org.jmlspecs.jmlunit.strategies
Class CompositeStrategy

java.lang.Object
  org.jmlspecs.jmlunit.strategies.CompositeStrategy

All Implemented Interfaces:

StrategyType

public class CompositeStrategy

extends Object

implements StrategyType

A composition of several strategies

Author:

Gary T. Leavens

See Also:

CompositeIterator

Class Specifications

public invariant \nonnullelements(this.strats);

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  StrategyType[]	strats           The indefinite iterators being concatenated.

 

Constructor Summary

CompositeStrategy(non_null StrategyType s)           Initialize this composite to return the iterator given by the given argument strategy.

CompositeStrategy(non_null StrategyType s1, non_null StrategyType s2)           Initialize this composite to return the iterator given by the given argument strategies, in order.

CompositeStrategy(non_null StrategyType[] strats)           Initialize this composite to return the iterator given by the given argument strategies, in order.

 

Model Method Summary

 

Model methods inherited from class java.lang.Object

hashValue

 

Method Summary
IndefiniteIterator	iterator()           Compute a fresh indefinite iterator, which can be used to provide test data of some reference type.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

strats

private StrategyType[] strats

The indefinite iterators being concatenated.

Specifications: spec_public non_null
is in groups: objectState
maps strats[*].objectState \into objectState

CompositeStrategy

public CompositeStrategy(non_null StrategyType s)

Initialize this composite to return the iterator given by the given argument strategy.

Specifications:

assignable strats;

CompositeStrategy

public CompositeStrategy(non_null StrategyType s1,
                         non_null StrategyType s2)

Initialize this composite to return the iterator given by the given argument strategies, in order.

Specifications:

assignable strats;

CompositeStrategy

public CompositeStrategy(non_null StrategyType[] strats)

Initialize this composite to return the iterator given by the given argument strategies, in order.

Specifications:

requires \nonnullelements(strats);
assignable this.strats;
ensures java.util.Arrays.equals(this.strats,strats);

iterator

public IndefiniteIterator iterator()

Description copied from interface: StrategyType

Compute a fresh indefinite iterator, which can be used to provide test data of some reference type. The indefinite iterator 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).

Specified by:

iterator in interface StrategyType

Specifications: non_null

Specifications inherited from overridden method in interface StrategyType:
       non_null

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