Package com.storedobject.common

Class Sequencer

java.lang.Object

java.lang.Number

java.util.concurrent.atomic.AtomicLong

com.storedobject.common.Sequencer

All Implemented Interfaces:

Serializable

public class Sequencer
extends AtomicLong

The Sequencer class extends AtomicLong to provide functionality for generating sequential numbers starting from a specified value. It ensures the sequence resets to 1 if the current value reaches Long.MAX_VALUE.

Author:

Syam

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
Sequencer()	Constructs a new Sequencer instance with the sequence starting at 1.
Sequencer(long startingNumber)	Constructs a new Sequencer instance with the sequence starting at the specified value.

Method Summary

Modifier and Type	Method	Description
long	current()	Retrieves the current value of the sequencer without incrementing it.
long	next()	Generates the next number in the sequence.

Methods inherited from class java.util.concurrent.atomic.AtomicLong

accumulateAndGet, addAndGet, compareAndExchange, compareAndExchangeAcquire, compareAndExchangeRelease, compareAndSet, decrementAndGet, doubleValue, floatValue, get, getAcquire, getAndAccumulate, getAndAdd, getAndDecrement, getAndIncrement, getAndSet, getAndUpdate, getOpaque, getPlain, incrementAndGet, intValue, lazySet, longValue, set, setOpaque, setPlain, setRelease, toString, updateAndGet, weakCompareAndSet, weakCompareAndSetAcquire, weakCompareAndSetPlain, weakCompareAndSetRelease, weakCompareAndSetVolatile

Methods inherited from class java.lang.Number

byteValue, shortValue

Methods inherited from class java.lang.Object

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

Constructor Details

Sequencer

public Sequencer()

Constructs a new Sequencer instance with the sequence starting at 1. This constructor invokes the parameterized constructor with the default starting value of 1.

Sequencer

public Sequencer(long startingNumber)

Constructs a new Sequencer instance with the sequence starting at the specified value.

Parameters:

startingNumber - the initial value from which the sequence will start

Method Details

current

public long current()

Retrieves the current value of the sequencer without incrementing it. The value represents the latest number in the sequence.

Returns:

the current value of the sequence

next

public long next()

Generates the next number in the sequence. If the current value of the sequence has reached Long.MAX_VALUE, the sequence resets to 1 before continuing.

Returns:

the next number in the sequence