JML

org.jmlspecs.jmlunit.strategies
Class NewObjectAbstractExtensibleStrategyDecorator

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.NewObjectAbstractExtensibleStrategyDecorator
All Implemented Interfaces:
StrategyType
Direct Known Subclasses:
CollectionStrategy, JMLCollectionStrategy, ObjectStrategy

public abstract class NewObjectAbstractExtensibleStrategyDecorator
extends Object
implements StrategyType

A decorator for strategies that allows for easy extension in the "new object" style 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 make(int) method; that method provides the additional data for testing.

Author:
Gary T. Leavens

Field Summary
private  StrategyType addedData
          The added data, returned after the default data in the iterations.
private  StrategyType defaultData
          The default data, returned first in the iterations.
 
Constructor Summary
NewObjectAbstractExtensibleStrategyDecorator(StrategyType strat)
           
 
Method Summary
 IndefiniteIterator iterator()
          Compute a fresh indefinite iterator, which can be used to provide test data of some reference type.
protected  Object make(int n)
          Return the nth test data item.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

defaultData

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


addedData

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

Constructor Detail

NewObjectAbstractExtensibleStrategyDecorator

public NewObjectAbstractExtensibleStrategyDecorator(StrategyType strat)
Method Detail

make

protected Object make(int n)
Return the nth test data item. The default implementation of this method provides no data. To provide additional test data, you should override this method, without making a super call to it.


iterator

public IndefiniteIterator iterator()
Description copied from interface: StrategyType
Compute a fresh indefinite iterator, which can be used to provide test data of some reference type. The indefinite iterator 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).

Specified by:
iterator in interface StrategyType

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.