Index_O

O

object class, 124

Object type, 233

object-oriented applications, 24 25, 191

objects

collaboration, 121

collection objects as DTOs, 233

lifetime, 259

limiting dependencies between, 131

making instance globally available, 257

See also DTO; remote objects

observer, 121 130

affecting state change, 128

benefits and liabilities in .NET, 145

design patterns approach, 134

diagram of basic structure, 122

implementing in .NET, 131 145

and intercepting filters, 98

in .NET, 141 143

testing considerations in .NET, 143

variable numbers, 129

vs. intercepting filters, 98

See also modified observer

Observer interface, 125, 134 135, 137

Observer.cs, 135

OLAP, 24

OLTP

described, 24

diagrammed, 25

OnAuthenticate member function, 105

OnExecute abstract method, 80 81

online analytical processing See OLAP

online transaction processing See OLTP

open standards, 272

open systems interconnection See OSI

operational management, 165

operational requirements, 168 169

order dependency, 101, 108

organization of book, xvi xvii

OSI, 184, 269

OutputCache API, 117

@ OutputCache directive, 117 118