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Implementations of the singleton pattern ensure that only one instance of the singleton class ever exists and typically provide global access to that instance. Typically, this is accomplished by: Declaring all constructors of the class to be private , which prevents it from being instantiated by other objects
In coding theory, the Singleton bound, named after Richard Collom Singleton, is a relatively crude upper bound on the size of an arbitrary block code with block length , size and minimum distance . It is also known as the Joshibound [ 1 ] proved by Joshi (1958) and even earlier by Komamiya (1953) .
A lock bypass is a technique in lockpicking, of defeating a lock through unlatching the underlying locking mechanism without operating the lock at all. It is commonly used on devices such as combination locks , where there is no natural access (such as a keyhole) for a tool to reach the locking mechanism.
Whereas the singleton allows only one instance of a class to be created, the multiton pattern allows for the controlled creation of multiple instances, which it manages through the use of a map. Rather than having a single instance per application (e.g. the java.lang.Runtime object in the Java programming language ) the multiton pattern instead ...
A bypass switch (or bypass TAP) is a hardware device that provides a fail-safe access port for an in-line active security appliance such as an intrusion prevention system (IPS), next generation firewall (NGFW), etc. Active, in-line security appliances are single points of failure in live computer networks because if the appliance loses power, experiences a software failure, or is taken off ...
The bridge was built through a joint venture between Spanish firm Acciona and Philippine firms First Balfour and DMCI. Connecting Cebu City and Cordova , the 27-meter-wide (89 ft) bridge is meant to serve an alternate route serving Mactan–Cebu International Airport , capable of serving at least 40,000 vehicles daily.
The Envalira Tunnel (Catalan: Túnel d'Envalira) is a tunnel in Andorra that runs between Pas de la Casa near the Andorra-France border and Grau Roig (Ski resort). It enables its users to avoid the Envalira Pass.
Jerome Singleton (born July 7, 1986) is a Paralympic athlete from the United States competing mainly in category T44 (single below knee amputation) sprint events. Because he had no fibula in his right calf, his leg was amputated below the knee when he was 18 months old.