Package org.anchoranalysis.plugin.image.feature.object.calculation.delegate

Class CalculateInputFromDelegate<S,T extends FeatureInput,U>

Object

CalculationPart<S,T>

CalculateInputFromDelegate<S,T,U>

Type Parameters:

S - final-type of CalculationPart.

T - feature input-type as input to cached-calculations.

U - delegate-type of CalculationPart.

All Implemented Interfaces:

ResettableCalculation

Direct Known Subclasses:

CalculateInputFromDelegateOption, CalculateIntersecting

public abstract class CalculateInputFromDelegate<S,T extends FeatureInput,U>
extends CalculationPart<S,T>

A base class for CalculationParts that derive from an existing "delegate" calculation.

These types of calculations involve two steps:

• Calculating from an existing CalculationPart.
• Applying a transform to generate parameters.

Author:

Owen Feehan

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CalculateInputFromDelegate(ResolvedPart<U,T> delegate)	Creates a new CalculateInputFromDelegate instance.
protected	CalculateInputFromDelegate(CalculationPart<U,T> delegate, CalculationPartResolver<T> cache)	Creates a new CalculateInputFromDelegate.

Method Summary

Modifier and Type	Method	Description
protected boolean	canEqual(Object other)
protected abstract S	deriveFromDelegate(T input, U delegate)	Derives the result from the delegate calculation.
boolean	equals(Object o)
S	execute(T input)	This performs the actual calculation when needed.
protected ResolvedPart<U,T>	getDelegate()	Gets the delegate ResolvedPart.
int	hashCode()

Methods inherited from class org.anchoranalysis.feature.calculate.part.CalculationPart

getOrCalculate, hasCachedResult, invalidate

Methods inherited from class java.lang.Object

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

Constructor Details

CalculateInputFromDelegate

protected CalculateInputFromDelegate(CalculationPart<U,T> delegate,
 CalculationPartResolver<T> cache)

Creates a new CalculateInputFromDelegate.

Parameters:

delegate - the delegate CalculationPart

cache - the CalculationPartResolver to use for caching

CalculateInputFromDelegate

protected CalculateInputFromDelegate(ResolvedPart<U,T> delegate)

Creates a new CalculateInputFromDelegate instance.

Parameters:

delegate - The resolved part for the delegate calculation.

Method Details

execute

public S execute(T input)
          throws FeatureCalculationException

Description copied from class: CalculationPart

This performs the actual calculation when needed. It should only be called once, until CalculationPart.invalidate() is called.

Specified by:

execute in class CalculationPart<S,T extends FeatureInput>

Parameters:

input - the input to the calculation.

Returns:

the result of the calculation.

Throws:

FeatureCalculationException - if the calculation cannot be successfully completed.

deriveFromDelegate

protected abstract S deriveFromDelegate(T input,
 U delegate)

Derives the result from the delegate calculation.

Parameters:

input - the input for the calculation

delegate - the result of the delegate calculation

Returns:

the derived result

getDelegate

protected ResolvedPart<U,T> getDelegate()

Gets the delegate ResolvedPart.

Returns:

the delegate ResolvedPart

equals

public boolean equals(Object o)

Specified by:

equals in class CalculationPart<S,T extends FeatureInput>

canEqual

protected boolean canEqual(Object other)

hashCode

public int hashCode()

Specified by:

hashCode in class CalculationPart<S,T extends FeatureInput>