JML

org.jmlspecs.jmlunit.strategies
Class DoubleExtensibleStrategyDecorator

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy
      extended byorg.jmlspecs.jmlunit.strategies.DoubleExtensibleStrategyDecorator
All Implemented Interfaces:
DoubleStrategyType, StrategyType
Direct Known Subclasses:
DoubleBigStrategy

public class DoubleExtensibleStrategyDecorator
extends DoubleAbstractStrategy

A decorator for strategies (which provide test data of type type double) that allows for easy extension to the test data of the underlying strategy.

This type provides an extension mechanism that is easier to use than a composite. To extend the test data, make a subclass that overrides the addData() method; this method provides the additional data for testing.

Author:
Gary T. Leavens

Field Summary
private  DoubleStrategyType addedData
          The added data, returned after the default data in the iterations.
private  DoubleStrategyType defaultData
          The default data, returned first in the iterations.
 
Constructor Summary
DoubleExtensibleStrategyDecorator(DoubleStrategyType strat)
           
 
Method Summary
protected  double[] addData()
          Subclasses can override this to make simple extensions to the data used.
 DoubleIterator doubleIterator()
          Compute a fresh DoubleIterator, which can be used to provide test data of type double.
 
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

defaultData

private DoubleStrategyType defaultData
The default data, returned first in the iterations.


addedData

private DoubleStrategyType addedData
The added data, returned after the default data in the iterations.

Constructor Detail

DoubleExtensibleStrategyDecorator

public DoubleExtensibleStrategyDecorator(DoubleStrategyType strat)
Method Detail

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).


addData

protected double[] addData()
Subclasses can override this to make simple extensions to the data used. This should only be called once when the object is being constructed.


JML

JML is Copyright (C) 1998-2002 by Iowa State University and is distributed under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This release depends on code from the MultiJava project and is based in part on the Kopi project Copyright (C) 1990-99 DMS Decision Management Systems Ges.m.b.H.