Package org.incendo.cloud.processors.cache

Class SimpleCache<K,V>

java.lang.Object

org.incendo.cloud.processors.cache.SimpleCache<K,V>

Type Parameters:

K - key type

V - value type

All Implemented Interfaces:

CloudCache<K,V>

@API(status=STABLE,
     since="1.0.0")
public final class SimpleCache<K,V>
extends Object
implements CloudCache<K,V>

Implementation of CloudCache backed by a WeakHashMap. It is not recommended to use this implementation, and it should only be used if CaffeineCache or GuavaCache may not be used.

This will not enforce any size constraints.

Since:

1.0.0

Constructor Summary

Constructors

Constructor	Description
SimpleCache()

Method Summary

Modifier and Type	Method	Description
void	delete(@NonNull K key)	Deletes the entry identified by the given key.
@Nullable V	getIfPresent(@NonNull K key)	Returns the value identified by the given key, if it exists.
static <K, V> @NonNull CloudCache<K,V>	of()	Creates a new SimpleCache instance.
@Nullable V	popIfPresent(@NonNull K key)	Deletes the value identified by the given key and returns the value.
void	put(@NonNull K key, @NonNull V value)	Stores the given value identified by the given key.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.incendo.cloud.processors.cache.CloudCache

get, keyExtractingView

Constructor Details

SimpleCache

public SimpleCache()

Method Details

of

public static <K,
V> @NonNull CloudCache<K,V> of()

Creates a new SimpleCache instance.

Type Parameters:

K - key type

V - value type

Returns:

the created cache instance

delete

public void delete(@NonNull K key)

Description copied from interface: CloudCache

Deletes the entry identified by the given key.

Specified by:

delete in interface CloudCache<K,V>

Parameters:

key - the key

put

public void put(@NonNull K key,
 @NonNull V value)

Description copied from interface: CloudCache

Stores the given value identified by the given key.

Specified by:

put in interface CloudCache<K,V>

Parameters:

key - the key

value - the value

getIfPresent

public @Nullable V getIfPresent(@NonNull K key)

Description copied from interface: CloudCache

Returns the value identified by the given key, if it exists.

Specified by:

getIfPresent in interface CloudCache<K,V>

Parameters:

key - the key

Returns:

the value, or null

popIfPresent

public @Nullable V popIfPresent(@NonNull K key)

Description copied from interface: CloudCache

Deletes the value identified by the given key and returns the value.

Specified by:

popIfPresent in interface CloudCache<K,V>

Parameters:

key - the key

Returns:

the value, or null