implements
41PostgreSQL — Developer(s) PostgreSQL Global Development Group Stable release 9.1.1[1] / 9.0.5 …
42Polymorphism in object-oriented programming — In simple terms, polymorphism is the ability of one type, A, to appear as and be used like another type, B. In strongly typed languages, this usually means that type A somehow derives from type B, or type A implements an interface that represents …
43Visitor pattern — [ LePUS3 ( [http://lepus.org.uk/ref/legend/legend.xml legend] ) ] In object oriented programming and software engineering, the visitor design pattern is a way of separating an algorithm from an object structure upon which it operates. A practical …
44Composite pattern — In software engineering, the composite pattern is a partitioning design pattern. The composite pattern describes that a group of objects are to be treated in the same way as a single instance of an object. The intent of a composite is to compose… …
45Java syntax — The syntax of the Java programming language is a set of rules that defines how a Java program is written and interpreted. Data structuresAlthough the language has special syntax for them, arrays and strings are not primitive types: they are… …
46Dependency injection — (DI) is a design pattern in object oriented computer programming whose purpose is to improve testability of, and simplify deployment of components in very large software systems. The Dependency Injection pattern involves at least three elements:… …
47clone (Java method) — clone() is a method in the Java programming language for object duplication. In Java, objects are manipulated through reference variables, and there is no operator for copying an object the assignment operator duplicates the reference, not the… …
48Priority queue — A priority queue is an abstract data type in computer programming. It is exactly like a regular queue or stack data structure, but additionally, each element is associated with a priority . stack: elements are pulled in last in first out order (e …
49Delegation pattern — In software engineering, the delegation pattern is a design pattern in object oriented programming where an object, instead of performing one of its stated tasks, delegates that task to an associated helper object. There is an Inversion of… …
50Decorator pattern — Not to be confused with the concept of decorators in Python. In object oriented programming, the decorator pattern is a design pattern that allows behaviour to be added to an existing object dynamically. Contents 1 Introduction 2 Motivation 3… …
