org.scijava.cache

Class DefaultCacheService

java.lang.Object

org.scijava.AbstractContextual

org.scijava.plugin.AbstractRichPlugin

org.scijava.service.AbstractService

org.scijava.cache.DefaultCacheService

All Implemented Interfaces:

Comparable<Prioritized>, CacheService, Contextual, Disposable, HasPluginInfo, RichPlugin, SciJavaPlugin, Prioritized, SciJavaService, Service

public class DefaultCacheService
extends AbstractService
implements CacheService

Trivial CacheService implementation. Wraps a WeakHashMap

Constructor Summary

Constructors

Constructor and Description
DefaultCacheService()

Method Summary

Modifier and Type	Method and Description
Object	get(Object key)
<V> V	get(Object key, Callable<V> valueLoader)
void	initialize() Performs any needed initialization when the service is first loaded.
void	put(Object key, Object value) Stores the given object in the cache.

Methods inherited from class org.scijava.service.AbstractService

dispose, getContext, registerEventHandlers, setContext, toString

Methods inherited from class org.scijava.plugin.AbstractRichPlugin

compareTo, getInfo, getPriority, setInfo, setPriority

Methods inherited from class org.scijava.AbstractContextual

context

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.scijava.service.Service

registerEventHandlers

Methods inherited from interface org.scijava.Contextual

context, getContext, setContext

Methods inherited from interface org.scijava.Prioritized

getPriority, setPriority

Methods inherited from interface java.lang.Comparable

compareTo

Methods inherited from interface org.scijava.plugin.HasPluginInfo

getInfo, setInfo

Methods inherited from interface org.scijava.Disposable

dispose

Constructor Detail

DefaultCacheService

public DefaultCacheService()

Method Detail

put

public void put(Object key,
                Object value)

Description copied from interface: CacheService

Stores the given object in the cache.

Specified by:

put in interface CacheService

Parameters:

key - A key.

value - A value.

get

public Object get(Object key)

Specified by:

get in interface CacheService

Parameters:

key - A key

Returns:

The cached object, or null if the object is not in the cache.

get

public <V> V get(Object key,
                 Callable<V> valueLoader)
          throws ExecutionException

Specified by:

get in interface CacheService

Parameters:

key - A key

valueLoader - A value loader which will be used if null is returned for the given key.

Returns:

The cached object, or if the object is not in the cache the result of the value loader.

Throws:

ExecutionException

initialize

public void initialize()

Description copied from interface: Service

Performs any needed initialization when the service is first loaded.

NB: This method is not intended to be called directly. It is called by the service framework itself (specifically by the ServiceHelper) when initializing the service. It should not be called a second time.

Specified by:

initialize in interface Service

Overrides:

initialize in class AbstractService