Package org.microspace.table

Class Isolator<T>

java.lang.Object

org.microspace.table.SimpleUnsafeTable<T>

org.microspace.table.Isolator<T>

All Implemented Interfaces:

Table<T>

public class Isolator<T>
extends SimpleUnsafeTable<T>

A front map that can be used as a transaction map.

Author:

Gaspar Sinai - gaspar.sinai@microspace.org

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Isolator.State

Field Summary

Fields

Modifier and Type	Field	Description
protected IndexedMap<Object,BigInteger>	backUpdateCount
protected IndexedSet<Object>	updates

Fields inherited from class org.microspace.table.SimpleUnsafeTable

currentTimeProvider, entries, indexedColumns, updateCounter

Constructor Summary

Constructors

Constructor	Description
Isolator(Class<T> clazz, CurrentTimeProvider currentTimeProvider)
Isolator(Accessor<T> accessor, CurrentTimeProvider currentTimeProvider)

Method Summary

Modifier and Type	Method	Description
void	clear()
BigInteger	getBackUpdateCount(Object o)
Isolator.State	getState()
IndexedSet<Object>	getUpdatedKeys()
IndexedSet<Object>	keySet()
protected void	remove(Entry<T> container)	Removes are marke only.
void	setEntry(Entry<T> container)	The updateCounter at the end of the operation will show our update count.
void	setFirstEntry(Entry<T> container)	Set the first entry without update count modification.
void	setState(Isolator.State state)

Methods inherited from class org.microspace.table.SimpleUnsafeTable

autoTimestamp, getAccessor, getCurrentTimeProvider, move, read, readById, readMultiple, remove, size, take, takeMultiple, write

Methods inherited from class java.lang.Object

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

Field Detail

backUpdateCount

protected final IndexedMap<Object,BigInteger> backUpdateCount

updates

protected final IndexedSet<Object> updates

Constructor Detail

Isolator

public Isolator(Class<T> clazz,
                CurrentTimeProvider currentTimeProvider)

Isolator

public Isolator(Accessor<T> accessor,
                CurrentTimeProvider currentTimeProvider)

Method Detail

keySet

public IndexedSet<Object> keySet()

Overrides:

keySet in class SimpleUnsafeTable<T>

setFirstEntry

public void setFirstEntry(Entry<T> container)

Description copied from class: SimpleUnsafeTable

Set the first entry without update count modification.

Overrides:

setFirstEntry in class SimpleUnsafeTable<T>

Parameters:

container - will be moved or removed

getBackUpdateCount

public BigInteger getBackUpdateCount(Object o)

getUpdatedKeys

public IndexedSet<Object> getUpdatedKeys()

getState

public Isolator.State getState()

setState

public void setState(Isolator.State state)

remove

protected void remove(Entry<T> container)

Removes are marke only.

Overrides:

remove in class SimpleUnsafeTable<T>

Parameters:

container - is the container.

setEntry

public void setEntry(Entry<T> container)

Description copied from class: SimpleUnsafeTable

The updateCounter at the end of the operation will show our update count. Container will be owned by this object.

Overrides:

setEntry in class SimpleUnsafeTable<T>

Parameters:

container - will be moved or removed

clear

public void clear()

Overrides:

clear in class SimpleUnsafeTable<T>