struqt.util

Class UniqueIdCodec

java.lang.Object

struqt.util.UniqueIdCodec

public final class UniqueIdCodec
extends Object

Unique ID encode and decode rules implementation class.

Since:

1.0

Author:

wangkang

Constructor Summary

Constructors

Constructor and Description
UniqueIdCodec(long timestampBits, long instanceBits) Constructor of class UniqueId.UniqueIdCodec.

Method Summary

Modifier and Type	Method and Description
UniqueId	decode(long id) Decode the value of UniqueID to UniqueID object.
long	encode(long timestamp, long instance, long sequence) Encode three component to the value of UniqueID.
long	getInstance(long id)
long	getInstanceMax()
long	getSequence(long id)
long	getSequenceMax()
long	getTimestamp(long id)
long	getTimestampMax()

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueIdCodec

public UniqueIdCodec(long timestampBits,
                     long instanceBits)

Constructor of class UniqueId.UniqueIdCodec.

Parameters:

timestampBits - bit count

instanceBits - bit count of instance id

Method Detail

encode

public long encode(long timestamp,
                   long instance,
                   long sequence)

Encode three component to the value of UniqueID.

Parameters:

timestamp - timestamp component

instance - instance component

sequence - sequence component

Returns:

the value of UniqueID

decode

public UniqueId decode(long id)

Decode the value of UniqueID to UniqueID object.

Parameters:

id - encoded unique id value

Returns:

UniqueId object

getTimestamp

public long getTimestamp(long id)

getInstance

public long getInstance(long id)

getSequence

public long getSequence(long id)

getTimestampMax

public long getTimestampMax()

getInstanceMax

public long getInstanceMax()

getSequenceMax

public long getSequenceMax()