Class CharAbstractFilteringStrategyDecorator

  extended byorg.jmlspecs.jmlunit.strategies.CharAbstractStrategy
      extended byorg.jmlspecs.jmlunit.strategies.CharAbstractFilteringStrategyDecorator
All Implemented Interfaces:
CharStrategyType, StrategyType

public abstract class CharAbstractFilteringStrategyDecorator
extends CharAbstractStrategy

A decorator for strategies that filters out data that is not approved.

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
[spec_public] private  CharStrategyType rawData
          The test data
Constructor Summary
CharAbstractFilteringStrategyDecorator(CharStrategyType strat)
Model Method Summary
Model methods inherited from class java.lang.Object
Method Summary
abstract  boolean approve(char elem)
          Return true if the element is to be returned by the getChar() method.
 CharIterator charIterator()
          Compute a fresh CharIterator, which can be used to provide test data of type char.
Methods inherited from class org.jmlspecs.jmlunit.strategies.CharAbstractStrategy
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


private final CharStrategyType rawData
The test data

Specifications: spec_public non_null
is in groups: objectState
maps rawData.objectState \into objectState
Constructor Detail


public CharAbstractFilteringStrategyDecorator(CharStrategyType strat)
public normal_behavior
requires strat != null;
assignable rawData;
ensures this.rawData == strat;
Method Detail


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: non_null
Specifications inherited from overridden method in interface CharStrategyType:
assignable objectState;
ensures \fresh(\result );
ensures_redundantly \result != null;


public abstract boolean approve(char elem)
Return true if the element is to be returned by the getChar() method.

Specifications: pure
public normal_behavior
assignable \nothing;


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.