org.apache.river.outrigger

Class OperationJournal.JournalNode

java.lang.Object

org.apache.river.outrigger.OperationJournal.JournalNode

Enclosing class:

OperationJournal

private class OperationJournal.JournalNode
extends Object

The nodes of our Journal

Field Summary

Fields

Modifier and Type	Field and Description
private OperationJournal.JournalNode	next The next node in the journal
private long	ordinal The sequence number of this journal entry
private Object	payload The contents of this journal entry

Constructor Summary

Constructors

Modifier	Constructor and Description
private	JournalNode(Object payload) Create a new JournalNode with the specified value for the payload, null for next, and the appropriate value for ordinal.

Method Summary

Modifier and Type	Method and Description
private OperationJournal.JournalNode	getNext() Get the next element in the journal.
private void	setNext(OperationJournal.JournalNode n) Set the next element in the list.

Methods inherited from class java.lang.Object

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

Field Detail

next

private OperationJournal.JournalNode next

The next node in the journal

ordinal

private final long ordinal

The sequence number of this journal entry

payload

private final Object payload

The contents of this journal entry

Constructor Detail

JournalNode

private JournalNode(Object payload)

Create a new JournalNode with the specified value for the payload, null for next, and the appropriate value for ordinal.

Assumes the lock on the OperationJournal is held,

Parameters:

payload - The value for the payload field.

Method Detail

setNext

private void setNext(OperationJournal.JournalNode n)

Set the next element in the list.

Parameters:

n - the new value for the next field.

Throws:

IllegalStateException - if the next field has already been set.

NullPointerException - if n is null.

getNext

private OperationJournal.JournalNode getNext()

Get the next element in the journal.

Returns:

the next element in the list, or null if there is currently no next element.