Package org.anchoranalysis.feature.session.replace

Class CacheAndReuseStrategy<T extends FeatureInput>

Object

CacheAndReuseStrategy<T>

Type Parameters:

T - feature-input type

All Implemented Interfaces:

ReplaceStrategy<T>

public class CacheAndReuseStrategy<T extends FeatureInput>
extends Object
implements ReplaceStrategy<T>

Reuse an existing FeatureCalculationInput, as stored in a least-recently used cache, and without invalidating it.

If no existing input is already stored, create a new one.

Author:

Owen Feehan

Constructor Summary

Constructors

Constructor	Description
CacheAndReuseStrategy(CacheCreator cacheCreator)	Create with a particular CacheCreator.

Method Summary

Modifier and Type	Method	Description
FeatureCalculationInput<T>	createOrReuse(T input)	Find or create a FeatureCalculationInput to associate with input.
LRUCache<T,FeatureCalculationInput<T>>	getCache()	The cache mapping a particular input to a corresponding FeatureCalculationInput.

Methods inherited from class java.lang.Object

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

Constructor Details

CacheAndReuseStrategy

public CacheAndReuseStrategy(CacheCreator cacheCreator)

Create with a particular CacheCreator.

Parameters:

cacheCreator - the cache-creator.

Method Details

createOrReuse

public FeatureCalculationInput<T> createOrReuse(T input)
                                         throws OperationFailedException

Description copied from interface: ReplaceStrategy

Find or create a FeatureCalculationInput to associate with input.

Specified by:

createOrReuse in interface ReplaceStrategy<T extends FeatureInput>

Parameters:

input - the input that a FeatureCalculationInput will be associated with.

Returns:

the FeatureCalculationInput, either newly created, or reused from a previous call.

Throws:

OperationFailedException - if an error-state emerge

getCache

public LRUCache<T,FeatureCalculationInput<T>> getCache()

The cache mapping a particular input to a corresponding FeatureCalculationInput.