org.infobip.lib.popout

Class FileQueue<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractQueue<T>

org.infobip.lib.popout.FileQueue<T>

Type Parameters:

T - the type of elements in this queue

All Implemented Interfaces:

AutoCloseable, Iterable<T>, Collection<T>, Queue<T>

public abstract class FileQueue<T>
extends AbstractQueue<T>
implements AutoCloseable

File-based Queue implementation.

Since:

1.0.0

Author:

Artem Labazin

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	FileQueue.Builder<SELF extends FileQueue.Builder<SELF,T>,T> The abstract file-based queue builder with common options and parameters for all such queues implementations.

Constructor Summary

Constructors

Constructor and Description
FileQueue()

Method Summary

Modifier and Type	Method and Description
static <T> BatchedFileQueueBuilder<T>	batched() Start creating batched queue implementation.
abstract void	close()
abstract void	compress() Compresses the WAL files manually.
abstract long	diskSize() Returns the file system backed size occupied by the queue.
abstract void	flush() Flushes all this queue's data to the disk.
abstract long	longSize() Returns the number of elements in this collection.
static <T> SyncedFileQueueBuilder<T>	synced() Start creating synced queue implementation.

Methods inherited from class java.util.AbstractQueue

add, addAll, clear, element, remove

Methods inherited from class java.util.AbstractCollection

contains, containsAll, isEmpty, iterator, remove, removeAll, retainAll, size, toArray, toArray, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Queue

offer, peek, poll

Methods inherited from interface java.util.Collection

contains, containsAll, equals, hashCode, isEmpty, iterator, parallelStream, remove, removeAll, removeIf, retainAll, size, spliterator, stream, toArray, toArray

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

FileQueue

public FileQueue()

Method Detail

synced

public static <T> SyncedFileQueueBuilder<T> synced()

Start creating synced queue implementation.

Type Parameters:

T - the type of elements in this queue

Returns:

a queue builder object

batched

public static <T> BatchedFileQueueBuilder<T> batched()

Start creating batched queue implementation.

Type Parameters:

T - the type of elements in this queue

Returns:

a queue builder object

longSize

public abstract long longSize()

Returns the number of elements in this collection.

Returns:

the number of elements in this collection

diskSize

public abstract long diskSize()

Returns the file system backed size occupied by the queue.

Returns:

the queue size (in bytes) on a disk

flush

public abstract void flush()

Flushes all this queue's data to the disk.

compress

public abstract void compress()

Compresses the WAL files manually.

close

public abstract void close()

Specified by:

close in interface AutoCloseable