JML

org.jmlspecs.jmlunit.strategies
Class CharExtensibleStrategy

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.CharAbstractStrategy
      extended byorg.jmlspecs.jmlunit.strategies.CharExtensibleStrategy
All Implemented Interfaces:
CharStrategyType, StrategyType
Direct Known Subclasses:
CharExtensibleStrategyDecorator.CharExtensibleStrategyDecorator$1, CharStrategy

public abstract class CharExtensibleStrategy
extends CharAbstractStrategy

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

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  char[] data
          The data to return in the iterations
 
Constructor Summary
CharExtensibleStrategy()
           
 
Model Method Summary
 
Model methods inherited from class java.lang.Object
hashValue
 
Method Summary
protected  char[] addData()
          Subclasses can override this to make simple extensions to the data used.
 CharIterator charIterator()
          Compute a fresh CharIterator, which can be used to provide test data of type char.
protected abstract  char[] defaultData()
          Create and return the default data for the iterations.
protected  char[] getData()
          Create and return the data for the iterations.
 
Methods inherited from class org.jmlspecs.jmlunit.strategies.CharAbstractStrategy
iterator
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

data

private char[] data
The data to return in the iterations

Specifications: nullable
is in groups: objectState
Constructor Detail

CharExtensibleStrategy

public CharExtensibleStrategy()
Method Detail

charIterator

public CharIterator charIterator()
Description copied from interface: CharStrategyType
Compute a fresh CharIterator, which can be used to provide test data of type char. The CharIterator 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 CharStrategyType:
assignable objectState;
ensures \fresh(\result );
ensures_redundantly \result != null;

getData

protected char[] 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 char[] 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 char[] addData()
Subclasses can override this to make simple extensions to the data used.

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

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.