Adapter

An adapter or adaptor is a device that converts attributes of one electrical device or system to those of an otherwise incompatible device or system. Some modify power or signal attributes, while others merely adapt the physical form of one electrical connector to another.

An electric power adapter may enable connection of a power plug, sometimes called «travel plug», used in one region to a AC power socket used in another, by offering connections for the disparate contact arrangements, while not changing the voltage. An AC adapter, also called a "recharger", is a small power supply that changes household electric current from distribution voltage (in the range 100 to 240 volts AC) to low voltage DC suitable for consumer electronics.

For computers and related items, one kind of serial port adapter enables connections between 25-contact and nine-contact connectors, but does not affect electrical power- and signalling-related attributes.

See also

Adapter pattern

In software engineering, the adapter pattern is a software design pattern that allows the interface of an existing class to be used from another interface. It is often used to make existing classes work with others without modifying their source code.

Definition

An adapter helps two incompatible interfaces to work together. This is the real world definition for an adapter. Interfaces may be incompatible but the inner functionality should suit the need. The Adapter design pattern allows otherwise incompatible classes to work together by converting the interface of one class into an interface expected by the clients.

Structure

There are two types of adapter patterns:

Object Adapter pattern

In this type of adapter pattern, the adapter contains an instance of the class it wraps. In this situation, the adapter makes calls to the instance of the wrapped object.

Class Adapter pattern

This type of adapter uses multiple polymorphic interfaces implementing or inheriting both the interface that is expected and the interface that is pre-existing. It is typical for the expected interface to be created as a pure interface class, especially in languages such as Java (before jdk 1.8) that do not support multiple inheritance of classes.

Bullitt

Bullitt is a 1968 American dramatic thriller film directed by Peter Yates and produced by Philip D'Antoni. It stars Steve McQueen, Robert Vaughn and Jacqueline Bisset. The screenplay by Alan R. Trustman and Harry Kleiner was based on the 1963 novel, Mute Witness, by Robert L. Fish, writing under the pseudonym Robert L. Pike. Lalo Schifrin wrote the original jazz-inspired score, arranged for brass and percussion. Robert Duvall has a small part as a cab driver who provides information to McQueen.

The film was made by McQueen's Solar Productions company, with his then-partner Robert E. Relyea as executive producer. Released by Warner Bros.-Seven Arts on October 17, 1968, the film was a critical and box office smash, later winning the Academy Award for Best Film Editing (Frank P. Keller) and receiving a nomination for Best Sound. Writers Trustman and Kleiner won a 1969 Edgar Award from the Mystery Writers of America for Best Motion Picture Screenplay. Bullitt is notable for its car chase scene through the streets of San Francisco, regarded as one of the most influential in movie history.

Bullitt (album)

Bullitt is the debut album by saxophonist Wilton Felder recorded in 1969 and released on the Pacific Jazz label.

Reception

AllMusic rated the album with 2 stars.

Track listing

Personnel

References

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Bullitt (soundtrack)

Bullitt is a soundtrack album to the motion picture Bullitt, by Argentine composer, pianist and conductor Lalo Schifrin, recorded in 1968 and released on the Warner Bros. label. The tracks released on the album are alternate versions of those heard in the film and were re-recorded at the film producers' insistence for a more "pop" oriented soundtrack.

Reception

The Allmusic review states "Everything on the album is visually evocative the way good soundtrack music should be, yet the individual cuts are tight and melodic enough to hold up to repeated listens. The end result is a soundtrack that succeeds both as a film score and a stand-alone album. This unique combination makes Bullitt one of the finest achievements in the Lalo Schifrin catalog and one of the best action film scores ever written".

Track listing

All compositions by Lalo Schifrin except as indicated