org.jmlspecs.jmlunit.strategies
Class DoubleAbstractFilteringStrategyDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.DoubleAbstractStrategy
      org.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringStrategyDecorator

All Implemented Interfaces:

DoubleStrategyType, StrategyType

Direct Known Subclasses:

DoubleNonNegativeStrategyDecorator

public abstract class DoubleAbstractFilteringStrategyDecorator

extends DoubleAbstractStrategy

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

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
[spec_public] private  DoubleStrategyType	rawData           The test data

 

Constructor Summary

DoubleAbstractFilteringStrategyDecorator(DoubleStrategyType strat)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

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

iterator

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

rawData

private final DoubleStrategyType rawData

The test data

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

DoubleAbstractFilteringStrategyDecorator

public DoubleAbstractFilteringStrategyDecorator(DoubleStrategyType strat)

Specifications:

public normal_behavior
requires strat != null;
assignable rawData;
ensures this.rawData == strat;

doubleIterator

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;

approve

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;