JML

org.jmlspecs.jmlunit.strategies
Class ByteExtensibleStrategyDecorator

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.ByteAbstractStrategy
      extended byorg.jmlspecs.jmlunit.strategies.ByteExtensibleStrategyDecorator
All Implemented Interfaces:
ByteStrategyType, StrategyType
Direct Known Subclasses:
ByteBigStrategy

public class ByteExtensibleStrategyDecorator
extends ByteAbstractStrategy

A decorator for strategies (which provide test data of type type byte) 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  ByteStrategyType addedData
          The added data, returned after the default data in the iterations.
private  ByteStrategyType defaultData
          The default data, returned first in the iterations.
 
Constructor Summary
ByteExtensibleStrategyDecorator(ByteStrategyType strat)
           
 
Method Summary
protected  byte[] addData()
          Subclasses can override this to make simple extensions to the data used.
 ByteIterator byteIterator()
          Compute a fresh ByteIterator, which can be used to provide test data of type byte.
 
Methods inherited from class org.jmlspecs.jmlunit.strategies.ByteAbstractStrategy
iterator
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

defaultData

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


addedData

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

Constructor Detail

ByteExtensibleStrategyDecorator

public ByteExtensibleStrategyDecorator(ByteStrategyType strat)
Method Detail

byteIterator

public ByteIterator byteIterator()
Description copied from interface: ByteStrategyType
Compute a fresh ByteIterator, which can be used to provide test data of type byte. The ByteIterator 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 byte[] 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.