April 2004
Intermediate to advanced
520 pages
10h 10m
English
Content preview from Software Architecture Design Patterns in Java
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13 PROTOTYPE
This pattern was previously described in GoF95.
DESCRIPTION
As discussed in earlier chapters, both the Factory Method and the Abstract Factory patterns allow a system to be independent of the object creation process. In other words, these patterns enable a client object to create an instance of an appropriate class by invoking a designated method without having to specify the exact concrete class to be instantiated. While addressing the same problem as the Factory Method and Abstract Factory patterns, the Prototype pattern offers a different, more flexible way of achieveing the same result.
Other uses of the Prototype pattern include:
- When a client needs to create a set of objects that are alike or differ from each other only ...