Structural Patterns ........................................................................................................ 133
Adapter ..................................................................................................................... 135
Intent..................................................................................................................... 135
Also Known As ................................................................................................. 135
Motivation ......................................................................................................... 135
Applicability ...................................................................................................... 136
Structure ............................................................................................................ 136
Participants ........................................................................................................ 137
Collaborations.................................................................................................... 137
Consequences .................................................................................................... 137
Implementation.................................................................................................. 139
Sample Code...................................................................................................... 141
Known Uses....................................................................................................... 144
Related Patterns ................................................................................................. 145
Bridge ....................................................................................................................... 146
Intent..................................................................................................................... 146
Also Known As ................................................................................................. 146
Motivation ......................................................................................................... 146
Applicability ...................................................................................................... 147
Structure ............................................................................................................ 148
Participants ........................................................................................................ 148
Collaborations.................................................................................................... 149
Consequences .................................................................................................... 149
Implementation.................................................................................................. 149
Sample Code...................................................................................................... 150
Known Uses....................................................................................................... 154
Related Patterns ................................................................................................. 155
Composite................................................................................................................. 156
Intent..................................................................................................................... 156
Motivation ......................................................................................................... 156
Applicability ...................................................................................................... 157
Structure ............................................................................................................ 157
Participants ........................................................................................................ 158
Collaborations.................................................................................................... 158
Consequences .................................................................................................... 158
Implementation.................................................................................................. 159
Sample Code...................................................................................................... 162
Known Uses....................................................................................................... 164
Related Patterns ................................................................................................. 165
Decorator .................................................................................................................. 166
Intent..................................................................................................................... 166
Also Known As ................................................................................................. 166
Motivation ......................................................................................................... 166
Applicability ...................................................................................................... 167
4
