org.apache.river.norm

Class UIDGenerator

java.lang.Object

org.apache.river.norm.UIDGenerator

class UIDGenerator
extends Object

Utility class for generating locally unique IDs.

Author:

Sun Microsystems, Inc.

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.concurrent.atomic.AtomicLong	nextID Value of the next ID

Constructor Summary

Constructors

Constructor and Description
UIDGenerator()

Method Summary

Modifier and Type	Method and Description
(package private) void	inUse(long ID) Used during log recovery to update the generator that a given ID is in use.
(package private) long	newID() Generate ID, the returned ID is unique.

Methods inherited from class java.lang.Object

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

Field Detail

nextID

private final java.util.concurrent.atomic.AtomicLong nextID

Value of the next ID

Constructor Detail

UIDGenerator

UIDGenerator()

Method Detail

newID

long newID()

Generate ID, the returned ID is unique.

inUse

void inUse(long ID)

Used during log recovery to update the generator that a given ID is in use. This method performs no locking.

Parameters:

ID - ID that is in use