Class AbstractFilteringStrategyDecorator

  extended byorg.jmlspecs.jmlunit.strategies.AbstractFilteringStrategyDecorator
All Implemented Interfaces:
Direct Known Subclasses:

public abstract class AbstractFilteringStrategyDecorator
extends Object
implements StrategyType

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  StrategyType rawData
          The test data
Constructor Summary
AbstractFilteringStrategyDecorator(StrategyType strat)
Model Method Summary
Model methods inherited from class java.lang.Object
Method Summary
abstract  boolean approve(Object elem)
          Return true if the element is to be returned by the get() method.
 IndefiniteIterator iterator()
          Compute a fresh indefinite iterator, which can be used to provide test data of some reference type.
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


private final StrategyType rawData
The test data

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


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


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


public abstract boolean approve(Object elem)
Return true if the element is to be returned by the get() 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.