JML

org.jmlspecs.jmlunit.strategies
Class NewObjectAbstractStrategy

java.lang.Object
  extended byorg.jmlspecs.jmlunit.strategies.NewObjectAbstractStrategy
All Implemented Interfaces:
StrategyType
Direct Known Subclasses:
Account_JML_TestData.Account_JML_TestData$1, Account_JML_TestData.Account_JML_TestData$3, BlankReader_JML_TestData.BlankReader_JML_TestData$1, BoundedStackInterface_JML_TestData.BoundedStackInterface_JML_TestData$2, CollectionStrategy.CollectionStrategy$1, Complex_JML_TestData.Complex_JML_TestData$1, Complex_JML_TestData.Complex_JML_TestData$2, Counter_JML_TestData.Counter_JML_TestData$1, IntegerSetAsHashSet_JML_TestData.IntegerSetAsHashSet_JML_TestData$2, IntegerSetAsTree_JML_TestData.IntegerSetAsTree_JML_TestData$2, JMLChar_JML_TestData.JMLChar_JML_TestData$3, JMLValueObjectPair_JML_TestData.JMLValueObjectPair_JML_TestData$2, LinearSearch_JML_TestData.LinearSearch_JML_TestData$1, ListIterator_JML_TestData.ListIterator_JML_TestData$2, Meter_JML_TestData.Meter_JML_TestData$1, NewObjectAbstractStrategyTest.SingletonNOAS, NewObjectAbstractStrategyTest.SmallestNOAS, OneWayNode_JML_TestData.OneWayNode_JML_TestData$1, Person_JML_TestData.Person_JML_TestData$1, PlusAccount_JML_TestData.PlusAccount_JML_TestData$1, PlusAccount_JML_TestData.PlusAccount_JML_TestData$3, Point2D_JML_TestData.Point2D_JML_TestData$1, PriorityQueue_JML_TestData.PriorityQueue_JML_TestData$1, Proof_JML_TestData.Proof_JML_TestData$3, SearchableDigraph_JML_TestData.SearchableDigraph_JML_TestData$2, TableImplementation_JML_TestData.TableImplementation_JML_TestData$3, TransposableDigraph_JML_TestData.TransposableDigraph_JML_TestData$1, TransposableNode_JML_TestData.TransposableNode_JML_TestData$2, TwoWayIterator_JML_TestData.TwoWayIterator_JML_TestData$1, TwoWayIterator_JML_TestData.TwoWayIterator_JML_TestData$1, TwoWayIterator_JML_TestData.TwoWayIterator_JML_TestData$2, TwoWayIterator_JML_TestData.TwoWayIterator_JML_TestData$2, TwoWayNode_JML_TestData.TwoWayNode_JML_TestData$1, UnboundedStackAsArrayList_JML_TestData.UnboundedStackAsArrayList_JML_TestData$1

public abstract class NewObjectAbstractStrategy
extends Object
implements StrategyType

A strategy that provides test data by creating (in general) the objects each time the make() method is called for a particular argument. The idea is to prevent aliasing without cloning.

Hoewver, If you want to have aliasing, arrange it so that the same object is returned multiple times by make().

This strategy provides null by default, so users never need to return null in the body of the #make() method they provide.

Author:
Gary T. Leavens

Constructor Summary
NewObjectAbstractStrategy()
           
 
Method Summary
 IndefiniteIterator iterator()
          Compute a fresh indefinite iterator, which can be used to provide test data of some reference type.
protected abstract  Object make(int n)
          Return the nth test data item.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

NewObjectAbstractStrategy

public NewObjectAbstractStrategy()
Method Detail

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

make

protected abstract Object make(int n)
Return the nth test data item.


JML

JML is Copyright (C) 1998-2002 by Iowa State University and is distributed under the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This release depends on code from the MultiJava project and is based in part on the Kopi project Copyright (C) 1990-99 DMS Decision Management Systems Ges.m.b.H.