org.jmlspecs.jmlunit.strategies
Class DoubleNonNegativeIteratorDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.DoubleAbstractIterator
      org.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringIteratorDecorator
          org.jmlspecs.jmlunit.strategies.DoubleNonNegativeIteratorDecorator

All Implemented Interfaces:

Cloneable, DoubleIterator, IndefiniteIterator

public class DoubleNonNegativeIteratorDecorator

extends DoubleAbstractFilteringIteratorDecorator

An indefinite iterator that filters out negative test data.

Author:

Gary T. Leavens

Class Specifications

Specifications inherited from class DoubleAbstractFilteringIteratorDecorator

public invariant !this.dented ==> (this.atEnd() <==> this.rawElems.atEnd()); public invariant !this.dented ==> (!this.atEnd() ==> this.get().equals(this.rawElems.get())); public invariant_redundantly !this.dented ==> (!this.atEnd() ==> new java.lang.Double(this.getDouble()).equals(new java.lang.Double(this.rawElems.getDouble())));

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 org.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringIteratorDecorator

dented

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary

 

Fields inherited from class org.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringIteratorDecorator

rawElems

 

Constructor Summary

DoubleNonNegativeIteratorDecorator(DoubleIterator iter)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
boolean	approve(double elem)           Return true just when the argument is not negative.

 

Methods inherited from class org.jmlspecs.jmlunit.strategies.DoubleAbstractFilteringIteratorDecorator

advance, atEnd, clone, getDouble, initialize, toString

 

Methods inherited from class org.jmlspecs.jmlunit.strategies.DoubleAbstractIterator

get

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

DoubleNonNegativeIteratorDecorator

public DoubleNonNegativeIteratorDecorator(DoubleIterator iter)

Specifications:

public normal_behavior
requires iter != null;
assignable rawElems, objectState;
ensures (* rawElems is a clone of iter *);

approve

public boolean approve(double elem)

Return true just when the argument is not negative.

Specifications: pure

     also

public normal_behavior
assignable \nothing;
ensures \result <==> !(elem < 0.0);

Specifications inherited from overridden method approve(double elem) in class DoubleAbstractFilteringIteratorDecorator:
       pure

public normal_behavior
assignable \nothing;