Package org.redisson

Class RedissonPriorityBlockingQueue<V>

org.redisson.RedissonObject

org.redisson.RedissonList<V>

org.redisson.RedissonPriorityQueue<V>

org.redisson.RedissonPriorityBlockingQueue<V>

All Implemented Interfaces:

<V>, <V>, <V>, <V>, <V>, , <V>>, <V>>

public class RedissonPriorityBlockingQueue<V>
extends RedissonPriorityQueue<V>
implements RPriorityBlockingQueue<V>

Distributed and concurrent implementation of .

Queue size limited by Redis server memory amount. This is why remainingCapacity() always returns Integer.MAX_VALUE

Author:

Nikita Koksharov

Nested Class Summary

Nested classes/interfaces inherited from class org.redisson.RedissonPriorityQueue

RedissonPriorityQueue.BinarySearchResult<V>

Field Summary

Fields inherited from class org.redisson.RedissonObject

codec, name

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RedissonPriorityBlockingQueue(Codec codec, CommandAsyncExecutor commandExecutor, name, RedissonClient redisson)
protected	RedissonPriorityBlockingQueue(CommandAsyncExecutor commandExecutor, name, RedissonClient redisson)

Method Summary

Modifier and Type	Method	Description
boolean	clearExpire()	Clear an expire timeout or expire date for object.
protected >	... keys)
int	<? super V> c)
int	<? super V> c, int maxElements)
>	<? super V> c)	Removes all available elements from this queue and adds them to the given collection in async mode.
>	<? super V> c, int maxElements)	Removes at most the given number of available elements from this queue and adds them to the given collection in async mode.
boolean	expire(long timeToLive, timeUnit)	Set a timeout for object.
boolean	instant)	Set an expire date for object.
protected >	expireAsync(long timeToLive, timeUnit, ... keys)
>	instant)	Set an expire date for object.
boolean	expireAt(long timestamp)	Use RExpirable.expire(Instant) instead
boolean	timestamp)	Use RExpirable.expire(Instant) instead
>	expireAtAsync(long timestamp)	Use RExpirableAsync.expireAsync(Instant) instead
>	timestamp)	Use RExpirableAsync.expireAsync(Instant) instead
boolean	offer(V e, long timeout, unit)
>	offerAsync(V e)	Inserts the specified element into this queue.
<V>	poll(int limit)	Retrieves and removes the head elements of this queue.
V	poll(long timeout, unit)
<V>>	pollAsync(int limit)	Retrieves and removes the head elements of this queue.
RFuture<V>	pollAsync(long timeout, unit)	Retrieves and removes the head of this queue in async mode, waiting up to the specified wait time if necessary for an element to become available.
V	pollFromAny(long timeout, unit, ... queueNames)	Retrieves and removes first available head element of any queue, waiting up to the specified wait time if necessary for an element to become available in any of defined queues including queue itself.
RFuture<V>	pollFromAnyAsync(long timeout, unit, ... queueNames)	Retrieves and removes first available head element of any queue in async mode, waiting up to the specified wait time if necessary for an element to become available in any of defined queues including queue itself.
V	queueName, long timeout, unit)	Retrieves and removes last available tail element of this queue and adds it at the head of queueName, waiting up to the specified wait time if necessary for an element to become available.
RFuture<V>	queueName, long timeout, unit)	Retrieves and removes last available tail element of this queue and adds it at the head of queueName, waiting up to the specified wait time if necessary for an element to become available.
void	put(V e)
>	putAsync(V e)	Inserts the specified element into this queue in async mode, waiting if necessary for space to become available.
int	remainingCapacity()
long	remainTimeToLive()	Remaining time to live of Redisson object that has a timeout
>	remainTimeToLiveAsync()	Remaining time to live of Redisson object that has a timeout
int	<V> consumer)	Subscribes on elements appeared in this queue.
V	take()
RFuture<V>	takeAsync()	Retrieves and removes the head of this queue in async mode, waiting if necessary until an element becomes available.
protected <T> void	takeAsync(RPromise<V> result, long delay, long timeoutInMicro, RedisCommand<T> command, ... params)
V	queueName)	Retrieves and removes last available tail element of any queue and adds it at the head of queueName, waiting if necessary for an element to become available in any of defined queues including queue itself.
RFuture<V>	queueName)	Retrieves and removes last available tail element of any queue and adds it at the head of queueName, waiting if necessary for an element to become available in any of defined queues including queue itself.
void	unsubscribe(int listenerId)	Un-subscribes defined listener.

Methods inherited from class org.redisson.RedissonPriorityQueue

add, addAll, addAsync, binarySearch, clear, clearExpireAsync, comparator, contains, containsAll, deleteAsync, element, expireAsync, expireAtAsync, getFirst, offer, peek, peekAsync, poll, pollAsync, pollLastAndOfferFirstTo, pollLastAndOfferFirstToAsync, remove, remove, removeAll, removeFirst, retainAll, toString, trySetComparator, wrapLockedAsync, wrapLockedAsync

Methods inherited from class org.redisson.RedissonList

add, addAfter, addAfterAsync, addAll, addAllAsync, addAllAsync, addAsync, addAsync, addBefore, addBeforeAsync, addListener, addListenerAsync, containsAllAsync, containsAsync, equals, fastRemove, fastRemoveAsync, fastSet, fastSetAsync, get, get, getAsync, getAsync, hashCode, indexOf, indexOfAsync, indexOfAsync, isEmpty, iterator, lastIndexOf, lastIndexOfAsync, lastIndexOfAsync, listIterator, listIterator, mapReduce, range, range, rangeAsync, rangeAsync, readAll, readAllAsync, readSort, readSort, readSort, readSort, readSort, readSort, readSortAlpha, readSortAlpha, readSortAlpha, readSortAlpha, readSortAlpha, readSortAlpha, readSortAlphaAsync, readSortAlphaAsync, readSortAlphaAsync, readSortAlphaAsync, readSortAlphaAsync, readSortAlphaAsync, readSortAsync, readSortAsync, readSortAsync, readSortAsync, readSortAsync, readSortAsync, remove, remove, removeAllAsync, removeAsync, removeAsync, removeAsync, removeIf, removeListener, removeListenerAsync, retainAllAsync, set, setAsync, size, sizeAsync, sortTo, sortTo, sortTo, sortTo, sortTo, sortTo, sortToAsync, sortToAsync, sortToAsync, sortToAsync, sortToAsync, sortToAsync, subList, toArray, toArray, trim, trimAsync

Methods inherited from class org.redisson.RedissonObject

addListener, addListenerAsync, copy, copyAsync, delete, deleteAsync, dump, dumpAsync, encode, encode, encode, encode, encodeMapKey, encodeMapKeys, encodeMapValue, encodeMapValues, get, getCodec, getIdleTime, getIdleTimeAsync, getLockByMapKey, getLockByValue, getName, getRawName, getRawName, isExists, isExistsAsync, migrate, migrateAsync, move, moveAsync, prefixName, removeListenersAsync, rename, renameAsync, renamenx, renamenxAsync, restore, restore, restoreAndReplace, restoreAndReplace, restoreAndReplaceAsync, restoreAndReplaceAsync, restoreAsync, restoreAsync, setName, sizeInMemory, sizeInMemoryAsync, sizeInMemoryAsync, sizeInMemoryAsync, suffixName, toSeconds, toStream, touch, touchAsync, unlink, unlinkAsync

Methods inherited from class java.lang.

, , , , , , ,

Methods inherited from interface java.util.concurrent.

, , ,

Methods inherited from interface java.util.

, , ,

Methods inherited from interface java.lang.

Methods inherited from interface java.util.

, ,

Methods inherited from interface java.util.

, , ,

Methods inherited from interface org.redisson.api.RCollectionAsync

addAllAsync, addAsync, containsAllAsync, containsAsync, removeAllAsync, removeAsync, retainAllAsync, sizeAsync

Methods inherited from interface org.redisson.api.RExpirable

clearExpire, expire, expire, expireAt, expireAt, remainTimeToLive

Methods inherited from interface org.redisson.api.RExpirableAsync

clearExpireAsync, expireAsync, expireAsync, expireAtAsync, expireAtAsync, remainTimeToLiveAsync

Methods inherited from interface org.redisson.api.RObject

copy, delete, dump, getCodec, getIdleTime, getName, isExists, migrate, move, removeListener, rename, renamenx, restore, restore, restoreAndReplace, restoreAndReplace, sizeInMemory, touch, unlink

Methods inherited from interface org.redisson.api.RObjectAsync

copyAsync, deleteAsync, dumpAsync, getIdleTimeAsync, isExistsAsync, migrateAsync, moveAsync, removeListenerAsync, renameAsync, renamenxAsync, restoreAndReplaceAsync, restoreAndReplaceAsync, restoreAsync, restoreAsync, sizeInMemoryAsync, touchAsync, unlinkAsync

Methods inherited from interface org.redisson.api.RPriorityQueue

comparator, pollLastAndOfferFirstTo, readAll, trySetComparator

Methods inherited from interface org.redisson.api.RQueue

addListener

Methods inherited from interface org.redisson.api.RQueueAsync

addListenerAsync, peekAsync, pollAsync, pollLastAndOfferFirstToAsync, readAllAsync

Constructor Detail

RedissonPriorityBlockingQueue

protected RedissonPriorityBlockingQueue(CommandAsyncExecutor commandExecutor,
                                         name,
                                        RedissonClient redisson)

RedissonPriorityBlockingQueue

protected RedissonPriorityBlockingQueue(Codec codec,
                                        CommandAsyncExecutor commandExecutor,
                                         name,
                                        RedissonClient redisson)

Method Detail

put

public void put(V e)
         throws 

Specified by:

in interface <V>

Throws:

offer

public boolean offer(V e,
                     long timeout,
                      unit)
              throws 

Specified by:

in interface <V>

Throws:

takeAsync

public RFuture<V> takeAsync()

Description copied from interface: RBlockingQueueAsync

Retrieves and removes the head of this queue in async mode, waiting if necessary until an element becomes available.

Specified by:

takeAsync in interface RBlockingQueueAsync<V>

Returns:

the head of this queue

takeAsync

protected <T> void takeAsync(RPromise<V> result,
                             long delay,
                             long timeoutInMicro,
                             RedisCommand<T> command,
                             ... params)

take

public V take()
       throws 

Specified by:

in interface <V>

Throws:

pollAsync

public RFuture<V> pollAsync(long timeout,
                             unit)

Description copied from interface: RBlockingQueueAsync

Retrieves and removes the head of this queue in async mode, waiting up to the specified wait time if necessary for an element to become available.

Specified by:

pollAsync in interface RBlockingQueueAsync<V>

Parameters:

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

Returns:

the head of this queue, or null if the specified waiting time elapses before an element is available

poll

public V poll(long timeout,
               unit)
       throws 

Specified by:

in interface <V>

Throws:

pollFromAny

public V pollFromAny(long timeout,
                      unit,
                     ... queueNames)
              throws 

Description copied from interface: RBlockingQueue

Retrieves and removes first available head element of any queue, waiting up to the specified wait time if necessary for an element to become available in any of defined queues including queue itself.

Specified by:

pollFromAny in interface RBlockingQueue<V>

Parameters:

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

queueNames - - queue names. Queue name itself is always included

Returns:

the head of this queue, or null if the specified waiting time elapses before an element is available

Throws:

- if interrupted while waiting

pollLastAndOfferFirstToAsync

public  queueName,
                                               long timeout,
                                                unit)

Description copied from interface: RBlockingQueueAsync

Retrieves and removes last available tail element of this queue and adds it at the head of queueName, waiting up to the specified wait time if necessary for an element to become available.

Specified by:

pollLastAndOfferFirstToAsync in interface RBlockingQueueAsync<V>

Parameters:

queueName - - names of destination queue

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

Returns:

the tail of this queue, or null if the specified waiting time elapses before an element is available

pollLastAndOfferFirstTo

public  queueName,
                                 long timeout,
                                  unit)
                          throws 

Description copied from interface: RBlockingQueue

Retrieves and removes last available tail element of this queue and adds it at the head of queueName, waiting up to the specified wait time if necessary for an element to become available.

Specified by:

pollLastAndOfferFirstTo in interface RBlockingQueue<V>

Parameters:

queueName - - names of destination queue

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

Returns:

the tail of this queue, or null if the specified waiting time elapses before an element is available

Throws:

- if interrupted while waiting

takeLastAndOfferFirstTo

public  queueName)
                          throws 

Description copied from interface: RBlockingQueue

Retrieves and removes last available tail element of any queue and adds it at the head of queueName, waiting if necessary for an element to become available in any of defined queues including queue itself.

Specified by:

takeLastAndOfferFirstTo in interface RBlockingQueue<V>

Parameters:

queueName - - names of destination queue

Returns:

the tail of this queue, or null if the specified waiting time elapses before an element is available

Throws:

- if interrupted while waiting

subscribeOnElements

public int subscribeOnElements(<V> consumer)

Description copied from interface: RBlockingQueue

Subscribes on elements appeared in this queue. Continuously invokes RBlockingQueueAsync.takeAsync() method to get a new element.

Specified by:

subscribeOnElements in interface RBlockingQueue<V>

Parameters:

consumer - - queue elements listener

Returns:

listenerId - id of listener

unsubscribe

public void unsubscribe(int listenerId)

Description copied from interface: RBlockingQueue

Un-subscribes defined listener.

Specified by:

unsubscribe in interface RBlockingQueue<V>

Parameters:

listenerId - - id of listener

takeLastAndOfferFirstToAsync

public  queueName)

Description copied from interface: RBlockingQueueAsync

Retrieves and removes last available tail element of any queue and adds it at the head of queueName, waiting if necessary for an element to become available in any of defined queues including queue itself.

Specified by:

takeLastAndOfferFirstToAsync in interface RBlockingQueueAsync<V>

Parameters:

queueName - - names of destination queue

Returns:

the tail of this queue, or null if the specified waiting time elapses before an element is available

remainingCapacity

public int remainingCapacity()

Specified by:

in interface <V>

drainTo

public int drainTo(<? super V> c)

Specified by:

in interface <V>

drainToAsync

public > drainToAsync(<? super V> c)

Description copied from interface: RBlockingQueueAsync

Removes all available elements from this queue and adds them to the given collection in async mode. This operation may be more efficient than repeatedly polling this queue. A failure encountered while attempting to add elements to collection c may result in elements being in neither, either or both collections when the associated exception is thrown. Attempts to drain a queue to itself result in IllegalArgumentException. Further, the behavior of this operation is undefined if the specified collection is modified while the operation is in progress.

Specified by:

drainToAsync in interface RBlockingQueueAsync<V>

Parameters:

c - the collection to transfer elements into

Returns:

the number of elements transferred

drainTo

public int drainTo(<? super V> c,
                   int maxElements)

Specified by:

in interface <V>

drainToAsync

public > drainToAsync(<? super V> c,
                                     int maxElements)

Description copied from interface: RBlockingQueueAsync

Removes at most the given number of available elements from this queue and adds them to the given collection in async mode. A failure encountered while attempting to add elements to collection c may result in elements being in neither, either or both collections when the associated exception is thrown. Attempts to drain a queue to itself result in IllegalArgumentException. Further, the behavior of this operation is undefined if the specified collection is modified while the operation is in progress.

Specified by:

drainToAsync in interface RBlockingQueueAsync<V>

Parameters:

c - the collection to transfer elements into

maxElements - the maximum number of elements to transfer

Returns:

the number of elements transferred

offerAsync

public > offerAsync(V e)

Description copied from interface: RQueueAsync

Inserts the specified element into this queue.

Specified by:

offerAsync in interface RQueueAsync<V>

Overrides:

offerAsync in class RedissonPriorityQueue<V>

Parameters:

e - the element to add

Returns:

true if successful, or false

pollAsync

public <V>> pollAsync(int limit)

Description copied from interface: RQueueAsync

Retrieves and removes the head elements of this queue. Elements amount limited by limit param.

Specified by:

pollAsync in interface RQueueAsync<V>

Overrides:

pollAsync in class RedissonPriorityQueue<V>

Returns:

list of head elements

pollFromAnyAsync

public RFuture<V> pollFromAnyAsync(long timeout,
                                    unit,
                                   ... queueNames)

Description copied from interface: RBlockingQueueAsync

Retrieves and removes first available head element of any queue in async mode, waiting up to the specified wait time if necessary for an element to become available in any of defined queues including queue itself.

Specified by:

pollFromAnyAsync in interface RBlockingQueueAsync<V>

Parameters:

timeout - how long to wait before giving up, in units of unit

unit - a TimeUnit determining how to interpret the timeout parameter

queueNames - - queue names. Queue name itself is always included

Returns:

Future object with the head of this queue, or null if the specified waiting time elapses before an element is available

putAsync

public > putAsync(V e)

Description copied from interface: RBlockingQueueAsync

Inserts the specified element into this queue in async mode, waiting if necessary for space to become available.

Specified by:

putAsync in interface RBlockingQueueAsync<V>

Parameters:

e - the element to add

Returns:

void

poll

public <V> poll(int limit)

Description copied from interface: RQueue

Retrieves and removes the head elements of this queue. Elements amount limited by limit param.

Specified by:

poll in interface RQueue<V>

Overrides:

poll in class RedissonPriorityQueue<V>

Returns:

list of head elements

expire

public boolean expire(long timeToLive,
                       timeUnit)

Description copied from interface: RExpirable

Set a timeout for object. After the timeout has expired, the key will automatically be deleted.

Specified by:

expire in interface RExpirable

Parameters:

timeToLive - - timeout before object will be deleted

timeUnit - - timeout time unit

Returns:

true if the timeout was set and false if not

expireAt

public boolean expireAt(long timestamp)

Description copied from interface: RExpirable

Use RExpirable.expire(Instant) instead

Specified by:

expireAt in interface RExpirable

Parameters:

timestamp - - expire date in milliseconds (Unix timestamp)

Returns:

true if the timeout was set and false if not

expireAtAsync

public > expireAtAsync(long timestamp)

Description copied from interface: RExpirableAsync

Use RExpirableAsync.expireAsync(Instant) instead

Specified by:

expireAtAsync in interface RExpirableAsync

Parameters:

timestamp - - expire date in milliseconds (Unix timestamp)

Returns:

true if the timeout was set and false if not

expire

public boolean expire( instant)

Description copied from interface: RExpirable

Set an expire date for object. When expire date comes the key will automatically be deleted.

Specified by:

expire in interface RExpirable

Parameters:

instant - - expire date

Returns:

true if the timeout was set and false if not

expireAsync

public > expireAsync( instant)

Description copied from interface: RExpirableAsync

Set an expire date for object. When expire date comes the key will automatically be deleted.

Specified by:

expireAsync in interface RExpirableAsync

Parameters:

instant - - expire date

Returns:

true if the timeout was set and false if not

expireAt

public boolean expireAt( timestamp)

Description copied from interface: RExpirable

Use RExpirable.expire(Instant) instead

Specified by:

expireAt in interface RExpirable

Parameters:

timestamp - - expire date

Returns:

true if the timeout was set and false if not

expireAtAsync

public > expireAtAsync( timestamp)

Description copied from interface: RExpirableAsync

Use RExpirableAsync.expireAsync(Instant) instead

Specified by:

expireAtAsync in interface RExpirableAsync

Parameters:

timestamp - - expire date

Returns:

true if the timeout was set and false if not

clearExpire

public boolean clearExpire()

Description copied from interface: RExpirable

Clear an expire timeout or expire date for object.

Specified by:

clearExpire in interface RExpirable

Returns:

true if timeout was removed false if object does not exist or does not have an associated timeout

remainTimeToLive

public long remainTimeToLive()

Description copied from interface: RExpirable

Remaining time to live of Redisson object that has a timeout

Specified by:

remainTimeToLive in interface RExpirable

Returns:

time in milliseconds -2 if the key does not exist. -1 if the key exists but has no associated expire.

remainTimeToLiveAsync

public > remainTimeToLiveAsync()

Description copied from interface: RExpirableAsync

Remaining time to live of Redisson object that has a timeout

Specified by:

remainTimeToLiveAsync in interface RExpirableAsync

Returns:

time in milliseconds -2 if the key does not exist. -1 if the key exists but has no associated expire.

expireAsync

protected > expireAsync(long timeToLive,
                                        timeUnit,
                                       ... keys)

clearExpireAsync

protected > clearExpireAsync(... keys)