org.apache.directory.mitosis.common
Class SimpleCSN

java.lang.Object
  org.apache.directory.mitosis.common.SimpleCSN

All Implemented Interfaces:

java.io.Serializable, java.lang.Comparable, CSN

public class SimpleCSN
extends java.lang.Object
implements CSN, java.io.Serializable, java.lang.Comparable

Basic implementation of CSN.

See Also:

Serialized Form

Constructor Summary

SimpleCSN(byte[] value)
Creates a new instance of SimpleCSN from the serialized data

SimpleCSN(long timestamp, ReplicaId replicaId, int operationSequence)
Creates a new instance.

SimpleCSN(java.lang.String value)
Creates a new instance of SimpleCSN from a String.

Method Summary

int	compareTo(java.lang.Object o) Compares this object with the specified object for order.
boolean	equals(java.lang.Object o) Indicates whether some other object is "equal to" this one
int	getOperationSequence() Returns sequence number of modification.
ReplicaId	getReplicaId() Returns replica ID.
long	getTimestamp() Returns GMT timestamp of modification.
int	hashCode() Returns a hash code value for the object.
byte[]	toBytes() Get the CSN as a byte array.
java.lang.String	toOctetString() Return the CSN as a formated string.
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SimpleCSN

public SimpleCSN(long timestamp,
                 ReplicaId replicaId,
                 int operationSequence)

Creates a new instance.

Parameters:

timestamp - GMT timestamp of modification

replicaId - Replica ID where modification occurred ([-_A-Za-z0-9]{1,16})

operationSequence - Operation sequence

SimpleCSN

public SimpleCSN(java.lang.String value)
          throws InvalidCSNException

Creates a new instance of SimpleCSN from a String. The string format must be : <timestamp> : <replica ID> : <operation sequence>

Parameters:

value - The String containing the CSN

Throws:

InvalidCSNException

SimpleCSN

public SimpleCSN(byte[] value)

Creates a new instance of SimpleCSN from the serialized data

Parameters:

value - The byte array which contains the serialized CSN

Method Detail

toOctetString

public java.lang.String toOctetString()

Return the CSN as a formated string. The used format is : <timestamp> ':' <replicaId> ':' <operation sequence>

Specified by:

toOctetString in interface CSN

Returns:

The CSN as a String

toBytes

public byte[] toBytes()

Get the CSN as a byte array. The data are stored as : bytes 1 to 8 : timestamp, big-endian bytes 9 to 12 : operation sequence, big-endian bytes 13 to ... : ReplicaId

Specified by:

toBytes in interface CSN

Returns:

A byte array representing theCSN

getTimestamp

public long getTimestamp()

Description copied from interface: CSN

Returns GMT timestamp of modification.

Specified by:

getTimestamp in interface CSN

Returns:

The timestamp

getReplicaId

public ReplicaId getReplicaId()

Description copied from interface: CSN

Returns replica ID.

Specified by:

getReplicaId in interface CSN

Returns:

The replicaId

getOperationSequence

public int getOperationSequence()

Description copied from interface: CSN

Returns sequence number of modification.

Specified by:

getOperationSequence in interface CSN

Returns:

The operation sequence

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

Returns:

The CSN as a String

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

Returns:

a hash code value for this object.

equals

public boolean equals(java.lang.Object o)

Indicates whether some other object is "equal to" this one

Overrides:

equals in class java.lang.Object

Parameters:

o - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

compareTo

public int compareTo(java.lang.Object o)

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

Specified by:

compareTo in interface java.lang.Comparable

Parameters:

o - the Object to be compared.

Returns:

a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.