Module graph

Package de.grogra.persistence

Class LogStore

java.lang.Object

de.grogra.persistence.LogStore

public final class LogStore
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	LogStore.Entry

Constructor Summary

Constructors

Constructor	Description
LogStore(boolean keepAll)

Method Summary

Modifier and Type	Method	Description
void	add(Transaction.Key key, Transaction.Data data)
void	clear()
Transaction.Data	get(Transaction.Key key)
LogStore.Entry	getFirstEntry()
LogStore.Entry	getLastEntry()
boolean	hasFirst()
boolean	hasLast()
void	hideLast(int count)	This do not really remove the last entry.
void	remove(LogStore.Entry e)	Remove the Entry from the chain and all of its next elements.
void	removeLast(int count)
void	restoreLast(int count)	This restore the last as the nth (count) next element of the current last.

Methods inherited from class java.lang.Object

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

Constructor Details

LogStore

public LogStore(boolean keepAll)

Method Details

add

public void add(Transaction.Key key,
 Transaction.Data data)

removeLast

public void removeLast(int count)

remove

public void remove(LogStore.Entry e)

Remove the Entry from the chain and all of its next elements.

hideLast

public void hideLast(int count)

This do not really remove the last entry. It only point the cursor at the nth (=count) last as last. The "floating" logs (the next after the last), can be used to redo transaction. They are deleted when the last get a new next however.

restoreLast

public void restoreLast(int count)

This restore the last as the nth (count) next element of the current last.

get

public Transaction.Data get(Transaction.Key key)

getFirstEntry

public LogStore.Entry getFirstEntry()

getLastEntry

public LogStore.Entry getLastEntry()

clear

public void clear()

hasFirst

public boolean hasFirst()

hasLast

public boolean hasLast()