org.apache.james.mailbox.hbase.mail

Class HBaseUidProvider

java.lang.Object

org.apache.james.mailbox.hbase.mail.HBaseUidProvider

All Implemented Interfaces:

UidProvider<UUID>

public class HBaseUidProvider
extends Object
implements UidProvider<UUID>

Message UidProvider for HBase.

Constructor Summary

Constructors

Constructor and Description
HBaseUidProvider(org.apache.hadoop.conf.Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
long	lastUid(MailboxSession session, Mailbox<UUID> mailbox) Returns the last message uid used in a mailbox.
long	nextUid(MailboxSession session, Mailbox<UUID> mailbox) Returns the next uid.

Methods inherited from class java.lang.Object

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

Constructor Detail

HBaseUidProvider

public HBaseUidProvider(org.apache.hadoop.conf.Configuration conf)

Method Detail

lastUid

public long lastUid(MailboxSession session,
           Mailbox<UUID> mailbox)
             throws MailboxException

Returns the last message uid used in a mailbox.

Specified by:

lastUid in interface UidProvider<UUID>

Parameters:

session - the session

mailbox - the mailbox for which to get the last uid

Returns:

the last uid used

Throws:

MailboxException

nextUid

public long nextUid(MailboxSession session,
           Mailbox<UUID> mailbox)
             throws MailboxException

Returns the next uid. Implemented using HTable.incrementColumnValue(row, family, qualifier, amount).

Specified by:

nextUid in interface UidProvider<UUID>

Parameters:

session - the mailbox session

mailbox - the mailbox for which we are getting the next uid.

Returns:

the next uid to be used.

Throws:

MailboxException