org.springframework.data.aerospike.cache

Class AerospikeCache

java.lang.Object

org.springframework.data.aerospike.cache.AerospikeCache

All Implemented Interfaces:

Cache

public class AerospikeCache
extends Object
implements Cache

A Cache Cache implementation backed by Aerospike database as store. Create and configure Aerospike cache instances via AerospikeCacheManager.

Author:

Venil Noronha

Nested Class Summary

Nested classes/interfaces inherited from interface org.springframework.cache.Cache

Cache.ValueRetrievalException, Cache.ValueWrapper

Constructor Summary

Constructors

Constructor and Description
AerospikeCache(String name, com.aerospike.client.IAerospikeClient client, AerospikeConverter aerospikeConverter, AerospikeCacheConfiguration cacheConfiguration)

Method Summary

Modifier and Type	Method and Description
void	clear() Clears the cache by truncating the configured cache's set (in the configured namespace).
void	evict(Object key) Deletes the key from Aerospike database.
Cache.ValueWrapper	get(Object key) Returns the value (bins) from the Aerospike database to which this cache maps the specified key.
<T> T	get(Object key, Callable<T> valueLoader) Return the value (bins) from the Aerospike database to which this cache maps the specified key, obtaining that value from valueLoader if necessary.
<T> T	get(Object key, Class<T> type) Return the value (bins) from the Aerospike database to which this cache maps the specified key.
String	getName() Get cache's name.
Object	getNativeCache() Get the underlying native cache provider - the Aerospike client.
void	put(Object key, Object value) Write the key-value pair to Aerospike database.
Cache.ValueWrapper	putIfAbsent(Object key, Object value) Write the key-value pair to Aerospike database if the key doesn't already exists.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.cache.Cache

evictIfPresent, invalidate

Constructor Detail

AerospikeCache

public AerospikeCache(String name,
                      com.aerospike.client.IAerospikeClient client,
                      AerospikeConverter aerospikeConverter,
                      AerospikeCacheConfiguration cacheConfiguration)

Method Detail

clear

public void clear()

Clears the cache by truncating the configured cache's set (in the configured namespace).

Specified by:

clear in interface Cache

evict

public void evict(Object key)

Deletes the key from Aerospike database.

Specified by:

evict in interface Cache

Parameters:

key - The key to delete.

getName

public String getName()

Get cache's name.

Specified by:

getName in interface Cache

Returns:

The cache's name.

getNativeCache

public Object getNativeCache()

Get the underlying native cache provider - the Aerospike client.

Specified by:

getNativeCache in interface Cache

Returns:

The aerospike client.

get

public <T> T get(Object key,
                 Callable<T> valueLoader)

Return the value (bins) from the Aerospike database to which this cache maps the specified key, obtaining that value from valueLoader if necessary. This method provides a simple substitute for the conventional "if cached, return; otherwise create, cache and return" pattern.

Specified by:

get in interface Cache

Parameters:

key - The key whose associated value is to be returned.

valueLoader - The value loader that might contain the value (bins).

Returns:

The value (bins) to which this cache maps the specified key.

get

public <T> T get(Object key,
                 Class<T> type)

Return the value (bins) from the Aerospike database to which this cache maps the specified key. Generically specifying a type that return value will be cast to.

Specified by:

get in interface Cache

Parameters:

key - The key whose associated value (bins) is to be returned.

type - The required type of the returned value (may be null to bypass a type check; in case of a null value found in the cache, the specified type is irrelevant).

Returns:

The value (bins) to which this cache maps the specified key (which may be null itself), or also null if the cache contains no mapping for this key.

get

public Cache.ValueWrapper get(Object key)

Returns the value (bins) from the Aerospike database to which this cache maps the specified key. Returns null if the cache contains no mapping for this key; otherwise, the cached value (which may be null itself) will be returned in a Cache.ValueWrapper.

Specified by:

get in interface Cache

Parameters:

key - The key whose associated value (bins) is to be returned.

Returns:

The value (bins) to which this cache maps the specified key, contained within a Cache.ValueWrapper which may also hold a cached null value. A straight null being returned means that the cache contains no mapping for this key.

put

public void put(Object key,
                Object value)

Write the key-value pair to Aerospike database.

Specified by:

put in interface Cache

Parameters:

key - The key to write.

value - The value to write.

putIfAbsent

public Cache.ValueWrapper putIfAbsent(Object key,
                                      Object value)

Write the key-value pair to Aerospike database if the key doesn't already exists.

Specified by:

putIfAbsent in interface Cache

Parameters:

key - The key to write.

value - The value (bins) to write.

Returns:

In case the key already exists return the existing value, else return null.