com.hazelcast.map.impl.mapstore.writebehind
Interface WriteBehindQueue<E>

Type Parameters:

E - Type of entry to be stored.

public interface WriteBehindQueue<E>

Main contract for write behind queues which are used for map store operations.

Method Summary

void	addEnd(Collection<E> collection) Add this collection to the end of the queue.
void	addFront(Collection<E> collection) Add this collection to the front of the queue.
List<E>	asList() Returns list representation of this queue.
void	clear()
List<E>	filterItems(long now) Returns list of entries smaller than specific time.
E	get(E e) Gets item.
List<DelayedEntry>	get(int count) Returns supplied number of entries from the start.
E	getFirst() Gets first item in queue.
WriteBehindQueue<E>	getSnapShot()
boolean	isEnabled() Empty or a real queue.
boolean	offer(E e) adds to the end.
List<E>	removeAll() Removes and returns all items in this queue.
void	removeAll(Collection<E> collection) Removes all items in collection from queue.
void	removeFirst() removes head of the queue.
int	size()

Method Detail

offer

boolean offer(E e)

adds to the end.

Parameters:

e - item to be offered

Returns:

true if added, false otherwise.

get

E get(E e)

Gets item.

Parameters:

e - item to be offered

Returns:

corresponding item from queue or null.

getFirst

E getFirst()

Gets first item in queue.

Returns:

corresponding item from queue or null.

removeFirst

void removeFirst()

removes head of the queue.

size

int size()

clear

void clear()

getSnapShot

WriteBehindQueue<E> getSnapShot()

Returns:

A copy of queue at that moment. Returned copy has same characteristics with the original.

addFront

void addFront(Collection<E> collection)

Add this collection to the front of the queue.

Parameters:

collection - collection to be added in front of this queue.

addEnd

void addEnd(Collection<E> collection)

Add this collection to the end of the queue.

Parameters:

collection - collection to be added end of this queue.

removeAll

void removeAll(Collection<E> collection)

Removes all items in collection from queue.

Parameters:

collection - collection to be removed.

removeAll

List<E> removeAll()

Removes and returns all items in this queue.

Returns:

removed items in this queue.

isEnabled

boolean isEnabled()

Empty or a real queue.

asList

List<E> asList()

Returns list representation of this queue.

Returns:

list representation of this queue.

filterItems

List<E> filterItems(long now)

Returns list of entries smaller than specific time.

Parameters:

now - now in millis.

Returns:

entries to process according to time.

get

List<DelayedEntry> get(int count)

Returns supplied number of entries from the start.

Parameters:

count - number of entries to return.

Returns:

list of entries