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In object oriented programming, the factory method pattern is a creational pattern that uses factory methods to deal with the problem of creating objects without having to specify their exact class. Rather than by calling a constructor, this is done by calling a factory method to create an object. Factory methods can either be specified in an ...
Builder pattern. The builder pattern is a design pattern designed to provide a flexible solution to various object creation problems in object-oriented programming. The intent of the builder design pattern is to separate the construction of a complex object from its representation. It is one of the Gang of Four design patterns .
A Java logging framework is a computer data logging package for the Java platform. This article covers general purpose logging frameworks. This article covers general purpose logging frameworks. Logging refers to the recording of activity by an application and is a common issue for development teams.
Bridge pattern. The bridge pattern is a design pattern used in software engineering that is meant to "decouple an abstraction from its implementation so that the two can vary independently", introduced by the Gang of Four. [1] The bridge uses encapsulation, aggregation, and can use inheritance to separate responsibilities into different classes .
Observer pattern. In software design and engineering, the observer pattern is a software design pattern in which an object, named the subject, maintains a list of its dependents, called observers, and notifies them automatically of any state changes, usually by calling one of their methods . It is often used for implementing distributed event ...
In Java 14, record classes were added to fight with this issue. To reduce the amount of boilerplate, many frameworks have been developed, e.g. Lombok for Java. The same code as above is auto-generated by Lombok using Java annotations, which is a form of metaprogramming:
In object-oriented design, the chain-of-responsibility pattern is a behavioral design pattern consisting of a source of command objects and a series of processing objects. Each processing object contains logic that defines the types of command objects that it can handle; the rest are passed to the next processing object in the chain.
Application Lifecycle Framework, a closed project. Business Intelligence and Reporting Tools Project (BIRT), an Eclipse-based open source reporting system for web applications, especially those based on Java EE. [21] Data Tools Platform Project (DTP) provides relational database connectivity and SQL design tools.