fromKey,
                                       byte[] toKey)

Specified by:

subMap in interface SortedMap<byte[],byte[]>

tailMap

public SortedMap<byte[],byte[]> tailMap(byte[] fromKey)

Specified by:

tailMap in interface SortedMap<byte[],byte[]>

values

public Collection<byte[]> values()

Specified by:

values in interface Map<byte[],byte[]>

Specified by:

values in interface SortedMap<byte[],byte[]>