org.jmlspecs.jmlunit.strategies
Class LongAbstractFilteringStrategyDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.LongAbstractStrategy
      org.jmlspecs.jmlunit.strategies.LongAbstractFilteringStrategyDecorator

All Implemented Interfaces:

LongStrategyType, StrategyType

Direct Known Subclasses:

LongNonNegativeStrategyDecorator

public abstract class LongAbstractFilteringStrategyDecorator

extends LongAbstractStrategy

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  LongStrategyType	rawData           The test data

 

Constructor Summary

LongAbstractFilteringStrategyDecorator(LongStrategyType strat)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
abstract  boolean	approve(long elem)           Return true if the element is to be returned by the getLong() method.
LongIterator	longIterator()           Compute a fresh LongIterator, which can be used to provide test data of type long.

 

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

iterator

 

Methods inherited from class java.lang.Object

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

 

Field Detail

rawData

private final LongStrategyType rawData

The test data

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

LongAbstractFilteringStrategyDecorator

public LongAbstractFilteringStrategyDecorator(LongStrategyType strat)

Specifications:

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

longIterator

public LongIterator longIterator()

Description copied from interface: LongStrategyType

Compute a fresh LongIterator, which can be used to provide test data of type long. The LongIterator 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 LongStrategyType:

assignable objectState;
ensures \fresh(\result );
ensures_redundantly \result != null;

approve

public abstract boolean approve(long elem)

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

Specifications: pure

public normal_behavior
assignable \nothing;