org.jppf.utils
Class JPPFUuid

java.lang.Object
  org.jppf.utils.JPPFUuid

All Implemented Interfaces:

Serializable

public class JPPFUuid
extends Object
implements Serializable

Instances of this class serve as unique identifiers for messages sent to and from remote execution services. The identifier is generated as a string with the following elements:

• sender host IP address
• current system time in milliseconds
• a random integer value between 0 and Integer.MAX_VALUE

Author:

Laurent Cohen

See Also:

Serialized Form

Field Summary

static String[]	ALPHA_NUM Set of characters used to compose a uuid, including only alphanumeric characters.
static String[]	ALPHABET_SUPERSET Set of characters used to compose a uuid, including more than alphanumeric characters.
static String[]	DECIMAL Set of characters used to compose a uuid, including only decimal digits.
static String[]	HEXADECIMAL Set of characters used to compose a uuid, including only hexadecimal digits.

Constructor Summary

JPPFUuid()
Instanciate this JPPFUuid with a generated unique identifier.

JPPFUuid(String[] codes, int length)
Instanciate this JPPFUuid with a generated unique identifier.

Method Summary

String

toString() Get a string representation of the generated unique identifier.

Methods inherited from class java.lang.Object

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

Field Detail

ALPHABET_SUPERSET

public static final String[] ALPHABET_SUPERSET

Set of characters used to compose a uuid, including more than alphanumeric characters.

ALPHA_NUM

public static final String[] ALPHA_NUM

Set of characters used to compose a uuid, including only alphanumeric characters.

HEXADECIMAL

public static final String[] HEXADECIMAL

Set of characters used to compose a uuid, including only hexadecimal digits.

DECIMAL

public static final String[] DECIMAL

Set of characters used to compose a uuid, including only decimal digits.

Constructor Detail

JPPFUuid

public JPPFUuid()

Instanciate this JPPFUuid with a generated unique identifier.

JPPFUuid

public JPPFUuid(String[] codes,
                int length)

Instanciate this JPPFUuid with a generated unique identifier.

Parameters:

codes - the set of codes from which to choose randomly to build the uuid.

length - number of codes to use to build the uuid.

Method Detail

toString

public String toString()

Get a string representation of the generated unique identifier.

Overrides:

toString in class Object

Returns:

a string containing the uuid.

See Also:

Object.toString()