pack-priv Class UniqueValue

Class Inheritance

extends Object

java.lang.Object
javax.mail.internet.UniqueValue

Imports

java.net.*, java.util.concurrent.atomic.AtomicInteger, javax.mail.Session

This is a utility class that generates unique values. The generated String contains only US-ASCII characters and hence is safe for use in RFC822 headers.

This is a package private class.

Authors: John Mani, Max Spivak, Bill Shannon

Field Summary

Modifier and Type	Field and Description
private static AtomicInteger	id A global unique number, to ensure uniqueness of generated strings.

Constructor Summary

Access	Constructor and Description
pack-priv	UniqueValue()

Method Summary

Modifier and Type	Method and Description
public static String	getUniqueBoundaryValue() Get a unique value for use in a multipart boundary string.
public static String	getUniqueMessageIDValue(Session Session object used to get the local address ssn) Get a unique value for use in a Message-ID. This implementation generates it by concatenating a newly created object's `hashCode()`, a global ID (incremented on every use), the current time (in milliseconds), and the host name from this user's local address generated by `InternetAddress.getLocalAddress()`.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

id	back to summary
private static AtomicInteger id A global unique number, to ensure uniqueness of generated strings.

Constructor Detail

UniqueValue	back to summary
pack-priv UniqueValue()

Method Detail

getUniqueBoundaryValue	back to summary
public static String getUniqueBoundaryValue() Get a unique value for use in a multipart boundary string. This implementation generates it by concatenating a global part number, a newly created object's `hashCode()`, and the current time (in milliseconds).

getUniqueMessageIDValue back to summary

getUniqueMessageIDValue	back to summary
public static String getUniqueMessageIDValue(Session ssn) Get a unique value for use in a Message-ID. This implementation generates it by concatenating a newly created object's `hashCode()`, a global ID (incremented on every use), the current time (in milliseconds), and the host name from this user's local address generated by `InternetAddress.getLocalAddress()`. (The host name defaults to "localhost" if `getLocalAddress()` returns null.) Parameters ssn:Session Session object used to get the local address See Also `javax.mail.internet.InternetAddress`

public static String getUniqueMessageIDValue(Session ssn)

Get a unique value for use in a Message-ID. This implementation generates it by concatenating a newly created object's hashCode(), a global ID (incremented on every use), the current time (in milliseconds), and the host name from this user's local address generated by InternetAddress.getLocalAddress(). (The host name defaults to "localhost" if getLocalAddress() returns null.)

Parameters

ssn:Session: Session object used to get the local address

See Also

javax.mail.internet.InternetAddress