org.jmlspecs.jmlunit.strategies
Class IntNonNegativeIteratorDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.IntAbstractIterator
      org.jmlspecs.jmlunit.strategies.IntAbstractFilteringIteratorDecorator
          org.jmlspecs.jmlunit.strategies.IntNonNegativeIteratorDecorator

All Implemented Interfaces:

Cloneable, IndefiniteIterator, IntIterator

public class IntNonNegativeIteratorDecorator

extends IntAbstractFilteringIteratorDecorator

An indefinite iterator that filters out negative test data.

Author:

Gary T. Leavens

Class Specifications

Specifications inherited from class IntAbstractFilteringIteratorDecorator

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.Integer(this.getInt()).equals(new java.lang.Integer(this.rawElems.getInt())));

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.IntAbstractFilteringIteratorDecorator

dented

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary

 

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

rawElems

 

Constructor Summary

IntNonNegativeIteratorDecorator(IntIterator iter)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

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

 

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

advance, atEnd, clone, getInt, initialize, toString

 

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

get

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

IntNonNegativeIteratorDecorator

public IntNonNegativeIteratorDecorator(IntIterator iter)

Specifications:

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

approve

public boolean approve(int elem)

Return true just when the argument is not negative.

Specifications: pure

     also

public normal_behavior
assignable \nothing;
ensures \result <==> !(elem < 0);

Specifications inherited from overridden method approve(int elem) in class IntAbstractFilteringIteratorDecorator:
       pure

public normal_behavior
assignable \nothing;