Package com.tangosol.coherence.config.scheme

Class OverflowScheme

java.lang.Object

com.tangosol.coherence.config.scheme.AbstractScheme

com.tangosol.coherence.config.scheme.AbstractServiceScheme

com.tangosol.coherence.config.scheme.AbstractCachingScheme

com.tangosol.coherence.config.scheme.AbstractLocalCachingScheme

com.tangosol.coherence.config.scheme.AbstractCompositeScheme

com.tangosol.coherence.config.scheme.OverflowScheme

All Implemented Interfaces:

BackingMapManagerBuilder, BuilderCustomization, MapBuilder, NamedCacheBuilder, ServiceBuilder, CachingScheme, ObservableCachingScheme, Scheme, ServiceScheme

public class OverflowScheme
extends AbstractCompositeScheme

The OverflowScheme is used to create an instance of an OverflowMap or a SimpleOverflowMap.

Since:

Coherence 12.1.2

Author:

pfm 2011.11.30

Nested Class Summary

Nested classes/interfaces inherited from interface com.tangosol.coherence.config.builder.MapBuilder

MapBuilder.Dependencies

Field Summary

Fields inherited from class com.tangosol.coherence.config.scheme.AbstractServiceScheme

m_serviceDependencies

Fields inherited from interface com.tangosol.coherence.config.scheme.ServiceScheme

DELIM_APPLICATION_SCOPE, DELIM_DOMAIN_PARTITION

Constructor Summary

Constructors

Constructor	Description
OverflowScheme()

Method Summary

Modifier and Type	Method	Description
void	establishMapListeners(Map map, ParameterResolver resolver, MapBuilder.Dependencies dependencies)	Establishes an appropriate MapListener (provided by the ObservableCachingScheme.getListenerBuilder()) on the ObservableMap that was produced by the ObservableCachingScheme.
Seconds	getExpiryDelay(ParameterResolver resolver)	Return the amount of time since the last update that entries are kept by the cache before being expired.
LocalScheme	getMissCacheScheme()	Return the scheme for the cache used to maintain information on cache misses.
boolean	isExpiryEnabled(ParameterResolver resolver)	Return the expiry enabled flag.
Map	realizeMap(ParameterResolver resolver, MapBuilder.Dependencies dependencies)	Realize a Map based on the state of the MapBuilder, resolvable parameters and provided MapBuilder.Dependencies.
void	setExpiryDelay(Expression<Seconds> expr)	Set the expiry delay.
void	setExpiryEnabled(Expression<Boolean> expr)	Set the expiry enabled flag.
void	setMissCacheScheme(LocalScheme scheme)	Set the miss cache scheme.

Methods inherited from class com.tangosol.coherence.config.scheme.AbstractCompositeScheme

getBackScheme, getFrontScheme, setBackScheme, setFrontScheme, validate

Methods inherited from class com.tangosol.coherence.config.scheme.AbstractLocalCachingScheme

getCustomBuilder, getEventInterceptorBuilders, getServiceType, isRunningClusterNeeded, setCustomBuilder

Methods inherited from class com.tangosol.coherence.config.scheme.AbstractCachingScheme

getDefaultParameterResolver, getListenerBuilder, realizeBackingMapManager, realizeCache, setListenerBuilder

Methods inherited from class com.tangosol.coherence.config.scheme.AbstractServiceScheme

ensureService, getDefaultServiceName, getScopedServiceName, getScopeName, getServiceBuilder, getServiceDependencies, getServiceName, getXml, injectScopeNameIntoService, isAutoStart, realizeService, setAutoStart, setScopeName, setServiceDependencies, setServiceName, setXml

Methods inherited from class com.tangosol.coherence.config.scheme.AbstractScheme

getSchemeName, isAnonymous, setSchemeName, validate

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.tangosol.coherence.config.scheme.Scheme

getSchemeName, isAnonymous

Methods inherited from interface com.tangosol.coherence.config.scheme.ServiceScheme

getScopedServiceName, getServiceBuilder, getServiceName, isAutoStart

Constructor Details

OverflowScheme

public OverflowScheme()

Method Details

realizeMap

public Map realizeMap(ParameterResolver resolver,
 MapBuilder.Dependencies dependencies)

Realize a Map based on the state of the MapBuilder, resolvable parameters and provided MapBuilder.Dependencies.

Specified by:

realizeMap in interface MapBuilder

Overrides:

realizeMap in class AbstractCachingScheme

Parameters:

resolver - the ParameterResolver

dependencies - the MapBuilder.Dependencies for realizing the Map

Returns:

a Map

establishMapListeners

public void establishMapListeners(Map map,
 ParameterResolver resolver,
 MapBuilder.Dependencies dependencies)

Establishes an appropriate MapListener (provided by the ObservableCachingScheme.getListenerBuilder()) on the ObservableMap that was produced by the ObservableCachingScheme.

This method will automatically inject the following types and named values into realized classes that have been annotated with @Injectable.

1. BackingMapManagerContext (optionally named "manager-context")
2. ConfigurableCacheFactory
3. Cache Name (as a String.class named "cache-name")
4. Context ClassLoader (optionally named "class-loader")
5. ResourceRegistry
6. CacheConfig
7. together with any other resource, named or otherwise, available in the ResourceRegistry provided by the ConfigurableCacheFactory.

Specified by:

establishMapListeners in interface ObservableCachingScheme

Overrides:

establishMapListeners in class AbstractCachingScheme

Parameters:

map - an ObservableMap to which to add a MapListener (if the map is not observable, no listeners are added)

resolver - the ParameterResolver to use for resolving builder parameters

dependencies - the MapBuilder dependencies from which to obtain builder information

See Also:

• Injectable

getExpiryDelay

public Seconds getExpiryDelay(ParameterResolver resolver)

Return the amount of time since the last update that entries are kept by the cache before being expired. Entries that have expired are not accessible and are evicted the next time a client accesses the cache. Any attempt to read an expired entry results in a reloading of the entry from the CacheStore.

Parameters:

resolver - the ParameterResolver

Returns:

the expiry delay

setExpiryDelay

@Injectable
public void setExpiryDelay(Expression<Seconds> expr)

Set the expiry delay.

Parameters:

expr - the expiry delay expression

isExpiryEnabled

public boolean isExpiryEnabled(ParameterResolver resolver)

Return the expiry enabled flag.

Parameters:

resolver - the ParameterResolver

Returns:

true if expiry delay is enabled

setExpiryEnabled

@Injectable
public void setExpiryEnabled(Expression<Boolean> expr)

Set the expiry enabled flag.

Parameters:

expr - the Boolean expression set to true if expiry delay is enabled

getMissCacheScheme

public LocalScheme getMissCacheScheme()

Return the scheme for the cache used to maintain information on cache misses. The miss-cache is used track keys which were not found in the cache store. The knowledge that a key is not in the cache store allows some operations to perform faster, as they can avoid querying the potentially slow cache store. A size-limited scheme may be used to control how many misses are cached. If unspecified no cache-miss data is maintained.

Returns:

the miss cache scheme

setMissCacheScheme

@Injectable("miss-cache-scheme")
public void setMissCacheScheme(LocalScheme scheme)

Set the miss cache scheme.

Parameters:

scheme - the miss cache scheme