14 docs tagged with "behavioral"

Patterns for communication between objects and assignment of responsibilities

Pass requests along a chain of handlers, each deciding to process or forward the request

Encapsulate a request as an object allowing you to parameterize clients with commands

Define a grammar and interpreter for a language to process structured text or commands

Access elements of a collection sequentially without exposing its underlying representation

Centralize complex communication logic between multiple objects in a mediator object

Capture and externalize an object's state without violating encapsulation

Provide an object as surrogate for null reference with neutral behavior

Define a one-to-many dependency where when one object changes state, all dependents are notified

Encapsulate business rules as queryable objects for flexible filtering and validation

Allow an object to alter its behavior when its internal state changes

Define a family of algorithms, encapsulate each, and make them interchangeable

Define the skeleton of an algorithm, deferring specific steps to subclasses

Represent an operation to be performed on elements of an object structure