org.apache.james.mailbox.store.mail

Class AbstractLockingModSeqProvider<Id>

java.lang.Object

org.apache.james.mailbox.store.mail.AbstractLockingModSeqProvider<Id>

Type Parameters:

Id -

All Implemented Interfaces:

ModSeqProvider<Id>

Direct Known Subclasses:

JCRModSeqProvider, JPAModSeqProvider

public abstract class AbstractLockingModSeqProvider<Id>
extends Object
implements ModSeqProvider<Id>

Abstract base implementation of ModSeqProvider which uses the given MailboxPathLocker to lock the Mailbox during the mod-seq generation.

Constructor Summary

Constructors

Constructor and Description
AbstractLockingModSeqProvider(MailboxPathLocker locker)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract long	lockedNextModSeq(MailboxSession session, Mailbox<Id> mailbox) Generate the next mod-seq for the given Mailbox while holding a lock on it.
long	nextModSeq(MailboxSession session, Mailbox<Id> mailbox) Return the next mod-sequence which can be used for the Mailbox.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.james.mailbox.store.mail.ModSeqProvider

highestModSeq

Constructor Detail

AbstractLockingModSeqProvider

public AbstractLockingModSeqProvider(MailboxPathLocker locker)

Method Detail

nextModSeq

public long nextModSeq(MailboxSession session,
              Mailbox<Id> mailbox)
                throws MailboxException

Description copied from interface: ModSeqProvider

Return the next mod-sequence which can be used for the Mailbox. Its important that the returned mod-sequence is higher then the last used and that the next call of this method does return a higher one. The first mod-seq must be >= 1

Specified by:

nextModSeq in interface ModSeqProvider<Id>

Returns:

modSeq

Throws:

MailboxException

lockedNextModSeq

protected abstract long lockedNextModSeq(MailboxSession session,
                    Mailbox<Id> mailbox)
                                  throws MailboxException

Generate the next mod-seq for the given Mailbox while holding a lock on it.

Parameters:

session -

mailbox -

Returns:

nextModSeq

Throws:

MailboxException