org.eaglei.repository.rid
Class RIDGenerator

java.lang.Object
  org.eaglei.repository.rid.RIDGenerator

public final class RIDGenerator
extends java.lang.Object

Field Summary

boolean

flag

Constructor Summary

protected

RIDGenerator(TimeProvider testTP) Constructor for RIDGenerator.

Method Summary

RIDSequence	getIDSequence(int amount) getIDSequence
static RIDGenerator	getInstance() getInstance
boolean	isUUID() Generates a new time field.
java.util.UUID	newID() newID
java.util.UUID[]	newIDs(int amount) newIDs

Methods inherited from class java.lang.Object

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

Field Detail

flag

public boolean flag

Constructor Detail

RIDGenerator

protected RIDGenerator(TimeProvider testTP)

Constructor for RIDGenerator.

Parameters:

testTP - a TimeProvider object.

Method Detail

getInstance

public static RIDGenerator getInstance()

getInstance

Returns:

a RIDGenerator object.

isUUID

public boolean isUUID()

Generates a new time field. Each time field is unique and larger than the previously generated time field.

Returns:

a new time value public static synchronized long newTime() { long timeNano=0l; long timeMilli=System.currentTimeMillis(); if (timeMilli > previousTime) { previousTime = timeNano; } else { if(timeMilli == previousTime) timeNano = ++previousTime; } // UTC time. //Convert to nanoseconds and add 122192928000000000 timeNano = (timeMilli * 10000) + 0x01B21DD213814000L; time |= (timeNano & 0xFFFF00000000L) >> 16; // time hi and version time |= 0x1000 | ((timeNano >> 48) & 0x0FFF); // version 1 return time; }

newID

public java.util.UUID newID()

newID

Returns:

a UUID object.

newIDs

public java.util.UUID[] newIDs(int amount)

newIDs

Parameters:

amount - a int.

Returns:

an array of UUID objects.

getIDSequence

public RIDSequence getIDSequence(int amount)

getIDSequence

Parameters:

amount - a int.

Returns:

a RIDSequence object.