org.jmlspecs.jmlunit.strategies
Class ByteAbstractFilteringStrategyDecorator

java.lang.Object
  org.jmlspecs.jmlunit.strategies.ByteAbstractStrategy
      org.jmlspecs.jmlunit.strategies.ByteAbstractFilteringStrategyDecorator

All Implemented Interfaces:

ByteStrategyType, StrategyType

Direct Known Subclasses:

ByteNonNegativeStrategyDecorator

public abstract class ByteAbstractFilteringStrategyDecorator

extends ByteAbstractStrategy

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  ByteStrategyType	rawData           The test data

 

Constructor Summary

ByteAbstractFilteringStrategyDecorator(ByteStrategyType strat)

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

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

 

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

iterator

 

Methods inherited from class java.lang.Object

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

 

Field Detail

rawData

private final ByteStrategyType rawData

The test data

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

ByteAbstractFilteringStrategyDecorator

public ByteAbstractFilteringStrategyDecorator(ByteStrategyType strat)

Specifications:

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

byteIterator

public ByteIterator byteIterator()

Description copied from interface: ByteStrategyType

Compute a fresh ByteIterator, which can be used to provide test data of type byte. The ByteIterator 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 ByteStrategyType:

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

approve

public abstract boolean approve(byte elem)

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

Specifications: pure

public normal_behavior
assignable \nothing;