swaydb.java.persistent

Class Set<K>

java.lang.Object

swaydb.java.persistent.Set<K>

Type Parameters:

K - the type of the key element

All Implemented Interfaces:

Closeable, AutoCloseable, Set<K>

public class Set<K>
extends Object
implements Set<K>, Closeable

The persistent Set of data.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Set.Builder<K>

Constructor Summary

Constructors

Constructor and Description
Set(swaydb.Set<K> database) Constructs the Set object.

Method Summary

Modifier and Type	Method and Description
boolean	add(K key) Adds the key to this set.
boolean	add(K key, LocalDateTime expireAt) Adds the key with expire at to this set.
boolean	add(K key, long expireAfter, TimeUnit timeUnit) Adds the key with expire after to this set.
boolean	add(List<? extends K> list) Adds the keys to this set.
Set<K>	asJava() Returns the java set of this set.
static <K> Set.Builder<K>	builder() Creates the builder.
void	clear() Clears this set.
void	close() Closes the database.
swaydb.data.accelerate.Level0Meter	commit(swaydb.Prepare<K,scala.runtime.Nothing$>... prepares) Starts the commit function for this set.
boolean	contains(K key) Checks if a set contains key.
boolean	containsAll(Collection<K> collection) Checks if a set contains key collection.
static <K> Set<K>	create(Object keySerializer, Path dir) Creates the set.
LocalDateTime	expiration(K key) Returns the expiration date for key in this set.
boolean	expire(K key, LocalDateTime expireAt) Setups the expiration at for key to this set.
boolean	expire(K key, long after, TimeUnit timeUnit) Setups the expiration after for key to this set.
boolean	isEmpty() Checks if a set is empty.
Iterator<K>	iterator() Returns the iterator of elements in this set.
swaydb.data.accelerate.Level0Meter	level0Meter() Returns the level of meter for zerro level.
Optional<swaydb.data.compaction.LevelMeter>	level1Meter() Returns the level of meter for first level.
Optional<swaydb.data.compaction.LevelMeter>	levelMeter(int levelNumber) Returns the level of meter for level.
boolean	mightContain(K key) Checks if a set might contain key.
boolean	nonEmpty() Checks if a set is not empty.
boolean	remove(K key) Removes the key of this set.
void	remove(K from, K to) Removes the keys of this set.
void	remove(Set<K> keys) Removes the keys of this set.
boolean	retainAll(Collection<K> collection) Retains the keys to this set.
int	size() Returns the size of elements in this set.
long	sizeOfSegments() Returns the size for segments for this set.
Duration	timeLeft(K key) Returns the time left for key in this set.
Object[]	toArray() Returns the array of elements in this set.
<T> T[]	toArray(T[] a) Returns the typed array of elements in this set.

Methods inherited from class java.lang.Object

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

Constructor Detail

Set

public Set(swaydb.Set<K> database)

Constructs the Set object.

Parameters:

database - the database

Method Detail

contains

public boolean contains(K key)

Checks if a set contains key.

Specified by:

contains in interface Set<K>

Parameters:

key - the key

Returns:

true if a set contains key, false otherwise

mightContain

public boolean mightContain(K key)

Checks if a set might contain key.

Specified by:

mightContain in interface Set<K>

Parameters:

key - the key

Returns:

true if a set might contain key, false otherwise

iterator

public Iterator<K> iterator()

Returns the iterator of elements in this set.

Specified by:

iterator in interface Set<K>

Returns:

the iterator of elements in this set

toArray

public Object[] toArray()

Returns the array of elements in this set.

Specified by:

toArray in interface Set<K>

Returns:

the array of elements in this set

toArray

public <T> T[] toArray(T[] a)

Returns the typed array of elements in this set.

Specified by:

toArray in interface Set<K>

Type Parameters:

T - the type of the array

Parameters:

a - the typed object

Returns:

the typed array of elements in this set

add

public boolean add(K key)

Adds the key to this set.

Specified by:

add in interface Set<K>

Parameters:

key - the key

Returns:

true if a set contained key, false otherwise

add

public boolean add(K key,
                   long expireAfter,
                   TimeUnit timeUnit)

Adds the key with expire after to this set.

Specified by:

add in interface Set<K>

Parameters:

key - the key

expireAfter - the expireAfter

timeUnit - the timeUnit

Returns:

true if a set contained key, false otherwise

add

public boolean add(K key,
                   LocalDateTime expireAt)

Adds the key with expire at to this set.

Specified by:

add in interface Set<K>

Parameters:

key - the key

expireAt - the expireAt

Returns:

true if a set contained key, false otherwise

expire

public boolean expire(K key,
                      long after,
                      TimeUnit timeUnit)

Setups the expiration after for key to this set.

Specified by:

expire in interface Set<K>

Parameters:

key - the key

after - the after

timeUnit - the timeUnit

Returns:

the old value for this key or null

expire

public boolean expire(K key,
                      LocalDateTime expireAt)

Setups the expiration at for key to this set.

Specified by:

expire in interface Set<K>

Parameters:

key - the key

expireAt - the expireAt

Returns:

the old value for this key or null

containsAll

public boolean containsAll(Collection<K> collection)

Checks if a set contains key collection.

Specified by:

containsAll in interface Set<K>

Parameters:

collection - the collection

Returns:

true if a set contains key, false otherwise

add

public boolean add(List<? extends K> list)

Adds the keys to this set.

Specified by:

add in interface Set<K>

Parameters:

list - the list

Returns:

true if a set contained keys, false otherwise

retainAll

public boolean retainAll(Collection<K> collection)

Retains the keys to this set.

Specified by:

retainAll in interface Set<K>

Parameters:

collection - the collection

Returns:

true if a set contained keys, false otherwise

remove

public void remove(Set<K> keys)

Removes the keys of this set.

Specified by:

remove in interface Set<K>

Parameters:

keys - the keys

remove

public void remove(K from,
                   K to)

Removes the keys of this set.

Specified by:

remove in interface Set<K>

Parameters:

from - the from

to - the to

size

public int size()

Returns the size of elements in this set.

Specified by:

size in interface Set<K>

Returns:

the size of elements in this set

isEmpty

public boolean isEmpty()

Checks if a set is empty.

Specified by:

isEmpty in interface Set<K>

Returns:

true if a set is empty, false otherwise

nonEmpty

public boolean nonEmpty()

Checks if a set is not empty.

Specified by:

nonEmpty in interface Set<K>

Returns:

true if a set is not empty, false otherwise

expiration

public LocalDateTime expiration(K key)

Returns the expiration date for key in this set.

Specified by:

expiration in interface Set<K>

Parameters:

key - the key

Returns:

the expiration date for key in this set

timeLeft

public Duration timeLeft(K key)

Returns the time left for key in this set.

Specified by:

timeLeft in interface Set<K>

Parameters:

key - the key

Returns:

the time left for key in this set

sizeOfSegments

public long sizeOfSegments()

Returns the size for segments for this set.

Specified by:

sizeOfSegments in interface Set<K>

Returns:

the size for segments for this set

level0Meter

public swaydb.data.accelerate.Level0Meter level0Meter()

Returns the level of meter for zerro level.

Specified by:

level0Meter in interface Set<K>

Returns:

the level of meter for zerro level

level1Meter

public Optional<swaydb.data.compaction.LevelMeter> level1Meter()

Returns the level of meter for first level.

Returns:

the level of meter for first level

levelMeter

public Optional<swaydb.data.compaction.LevelMeter> levelMeter(int levelNumber)

Returns the level of meter for level.

Specified by:

levelMeter in interface Set<K>

Parameters:

levelNumber - the level number

Returns:

the level of meter for first level

clear

public void clear()

Clears this set.

Specified by:

clear in interface Set<K>

remove

public boolean remove(K key)

Removes the key of this set.

Specified by:

remove in interface Set<K>

Parameters:

key - the key

Returns:

true if old key was present, false otherwise

asJava

public Set<K> asJava()

Returns the java set of this set.

Specified by:

asJava in interface Set<K>

Returns:

the java set of this set

close

public void close()

Closes the database.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

commit

public swaydb.data.accelerate.Level0Meter commit(swaydb.Prepare<K,scala.runtime.Nothing$>... prepares)

Starts the commit function for this set.

Specified by:

commit in interface Set<K>

Parameters:

prepares - the prepares

Returns:

the level zerro for this set

create

public static <K> Set<K> create(Object keySerializer,
                                Path dir)

Creates the set.

Type Parameters:

K - the type of the key element

Parameters:

keySerializer - the keySerializer

dir - the dir

Returns:

the set

builder

public static <K> Set.Builder<K> builder()

Creates the builder.

Type Parameters:

K - the type of the key element

Returns:

the builder