org.jmlspecs.jmlunit.strategies
Class LongNonNegativeIteratorDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.LongAbstractIterator
      org.jmlspecs.jmlunit.strategies.LongAbstractFilteringIteratorDecorator
          org.jmlspecs.jmlunit.strategies.LongNonNegativeIteratorDecorator

All Implemented Interfaces:

Cloneable, IndefiniteIterator, LongIterator

public class LongNonNegativeIteratorDecorator

extends LongAbstractFilteringIteratorDecorator

An indefinite iterator that filters out negative test data.

Author:

Gary T. Leavens

Class Specifications

Specifications inherited from class LongAbstractFilteringIteratorDecorator

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.Long(this.getLong()).equals(new java.lang.Long(this.rawElems.getLong())));

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.LongAbstractFilteringIteratorDecorator

dented

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary

 

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

rawElems

 

Constructor Summary

LongNonNegativeIteratorDecorator(LongIterator iter)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

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

 

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

advance, atEnd, clone, getLong, initialize, toString

 

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

get

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

LongNonNegativeIteratorDecorator

public LongNonNegativeIteratorDecorator(LongIterator iter)

Specifications:

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

approve

public boolean approve(long 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(long elem) in class LongAbstractFilteringIteratorDecorator:
       pure

public normal_behavior
assignable \nothing;