Package org.anchoranalysis.feature.session.cache.finder

Class DefaultChildCacheFinder

Object

DefaultChildCacheFinder

All Implemented Interfaces:

ChildCacheFinder

public class DefaultChildCacheFinder
extends Object
implements ChildCacheFinder

The default strategy for finding children by always directly taking (or creating a child-cache) as necessary.

Method Summary

Modifier and Type	Method	Description
Optional<Set<ChildCacheName>>	cachesToAvoidInvalidating()	If set, these particular-caches are exceptionally not invalidated during the typical invalidation operation on their parent.
<V extends FeatureInput> FeatureCalculationCache<V>	childCacheFor(FeatureCalculationCache<?> parentCache, CacheCreator factory, ChildCacheName childName, V input)	Selects a child-cache given a parent and a child-name.
ChildCacheFinder	finderForGrandchild()	What finder to use for children-of-children?
static ChildCacheFinder	instance()	Singleton instance of DefaultChildCacheFinder.

Methods inherited from class java.lang.Object

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

Method Details

childCacheFor

public <V extends FeatureInput>
FeatureCalculationCache<V> childCacheFor(FeatureCalculationCache<?> parentCache,
 CacheCreator factory,
 ChildCacheName childName,
 V input)

Description copied from interface: ChildCacheFinder

Selects a child-cache given a parent and a child-name.

This may involve reusing an existing cache, or creating a new one, depending on the strategy.

Specified by:

childCacheFor in interface ChildCacheFinder

Type Parameters:

V - type-of-input to be used to calculate on the child-cache

Parameters:

parentCache - the existing parent-cache

factory - how to create new caches

childName - name of child-cache

input - input to be used for calculations on the child-cache

Returns:

an existing or newly created child-cache depending on the strategy.

finderForGrandchild

public ChildCacheFinder finderForGrandchild()

Description copied from interface: ChildCacheFinder

What finder to use for children-of-children?

Specified by:

finderForGrandchild in interface ChildCacheFinder

Returns:

the finder to use.

instance

public static ChildCacheFinder instance()

Singleton instance of DefaultChildCacheFinder.

Returns:

the singleton instance.

cachesToAvoidInvalidating

public Optional<Set<ChildCacheName>> cachesToAvoidInvalidating()

Description copied from interface: ChildCacheFinder

If set, these particular-caches are exceptionally not invalidated during the typical invalidation operation on their parent.

If not-set, there are no exceptions.

Specified by:

cachesToAvoidInvalidating in interface ChildCacheFinder

Returns:

the names of the caches that are exceptionally not invalidated, if any exist.