org.jmlspecs.jmlunit.strategies
Class NonNullIteratorDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.AbstractFilteringIteratorDecorator
      org.jmlspecs.jmlunit.strategies.NonNullIteratorDecorator

All Implemented Interfaces:

Cloneable, IndefiniteIterator

public class NonNullIteratorDecorator

extends AbstractFilteringIteratorDecorator

An indefinite iterator that filters out null's that would be returned otherwise.

Author:

Gary T. Leavens

Class Specifications

Specifications inherited from class AbstractFilteringIteratorDecorator

public invariant !this.dented ==> (this.atEnd() <==> this.rawElems.atEnd());

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.AbstractFilteringIteratorDecorator

dented

 

Ghost fields inherited from class java.lang.Object

objectTimesFinalized, owner

 

Field Summary

 

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

rawElems

 

Constructor Summary

NonNullIteratorDecorator(IndefiniteIterator iter)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
boolean	approve(nullable Object elem)

 

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

advance, atEnd, clone, get, initialize, toString

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

NonNullIteratorDecorator

public NonNullIteratorDecorator(IndefiniteIterator iter)

Specifications:

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

approve

public boolean approve(nullable Object elem)

Description copied from class: AbstractFilteringIteratorDecorator

Return true if the element is to be returned by the get() method.

Specifications: pure

Specifications inherited from overridden method approve(Object elem) in class AbstractFilteringIteratorDecorator:
       pure

public normal_behavior
assignable \nothing;