org.eclnt.util.valuemgmt

Class UniqueIdCreator

java.lang.Object

org.eclnt.util.valuemgmt.UniqueIdCreator

public class UniqueIdCreator
extends java.lang.Object

Utility class for creating unique ids.

Constructor Summary

Constructors

Constructor and Description
UniqueIdCreator()

Method Summary

Modifier and Type	Method and Description
static long	createCounter() Increases the process counter that is used in createId().
static java.lang.String	createId() Creates a unique id based on a prefix which is built one time per process.
static java.lang.String	createRandomId() Creates a unique id based on current time stamp, random number and process counter.
static java.lang.String	createUUID() Creates a UUID according to UUID management of Java 1.7.

Methods inherited from class java.lang.Object

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

Constructor Detail

UniqueIdCreator

public UniqueIdCreator()

Method Detail

createId

public static java.lang.String createId()

Creates a unique id based on a prefix which is built one time per process. The prefix consists out of the current timestamp and a random value. Values are then created by adding a counter. This id is a counted if and must NOT be used for any purpose demanding some unique id that is not predictable!

createRandomId

public static java.lang.String createRandomId()

Creates a unique id based on current time stamp, random number and process counter.

createCounter

public static long createCounter()

Increases the process counter that is used in createId().

createUUID

public static java.lang.String createUUID()

Creates a UUID according to UUID management of Java 1.7. The result is a 36 char long UUID following the common UUID format for 128bit based UUIDs.

If Java 1.7 is not available then the method createRandomId() is used for creating the id.