net.sf.jkniv.cache

Class CacheManager<K,V>

java.lang.Object

net.sf.jkniv.cache.CacheManager<K,V>

public class CacheManager<K,V>
extends Object

Manager the live of cache entries. To enable logging for cache configure logger category:

   <logger name="jkniv.utils.CACHE" additivity="false">
     <level value="debug" />
     <appender-ref ref="console" />
   </logger>
 

Since:

0.6.0

Author:

Alisson Gomes

Constructor Summary

Constructors

Constructor and Description
CacheManager() Create a new cache manager with 5 seconds for initial delay to first execution and 5 minutes for period between successive executions.
CacheManager(long period) Create a new cache manager with 5 seconds for initial delay to first execution and configurable parameter for period to between successive executions.
CacheManager(long initialDelay, long period) Create a new cache manager with configurable initialDelay and period.
CacheManager(long delay, long period, CachePolicy policy) Create a new cache manager with configurable initialDelay and period.

Method Summary

Modifier and Type	Method and Description
Cacheable<K,V>	add(String key) Create a new Memory cache to be managed with a default policy
Cacheable<K,V>	add(String key, Cacheable<K,V> cache) Add a new cache for manager
CachePolicy	add(String policyName, CachePolicy policy) Add new policy with specific name
Cacheable<K,V>	add(String key, String policyName, Cacheable<K,V> cache) Add a new cache for manager
void	cancel()
void	pooling()
int	size() Returns the number of caches in this manager
long	total() Returns the total of elements in all cache entries in this manager.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheManager

public CacheManager()

Create a new cache manager with 5 seconds for initial delay to first execution and 5 minutes for period between successive executions.

CacheManager

public CacheManager(long period)

Create a new cache manager with 5 seconds for initial delay to first execution and configurable parameter for period to between successive executions.

Parameters:

period - the period between successive executions

CacheManager

public CacheManager(long initialDelay,
                    long period)

Create a new cache manager with configurable initialDelay and period.

Parameters:

initialDelay - seconds to the time to delay first execution

period - seconds to the period between successive executions

CacheManager

public CacheManager(long delay,
                    long period,
                    CachePolicy policy)

Create a new cache manager with configurable initialDelay and period.

Parameters:

delay - seconds to the time to delay first execution

period - seconds to the period between successive executions

policy - default policy for cache entries add(String, Cacheable)

Method Detail

add

public CachePolicy add(String policyName,
                       CachePolicy policy)

Add new policy with specific name

Parameters:

policyName - name of policy

policy - policy to manager a cache

Returns:

the previous value associated with policyName, or null if there was no mapping for policyName

add

public Cacheable<K,V> add(String key,
                          Cacheable<K,V> cache)

Add a new cache for manager

Parameters:

key - cache identify

cache - the managed cache

Returns:

the previous value associated with key, or null if there was no mapping for key

add

public Cacheable<K,V> add(String key,
                          String policyName,
                          Cacheable<K,V> cache)

Add a new cache for manager

Parameters:

key - cache identify

policyName - name of policy, the cache no exist a default cache is associated

cache - the managed cache

Returns:

the previous value associated with key, or null if there was no mapping for key

add

public Cacheable<K,V> add(String key)

Create a new Memory cache to be managed with a default policy

Parameters:

key - cache identify

Returns:

the new Cache created

pooling

public void pooling()

cancel

public void cancel()

total

public long total()

Returns the total of elements in all cache entries in this manager.

Returns:

the sum of all cache elements in this manager

size

public int size()

Returns the number of caches in this manager

Returns:

the number of cache.