Package org.anchoranalysis.feature.session.replace

Interface ReplaceStrategy<T extends FeatureInput>

Type Parameters:

T - the feature input-type

All Known Implementing Classes:

AlwaysNew, CacheAndReuseStrategy, ReuseSingletonStrategy

public interface ReplaceStrategy<T extends FeatureInput>

Different strategies on associating a FeatureCalculationInput with a particular input.

A new FeatureCalculationInput may be created, or an existing one reused - with or without invalidating it.

Depending on the relationships that may exist between successive inputs that are calculated, particular caching strategies can be used to avoid repeating redundant calculation. This class provides an abstract interface for one aspect of that relationship.

Author:

Owen

Method Summary

Modifier and Type	Method	Description
FeatureCalculationInput<T>	createOrReuse(T input)	Find or create a FeatureCalculationInput to associate with input.

Method Details

createOrReuse

FeatureCalculationInput<T> createOrReuse(T input)
                                  throws OperationFailedException

Find or create a FeatureCalculationInput to associate with input.

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