org.tikv.common.key

Class Key

java.lang.Object

org.tikv.common.key.Key

All Implemented Interfaces:

Serializable, Comparable<Key>

Direct Known Subclasses:

CompoundKey, IndexKey, RowKey, TypedKey

public class Key
extends Object
implements Comparable<Key>, Serializable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static Key	EMPTY
protected int	infFlag
static Key	MAX
static Key	MIN
static Key	NULL
protected static byte[]	TBL_PREFIX
protected byte[]	value

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Key(byte[] value)

Method Summary

Modifier and Type	Method and Description
Key	append(Key other)
int	compareTo(Key other)
boolean	equals(Object other)
byte[]	getBytes()
int	getInfFlag()
int	hashCode()
Key	next() Next key simply append a zero byte to previous key.
Key	nextPrefix() nextPrefix key will be key with next available rid.
com.google.protobuf.ByteString	toByteString()
static Key	toRawKey(byte[] bytes)
static Key	toRawKey(byte[] bytes, boolean negative)
static Key	toRawKey(com.google.protobuf.ByteString bytes)
static Key	toRawKey(com.google.protobuf.ByteString bytes, boolean negative)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY

public static final Key EMPTY

NULL

public static final Key NULL

MIN

public static final Key MIN

MAX

public static final Key MAX

TBL_PREFIX

protected static final byte[] TBL_PREFIX

value

protected final byte[] value

infFlag

protected final int infFlag

Constructor Detail

Key

protected Key(byte[] value)

Method Detail

toRawKey

public static Key toRawKey(com.google.protobuf.ByteString bytes,
                           boolean negative)

toRawKey

public static Key toRawKey(com.google.protobuf.ByteString bytes)

toRawKey

public static Key toRawKey(byte[] bytes,
                           boolean negative)

toRawKey

public static Key toRawKey(byte[] bytes)

next

public Key next()

Next key simply append a zero byte to previous key.

Returns:

next key with a zero byte appended

nextPrefix

public Key nextPrefix()

nextPrefix key will be key with next available rid. For example, if the current key is prefix_rid, after calling this method, the return value should be prefix_rid+1

Returns:

a new key current rid+1.

compareTo

public int compareTo(@Nonnull
                     Key other)

Specified by:

compareTo in interface Comparable<Key>

equals

public boolean equals(Object other)

Overrides:

equals in class Object

append

public Key append(Key other)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

getBytes

public byte[] getBytes()

toByteString

public com.google.protobuf.ByteString toByteString()

getInfFlag

public int getInfFlag()

toString

public String toString()

Overrides:

toString in class Object