Smalltalk and Object Orientation: an Introduction - Free

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Array OrderedCollection SortedCollection Dictionary Like an array in Pascal, has a fixed size (which can be grown) and accessed by explicit position references. A bit like a linked list in Pascal or C. Elements are added to specific locations specified either as first, last or relative to another object. A collection whose order is determined by a sort block. This block is a piece of code which returns true or false depending upon the test performed. Rather like a hash table. Objects are stored with a key and accessed by a key. Dictionaries are therefore a set of key -> value associations Elements in collections are in general accessed by the at: and added by the at:put: or add: messages. It is possible to iterate over the elements of a collection using the do: construct. 290
Bibliography [Acron and Walden 1992] T. L. Acron and S. H. Walden, SMART: Support Management Automated Reasoning Technology for Compaq Customer Service, pp 3 - 17 , Innovative Applications of Artificial Intelligence 4, Ed. A. Carlisle Scott and Philip Klahr, (1992). [Alexander et al 1977] C. Alexander, S. Ishikawa and M. Silverstein with M. Jacobson, I. Fiksd ahl- King and S. Angel, A Pattern Language, Oxford University Press, 1977. [Alexander 1979] C. Alexander, The Timeless Way of Building, Oxford university Press, 1979. [Barbey and Strohmeier 1994] Stephane Barbey and Alfred Strohmeier, The Problematics of Te sting Object-Oriented Software, in SQM’94 Second Conference on Software Quality Management, Vol 2, M. Ross, C. A. Brebbia, G. Staples and J. Stapleton (eds), pages 411-426, July 26-28, 1994. [Barbey, Amman and Strohmeier 1994] Stephane Barbey, Manuel M. Ammann and Alfred Strohmeier, Open Issues in Testing Object-Oriented Software, in ECSQ’94, European Conference on Software Quality, Basil Switzerland, Oct. 17-20, 1994. [Beck 1994] K. Beck, Simple Smalltalk testing, The Smalltalk Report, Vol 4, No. 2, pp 1 6-18, October 1994. [Beck and Johnson 1994] K. Beck and R. Johnson, Patterns Generate Architectures, Proc. Eccop’94, pp. 139-149, 1994. [Ben-Natan 1995] R. Ben -Natan, CORBA: A Guide to Common Object Request Broker Architetcure , McGraw-Hill, ISBN 0-07-005427, 1995. [Beizer 1990] B. Beizer, Software Testing Techniques, Van Nostrand Reinhold, New York, 1990. [Binder 1994] Robert V. Binder, Guest Editor, Special Issue of Communications of the ACM, Object Oriented Software Testing, Vol. 37, No 9, 1994. ACM Press. [Binder 1994b] Robert V. Binder, Design for Testability in Object-Oriented Systems, in Special Issue of Communications of the ACM, Object Oriented Software Testing, Vol. 37, No 9, pp. 87-101, 1994. [Birrer and Eggenschmiler 1993] Andreas Birrer and Thom as Eggenschwiler, “Frameworks in the Financial Engineering Domain: An Experience Report:, ECOOP’93, pp 21-35. [Boehm 1988] B. W. Boehm, A spiral model of software development and enhancement, IEEE Computer, pp 61-72, May 1988. [Booch et al 1996] G. Booch, I. Jacobson and J. Rumbaugh, The Unified Modeling Language for Object Oriented Development , Documentation Set, Version 0.91 Addendum, UML Update, Rational Software Corporation, (available on the web http://www.rational.com/ot/uml.html), 1996. [Booch 1996] Grady Booch, Object Solutions: Managing the Object -Oriented Project, Pub. Addison - Wesley, Menlo Park, ISBN 0-8053-0594-7, (1996). [Booch and Rumbaugh 1995] Grady Booch and James Rumbaugh , The Unified Method Documentation Set, Version 0.8, Rational Softwar e Corporation, (available on the web http://www.rational.com/ot/uml.html), 1995. [Booch 1994] Grady Booch, Object-Oriented Analysis and Design with Applications , 2nd Edition, Benjamin Cummings, Redwood City, California, (1994). [Booch 1991] Grady Booch, Object-Oriented Design with Applications, Benjamin Cummings, (1991). [Booch 1987] Grady Booch, Software Components with Ada , Benjamin Cummings, Menlo Park, California, 1987. [Booch 1986] Grady Booch, Object Oriented Development, IEEE Transactions on Software Engineering, 12 (2), pp 211-221, February 1986. [Brooks 1987] Fred Brooks, No Silver Bullet: Essence and Accidents of Software Engineering, IEEE Computer, April 1987. [Brown 1989] A. L. Brown, Persistent Object Stores, Ph.D. Thesis, University of St. Andrews, 1989. [Budd 1991] T. Budd, An Introduction to Object Oriented Programming , Pub. Addison-Wesley, ISBN 0-201-54709-0, (1991). [Budinsky et al 1996] F. J. Budinsky, M. A. Finnie, J. M. Vlissides and P. S. Yu, Automatic code generation from design patterns, IBM Systems Journal, Vol. 35, No. 2, 1996. [Coad and Yourdon 1991] P. Coad and E. Yourdon, Object-Oriented Analysis , Yourdon Press, Englewood Cliffs, NJ, (1991) 291
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Smalltalk and Object Orientation: A
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Chapter 7: Smalltalk Constructs Thi
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The user interface construction fac
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Preface 1. INTRODUCTION TO OBJECT O
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12.5 A CLASS SIDE METHOD...........
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27.3 VISUALWORKS WINDOW PAINTING TO
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Part One Introduction to Object Ori
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interfaces between different parts
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een to ease the transition from one
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encapsulation. Attempting to introd
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is a controversial subject which is
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will become second nature to many o
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or return something. It has since b
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defining the behavior of different
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In time most developers start to ac
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2.4.3.4 Smalltalk environments are
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3. Constructing an Object Oriented
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Wash wipe switch Wiper motor Relay
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Point 2 above is more complicated.
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services working? working? working?
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Part Two The Smalltalk Language 42
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other systems. As the browsers, ins
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VisualAge (a version of Smalltalk w
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4.5.2 The VisualWorks Launcher and
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Class categories. These are group s
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5. A Little Smalltalk 5.1 Introduct
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Notifiers can be displayed under a
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These concepts of messages, receive
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Select the “Debug” option. This
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6. Smalltalk Building Blocks 6.1 In
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6.3.1 Class definitions In Smalltal
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Object Class1 Class 2 method search
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“Now calculate y “ y := x * 23.
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7. Smalltalk Constructs 7.1 Introdu
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They are more efficient for storage
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7.5.3 true, false and nil variables
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anArray at: 1 max: 10. This will tr
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Figure 8.1: Defining a new class 8.
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this convention at the moment, howe
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9. Control and Iteration 9.1 Introd
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9.3.3 Block temporary variables Blo
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The brackets round the 1 to: 10 are
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OrderedCollection class (respective
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holding other objects. Typically, c
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| temp | temp := Set new. temp add:
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Next we will define a message proto
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11. Further Collection Classes 11.1
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for (i = 0; i
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x inspect. This has some similariti
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11.9.3 The reject: message The reje
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• asSortedCollection. This create
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Figure 12.2: The Organizer class de
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12.6 The private-updating protocol
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do: [:item | Transcript show: item
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13. Streams and Files 13.1 Introduc
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Notice that in this example we used
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to reconstruct the data into object
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1. The ability to save the current
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14.3 The class Date Class Date, a s
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aCharacter isAlphabetic. aCharacter
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Breakpoints may be placed in a me t
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If the file does not exist you will
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Figure 15.4: Creating a project To
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Part Three Object Oriented Design 1
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16. Object Oriented Analysis and De
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devolved amongst the objects). This
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driving force behind the whole of t
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17. The Unified Modeling Language 1
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Deployment diagrams . Deployment di
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Window abstract +size : Area = (10,
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Micro Computer 1.. * Monitor System
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connectedTo * Lamp * Weight Sensor
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18. UML: Dynamic Modeling And Deplo
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edisplay() Controller window A Wind
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18.2.3.1 A start point A start poin
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etween nodes and their stereotype.
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OMT is a prescriptive method, it pr
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confirming the users’ needs, thei
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19.3.2.2 Prepare a data dictionary
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car, truck and bus under a supercla
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20.2.1.3 Prepare sequence and colla
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20.2.2.5 Specify optimization crite
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are therefore concurrent and can be
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20.3.2.3 Design optimization The an
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21. Frameworks and Patterns for Obj
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As the framework takes shape you sh
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about a set of classes, than to att
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instanceVariableNames: '' classVari
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21.5.5 Running the editor You have
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Part Four Testing and Style 181
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made worse, because the symbol held
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22.3.2 Incremental testing Incremen
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control the execution of the method
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22.7.2 The Perform: message The per
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From the scenario that a person mig
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23.4 Self testing An approach, sugg
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24. Smalltalk Style Guidelines 24.1
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24.2.4 Adding variables to system c
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should use a dictionary to hold the
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• A method should only send messa
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Table 24.2: Class message categorie
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25. The Perform and Dependency Mech
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• Inheritance (class to class rel
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You can find the methods which impl
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These messages are sent automatical
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26. The Model-View-Controller Archi
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and wit hdrawals and requests for t
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Figure 26.5: Part of the Controller
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model 4. update 1. balance (view) 0
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displayed. The second component add
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27. Graphical User Interface Constr
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27.3.1 Palette The Palette tool pro
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uild a running user interface from
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names) and the actions for buttons
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Edit button, then the user interfac
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27.11 Visual reuse The aim of visua
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Figure 27.17: Defining the parent c
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important, as these facilities hand
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Page 284 and 285: 34. Appendix: The Smalltalk Languag
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