Names of design patterns appear in small capitals: e.g., ADAPTER. Page numbers in bold indicate the definition of a term. Numbers in italics indicate a diagram for the term. Letters after a diagram's page number indicate the kind of diagram: a "c" denotes a class diagram, an "i" denotes an interaction diagram, and an "o" denotes an object diagram. For example, 88co means that a class and object diagram appears on page 88.

R

RApp

use of Strategy 323

RealSubject

participant of PROXY 209co, 210

Receiver

participant of COMMAND 236, 236c, 237i, 238

receiver 361

decoupling from sender 346

implicit 224

Rect 374

Rectangle 20, 20c

recursive composition 36, see also Composite

iteration over 262

of document structure 36

of graphic elements 163

of part-whole structures 164

redesign, causes of 24

redo, see undo/redo

refactoring 326, 353

reference counting 210

RefinedAbstraction

participant of BRIDGE 153c, 154

regular expression 243

representing in Smalltalk 248

RegularExpression 244c

remote proxy, see proxy, remote

RepetitionExpression 244co, 343

implemented in Smalltalk 249

request 11, 361

automatic forwarding of 229

encapsulation of 59, see also COMMAND

guaranteed receipt of 226

representing 227

sequencing 234

Responder 232

reuse

black-box 19, 354, 359

by composition 19

by parameterized types 21

by subclassing 19

code 26

designing for 24-25

frameworks 26

internal 25

maximizing 23

of implementation 18

toolkits 26

white-box 19, 354, 362

Rich Text Format 97

robust iterator, see iterator, robust

Room 82c, 83

RTF, see Rich Text Format

RTFReader 97, 97c

RTL Smalltalk compiler

use of Composite 172

use of Strategy 323