com.jn.langx.util.id.vm

类 VMID

java.lang.Object

com.jn.langx.util.id.vm.VMID

所有已实现的接口:

Serializable, Cloneable

public class VMID
extends Object
implements Serializable, Cloneable

An object that uniquely identifies a virtual machine.

The identifier is composed of:

1. The Internet address of the physical machine.
2. The process identifier of the virtual machine.
3. A UID to guarantee uniqness across multipule virtual machines on the same physical machine.

    [ address ] - [ process id ] - [ time ] - [ counter ]
                                   |------- UID --------|
 

Numbers are converted to radix(Character.MAX_RADIX) when converting to strings.

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected byte[]	address The address of the current virtual machine
protected int	hashCode The hash code of this VMID
protected String	pid The process identifier of the current virtual machine
protected UID	uid A unique identifier to ensure uniqueness across the host machine
static byte[]	UNKNOWN_HOST The address used when conventional methods fail to return the address of the current machine.

构造器概要

构造器

构造器和说明
VMID(byte[] address, String pid, UID uid) Construct a new VMID.
VMID(VMID vmid) Copy a VMID.

方法概要

限定符和类型	方法和说明
static String	asString() Returns a VMID as a string.
Object	clone() Returns a copy of this VMID.
boolean	equals(Object obj) Check if the given object is equal to this VMID.
byte[]	getAddress() Get the address portion of this VMID.
static VMID	getInstance() Get the VMID for the current virtual machine.
String	getProcessID() Get the process identifier portion of this VMID.
UID	getUID() Get the UID portion of this VMID.
int	hashCode() Return the hash code of this VMID.
String	toString() Return a string representation of this VMID.

从类继承的方法 java.lang.Object

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

字段详细资料

address

protected final byte[] address

The address of the current virtual machine

pid

protected final String pid

The process identifier of the current virtual machine

uid

protected final UID uid

A unique identifier to ensure uniqueness across the host machine

hashCode

protected final int hashCode

The hash code of this VMID

UNKNOWN_HOST

public static final byte[] UNKNOWN_HOST

The address used when conventional methods fail to return the address of the current machine.

构造器详细资料

VMID

public VMID(byte[] address,
            String pid,
            UID uid)

Construct a new VMID.

参数:

address - The address of the current virtual machine.

pid - Process identifier.

uid - Unique identifier.

另请参阅:

For getting a VMID instance reference.

VMID

public VMID(VMID vmid)

Copy a VMID.

参数:

vmid - VMID to copy.

方法详细资料

getAddress

public final byte[] getAddress()

Get the address portion of this VMID.

返回:

The address portion of this VMID.

getProcessID

public final String getProcessID()

Get the process identifier portion of this VMID.

返回:

The process identifier portion of this VMID.

getUID

public final UID getUID()

Get the UID portion of this VMID.

返回:

The UID portion of this VMID.

toString

public String toString()

Return a string representation of this VMID.

覆盖:

toString 在类中 Object

返回:

A string representation of this VMID.

hashCode

public final int hashCode()

Return the hash code of this VMID.

覆盖:

hashCode 在类中 Object

返回:

The hash code of this VMID.

equals

public boolean equals(Object obj)

Check if the given object is equal to this VMID.

A VMID is equals to another VMID if the address, process identifer and UID portions are equal.

覆盖:

equals 在类中 Object

参数:

obj - Object to test equality with.

返回:

True if object is equals to this VMID.

clone

public Object clone()

Returns a copy of this VMID.

覆盖:

clone 在类中 Object

返回:

A copy of this VMID.

asString

public static String asString()

Returns a VMID as a string.

返回:

VMID as a string.

getInstance

public static VMID getInstance()

Get the VMID for the current virtual machine.

返回:

Virtual machine identifier.