tech.iooo.boot.netty.uuid

Class ObjectId

java.lang.Object

tech.iooo.boot.netty.uuid.ObjectId

All Implemented Interfaces:

Serializable

public final class ObjectId
extends Object
implements Serializable

A globally unique identifier for objects.

Consists of 12 bytes, divided as follows:

ObjectID layout

0	1	2	3	4	5	6	7	8	9	10	11
time				machine			pid		inc

Instances of this class are immutable.

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static long	OFFSET_SECONDS
int	timestamp
long	union

Constructor Summary

Constructors

Constructor and Description
ObjectId(io.netty.buffer.ByteBuf buffer)
ObjectId(int timestamp, long union)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
int	getTimestamp()
long	getUnion()
int	hashCode()
static void	main(String[] args)
static ObjectId	next() Gets a new object id.
String	toHexString() 96位编码, 长度为24
String	toHexString32() 128位编码, 长度为32, 前8个字符用'0'填充
String	toString()
void	writeTo(io.netty.buffer.ByteBuf buffer)

Methods inherited from class java.lang.Object

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

Field Detail

OFFSET_SECONDS

public static final long OFFSET_SECONDS

timestamp

public final int timestamp

union

public final long union

Constructor Detail

ObjectId

public ObjectId(int timestamp,
                long union)

ObjectId

public ObjectId(io.netty.buffer.ByteBuf buffer)

Method Detail

next

public static ObjectId next()

Gets a new object id.

Returns:

the new id

main

public static void main(String[] args)

getTimestamp

public int getTimestamp()

getUnion

public long getUnion()

writeTo

public void writeTo(io.netty.buffer.ByteBuf buffer)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toHexString

public String toHexString()

96位编码, 长度为24

toHexString32

public String toHexString32()

128位编码, 长度为32, 前8个字符用'0'填充

toString

public String toString()

Overrides:

toString in class Object