org.conqat.lib.commons.cache4j

Class SynchronizedCache<K,V,X extends java.lang.Exception>

java.lang.Object

org.conqat.lib.commons.cache4j.BasicCache<K,V,X>

org.conqat.lib.commons.cache4j.SynchronizedCache<K,V,X>

Type Parameters:

K - the key type. This must have both Object.equals(Object) and Object.hashCode() correctly implemented.

V - the value type. It is generally recommended to use an immutable type here, but this is not required.

X - the type of exception thrown. If no exception will be throws, use NeverThrownRuntimeException.

All Implemented Interfaces:

ICache<K,V,X>

public class SynchronizedCache<K,V,X extends java.lang.Exception>
extends BasicCache<K,V,X>

Cache implementation that is synchronized to support multi-threaded environments.

Constructor Summary

Constructors

Constructor and Description
SynchronizedCache(java.lang.String name, IParameterizedFactory<V,K,X> factory, ICacheBackend<K,V> backend) Constructor.

Method Summary

Modifier and Type	Method and Description
V	obtain(K key) Obtain the value for a key.

Methods inherited from class org.conqat.lib.commons.cache4j.BasicCache

clear, getHits, getMissCostMillis, getMisses, getName

Methods inherited from class java.lang.Object

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

Constructor Detail

SynchronizedCache

public SynchronizedCache(java.lang.String name,
                         IParameterizedFactory<V,K,X> factory,
                         ICacheBackend<K,V> backend)

Constructor.

Method Detail

obtain

public V obtain(K key)
         throws X extends java.lang.Exception

Obtain the value for a key. This returns the cached element is possible. Otherwise the value is calculated (and stored in the cache for later use).

Overridden to provide synchronization.

Specified by:

obtain in interface ICache<K,V,X extends java.lang.Exception>

Overrides:

obtain in class BasicCache<K,V,X extends java.lang.Exception>

Throws:

X extends java.lang.Exception