Class DoubleAbstractFilteringStrategyDecorator

  extended byorg.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy
      extended byorg.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringStrategyDecorator
All Implemented Interfaces:
DoubleStrategyType, StrategyType
Direct Known Subclasses:

public abstract class DoubleAbstractFilteringStrategyDecorator
extends DoubleAbstractStrategy

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  DoubleStrategyType rawData
          The test data
Constructor Summary
DoubleAbstractFilteringStrategyDecorator(DoubleStrategyType strat)
Model Method Summary
Model methods inherited from class java.lang.Object
Method Summary
abstract  boolean approve(double elem)
          Return true if the element is to be returned by the getDouble() method.
 DoubleIterator doubleIterator()
          Compute a fresh DoubleIterator, which can be used to provide test data of type double.
Methods inherited from class org.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail


private final DoubleStrategyType rawData
The test data

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


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


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


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