org.jmlspecs.jmlunit.strategies
Class DoubleExtensibleStrategy

java.lang.Object
  org.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy
      org.jmlspecs.jmlunit.strategies.DoubleExtensibleStrategy

All Implemented Interfaces:

DoubleStrategyType, StrategyType

Direct Known Subclasses:

DoubleExtensibleStrategyDecorator.DoubleExtensibleStrategyDecorator$1, DoubleStrategy

public abstract class DoubleExtensibleStrategy

extends DoubleAbstractStrategy

Common code for extensible strategies for providing test data of type double.

This type provides an extension mechanism that is easier to use than a composite, wherein subclasses of subclasses can override the addData() method to provide additional data for testing.

Author:

Gary T. Leavens

Class Specifications

Specifications inherited from class Object

represents objectState <- org.jmlspecs.lang.JMLDataGroup.IT; public represents _getClass <- \typeof(this);

Model Field Summary

 

Model fields inherited from class java.lang.Object

_getClass, objectState, theString

 

Ghost Field Summary

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary
private  double[]	data           The data to return in the iterations

 

Constructor Summary

DoubleExtensibleStrategy()

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
protected  double[]	addData()           Subclasses can override this to make simple extensions to the data used.
protected abstract  double[]	defaultData()           Create and return the default data for the iterations.
DoubleIterator	doubleIterator()           Compute a fresh DoubleIterator, which can be used to provide test data of type double.
protected  double[]	getData()           Create and return the data for the iterations.

 

Methods inherited from class org.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy

iterator

 

Methods inherited from class java.lang.Object

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

 

Field Detail

data

private double[] data

The data to return in the iterations

Specifications: nullable
is in groups: objectState

DoubleExtensibleStrategy

public DoubleExtensibleStrategy()

doubleIterator

public DoubleIterator doubleIterator()

Description copied from interface: DoubleStrategyType

Compute a fresh DoubleIterator, which can be used to provide test data of type double. The DoubleIterator returned should be freshly created. Usually it should not be at its end. However, in rare cases it might make sense to have an empty iterator be computed (e.g., by filtering).

Specifications inherited from overridden method in interface DoubleStrategyType:

assignable objectState;
ensures \fresh(\result );
ensures_redundantly \result != null;

getData

protected double[] getData()

Create and return the data for the iterations. This is should only be called once for this object.

Specifications:

protected normal_behavior
assignable objectState;
ensures \result != null;

defaultData

protected abstract double[] defaultData()

Create and return the default data for the iterations. This is should only be called once for this object.

Specifications:

protected normal_behavior
assignable objectState;
ensures \result != null;

addData

protected double[] addData()

Subclasses can override this to make simple extensions to the data used.

Specifications:

protected normal_behavior
assignable objectState;
ensures \result != null;