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Download as PDF; Printable version; ... The memento pattern is a software design pattern that exposes the private internal state of an object. One example of how this ...
Download as PDF; Printable version; In other projects ... Pages in category "Articles with example Java code" ... Memento pattern; Method chaining;
The active object design pattern decouples method execution from method invocation for objects that each reside in their own thread of control. [1] The goal is to introduce concurrency, by using asynchronous method invocation and a scheduler for handling requests. [2] The pattern consists of six elements: [3]
In software engineering, concurrency patterns are those types of design patterns that deal with the multi-threaded programming paradigm. Examples of this class of patterns include: Active object [1] [2] Balking pattern; Barrier; Double-checked locking; Guarded suspension; Leaders/followers pattern; Monitor Object; Nuclear reaction; Reactor ...
A chat room could use the mediator pattern, or a system where many ‘clients’ each receive a message each time one of the other clients performs an action (for chat rooms, this would be when each person sends a message). In reality using the mediator pattern for a chat room would only be practical when used with remoting.
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In object-oriented programming, the template method is one of the behavioral design patterns identified by Gamma et al. [1] in the book Design Patterns.The template method is a method in a superclass, usually an abstract superclass, and defines the skeleton of an operation in terms of a number of high-level steps.
The original form of the pattern, appearing in Pattern Languages of Program Design 3, [2] has data races, depending on the memory model in use, and it is hard to get right. Some consider it to be an anti-pattern. [3] There are valid forms of the pattern, including the use of the volatile keyword in Java and explicit memory barriers in C++. [4]