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
HFile.FileInfo()

Method Summary

Methods

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

Field Detail

MAX_TAGS_LEN

public static final byte[] MAX_TAGS_LEN

Constructor Detail

HFile.FileInfo

public HFile.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[]>