 Behavorial Design Patterns
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This design
pattern is all about algorithms and assigning
object responsibilities. This design pattern
also helps design communications between
different classes and objects and their
interconnections. While behavorial-class
patterns use inheritance to distribute
behavior between classes, behavorial-object
patterns use object composition to perform
the same task.
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The Mediator Design Pattern is used to design
encapsulation for interaction among objects. It helps
design a loose coupling by preventing objects from
referring to each other directly. This allows to vary
their interactions independantly. |
| The Command Design Pattern helps to
encapsulate each request as an object. This helps in
queing or logging requests and helps perform difficult
operations |
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The Interpreter Design Pattern helps interpret
sentences in any given language, provided that the
grammar for the language is provided. |
| The Iterator Design Pattern is used to access elements
of an aggregated object sequentially without exposing its
representation. |
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The Chain of
Responsibility Design Pattern avoids tying the sender of
a request tightly to its receiver. It helps design chains
of receiving objects and pass the request along the chain
until an object handles the request. |
| The Memento Design Pattern helps design how
to capture an object's internal state so that an object
can be restored to that state later. |
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The Observer Design Pattern is used to design
and define a one-to-many relationship between objects so
that when one object changes state, all its dependants
are notified and updated automatically. |
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