rsb.transport

Class SequenceNumber

java.lang.Object

rsb.transport.SequenceNumber

public class SequenceNumber
extends Object

Atomic uint32 counter implementation respecting size of ProtocolBuffer uint32 type.

Author:

swrede, jwienke

Field Summary

Fields

Modifier and Type	Field and Description
static long	MAX_VALUE Represents the highest possible value for a sequence number: uint32 max: 4.294.967.295.

Constructor Summary

Constructors

Constructor and Description
SequenceNumber() Constructor starting with 0 as the sequence number.
SequenceNumber(long value) Constructor starting with the specified number for the internal counter.

Method Summary

Methods

Modifier and Type	Method and Description
long	get() Returns the internal counter value.
long	incrementAndGet() Increment the internal counter and returns the new result in an atomic fashion.

Methods inherited from class java.lang.Object

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

Field Detail

MAX_VALUE

public static final long MAX_VALUE

Represents the highest possible value for a sequence number: uint32 max: 4.294.967.295.

See Also:

Constant Field Values

Constructor Detail

SequenceNumber

public SequenceNumber()

Constructor starting with 0 as the sequence number.

SequenceNumber

public SequenceNumber(long value)

Constructor starting with the specified number for the internal counter.

Parameters:

value - start number within uint32 range

Throws:

IllegalArgumentException - value outside uint32 range

Method Detail

incrementAndGet

public long incrementAndGet()

Increment the internal counter and returns the new result in an atomic fashion.

Returns:

new counter value

get

public long get()

Returns the internal counter value.

Returns:

value